JP2001061990A - Treatment for pyrolyzing halogenide such as pcb - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a direct contact to PCB by adding an emulsified solution of PCB to an absorbent hardening agent, by mixing and hardening metal powder, slag, and calcium per-carbonate to cover a surface with paste and by doubly coating and applying silicic acid and aluminate soda calcium per-carbonate paste. SOLUTION: PCB solution is mixed and emulsified with an emulsifying agent and is introduced to a hopper 3, slag powder, metal powder, powder body of soda are inserted into the hopper 3 to mix the emulsifying agent to introduce from a mixing machine outlet 6 to a mixing machine 8. An adding agent is added from a hopper 9 to the mixing machine 8, the emulsifying agent is added to powder previously mixed with bentonite, the metal powder, and the slag powder after pouring the emulsifying agent. This paste is poured into metal boxes 11, 11', 11", that are loaded on a conveyer, and is loaded on a drying shelf cart 12 to be hardened. This paste is covered drying with this hardened block, the bentonite having no PCB, urea, solution of iron silicon powder, and is covered drying with silicic paste to form double film.

Description

DETAILED DESCRIPTION OF THE INVENTION

[Industrial applications] C. Various methods have been tried for the thermal decomposition of B and other halogenated compounds, but there is no solution for the treatment, and only storage is required. C. If the gas is generated from B gas and dioxin is buried underground, it causes pollution of groundwater and is difficult to dispose. Accordingly, the present invention provides C. B is a chlorinated liquid and has a relatively high fluorine point. The chlorine is increased even when heated, so it is difficult to raise the temperature. Even if the temperature is raised, it is difficult to thermally decompose. The emulsified liquid is absorbed by highly adsorbent bentonite, and the ore slag powder, iron silicon, iron powder, steel material and aluminum powder are dispersed to produce a cured product. Next, the cured product was broken while being soft and made into small blocks.
C. The small block in which the solution B is finely dispersed is mixed with quicklime clinker and slag to envelop and harden the surface, and further, an aluminum silicate film is encased as a fired product.
Heat at １1400 ° C. The flue gas heated and burnt is catalytically decomposed by a manganese dioxide catalyst, the generated hydrochloric acid is oxidized to chlorine, and the hydrogen carbonate is catalytically oxidatively decomposed. Steam is blown in to neutralize excess chlorine and hydrochloric acid and penetrate through multiple coolers. This cooler was brought into contact with a catalyst molded with magnesium clinker, carbon powder and bittern and fitted with metal chips to reduce the flue gas temperature to 1000 ° C.
The temperature was lowered from 1100 ° C to 650 ° C, and the temperature was lowered by suction to 400 ° C with a sirocco fan. The flue gas that had been desalted, desulfurized and denitrated in the adsorption layer was introduced into the sorbet solution for washing. After decarbonation, smoke is exhausted. Such a mechanism is also applied to the decomposition of vinyl chloride, parapine and other chlorinated carbohydrates to achieve safe incineration. In this method, sodium silicate and sodium peroxide are put into iron chromite, iron vanadium ore, iron manganese ore, or iron tungsten ore powder, a paste is added, and the powder obtained by drying the bentonite emulsion is added and mixed. When the cured product is heated and fired at 1000 ° C. to 1400 ° C. as a molded product, P.I. C. B
Is completely decomposed, and hydrocarbons and chlorine are separated and decomposed. This further promotes the decomposition because the current easily flows. Then, in order to further increase the decomposition efficiency, water is mixed with a mixture of bentonite metal powder ore slag powder to mix P.O. C. After enclosing and drying the surface of the bentonite mixed molded product containing B, a high viscosity liquid of sodium aluminate or sodium silicate is sprayed to further form a sodium silicate film. When forming such a double layer, since the surface is vitrified, after drying,
When this is directly introduced into an incinerator and a mixed gas obtained by adding oxygen to air is blown and heated to 1000 ° C. to 1400 ° C., the temperature of the furnace becomes about 500 ° C. and the foam becomes a molded body surface. Wrapped. The chlorine gas inside is partially neutralized with soda and the hydrocarbon gas is 8
It is thermally decomposed at 00 ° C. and partly diffuses through the silica foam into the combustion furnace and is treated by the above-mentioned method. If granular sodium percarbonate or calcium percarbonate is mixed with the sodium silicate, desalting and dehydrocarbonation are performed. The one added with bentonite, gypsum or blast furnace slag cement hardens immediately and obtains a hardened finish in 5 to 6 days after sun drying.
P. C. The content of B increases only by dehydration. When iron powder, aluminum powder, steel powder, and aluminum carbon ash are added to this bentonite in advance, P.P. C. B is easily desalted and forms iron chloride, aluminum chloride, copper chloride and siloxane to form P.B. C. The bound chlorine of B is liberated, and the separated hydrocarbon is further thermally decomposed by the silicate. The iron chloride and copper aluminum chloride formed there contain a large amount of lime when silicic acid and base slag are added, so they react with calcium and partially convert the metal to oxides, some are absorbed by carbon, and the other are molded bodies Some of the hydrocarbons scattered to the outside are burned to become carbon and become carbon dioxide gas, and the others are recombined with chlorinated hydrocarbons and scattered from the bentonite molded product together with some hydrocarbons. P. C. Examples of blending of bentonite and other compounds for solidifying B are as follows.

Example 1 Bentonite powder 300 g C. B emulsifier 400g slag powder 130g recycled aluminum by-product aluminum ash 150g iron powder 150g aluminum powder 2g copper powder 5g

[Example 2] C. B emulsion C. Liquid B 100g Surfactant 60g Water 300g Alcohol 15g

In the formulation example of Example 2, P. was added to an autoclave equipped with a stirrer. C. Add solution B and then add surfactant solution 60
g of water and then stirred, then 15 g of alcohol and stirred, and then 300 g of water and stirred to emulsify. C. B
Using part of Mizuno,

Example 1 is mixed, poured into a mold or plastic mold, and left to solidify in 3 hours. It is dried in the sun and dehydrated, but it is difficult to break it when completely dried, so it is broken by a breaking machine in a semi-dry state. In this case, it is not necessary to break the material that has been cast into a plastic mold and solidified in a spherical, elliptical, or angular shape, so if it is dried in the sun, sodium silicate or aluminate Since the mucus obtained by mixing soda, sodium percarbonate, and calcium percarbonate powder was applied and dried, P.I. C. It is safe because there is no filtration from inside liquid B. And 1000 ° C ~
To raise the temperature of 1400 ° C, add 2-5 oxygen gas in the air.
%, So that low-temperature heating is not required. And, P. generated during heating. C. The generation of B gas is insulated by bubbling of sodium peroxide in sodium silicate and decomposed at 300 ° C inside, and the salt is demineralized by the thermal contact of the metal powder, and the hydrocarbons are excessive in this sodium silicate. Since oxidized soda is contained, oxidized combustion is promoted and burns with fuel kerosene. This furnace takes 9 minutes in 30 minutes
When the temperature reaches 80 ° C. and reaches 1400 ° C. within one hour, the temperature is maintained at 1400 ° C. when waste polyethylene is charged. So Sic 98%
A high alumina castable is laminated as the above ceramic tile to form a furnace wall. In a known method, sulfur is added to the generated chlorine and hydrochloric acid, but this is a problem because So3 is generated by thermal decomposition. For gypsum, the thermal change is less than for sulfur. In this heating reaction, a well-known Yoshihiro Kagawa employs a low-temperature decomposition method.
Decomposition at low temperature of 80 to 300 ° C. C. Since 90% of B is still present, there is a problem in the generation of dioxin. Further, there is a drawback that this must be remolded and fired. C. B during the transfer of the calcined ash. C. There is a disadvantage that B is easily dispersed. The method of the present invention comprises a method of emulsifying P.I. emulsified in a mixture of bentonite, metal powder, steel slag powder and aluminum ash powder. C. The molded solid that was impregnated with Liquid B and dried was further subjected to P.I. C. A paste mixed with bentonite sodium carbonate and metal powder is applied to prevent B from filtering out, and a shell is formed on the surface. A part of the shell reacts with ammonia gas to make chlorine uniform, but chlorine gas is chlorided. The chlorine gas is diffused as ammonia, and the chlorine gas is directly contacted with a manganese dioxide catalyst to oxidize the mixed hydrochloric acid gas and convert it to chlorine gas. The high-temperature chlorine gas forms ammonia chloride partially with the ammonia gas, but most of the chlorine gas is transferred to the next cooler as it is. When the cooler comes into contact with magnesia clinker and a catalyst hardened with carbon and bitter juice, the magnesia clinker reacts with carbon at a temperature of 1000 ° C. or more, becomes metallic magnesium vapor, saturates the cooler, and chlorine gas enters into the cooler. And immediately changes to magnesium chloride. The calcium chloride passes through the primary cooler and is mixed with the magnesia clinker, carbon and bittern in the secondary cooling and is absorbed by bittern. When magnesium or aluminum metal is fitted into the original internal space as a lining catalyst in the primary cooler, chlorine gas reacts with the magnesium or aluminum metal. At this time, residual hydrocarbon gas or P.O. C. 1000 ℃ when B gas enters
At high temperatures, catalytic cracking occurs and catalytic cracking produces carbon dioxide gas and magnesia chelate compound hydrocarbon residues, which become anxious and react in the next cooler to gradually reduce hydrocarbons and P.C. C. Carbon dioxide gas increases by decreasing the amount of B and chlorine gas. In particular, when iron scrap is put into contact at 800 ° C. or higher, chlorine is oxidized and easily reacted, and the combustion gas is easily oxidized. When silicon manganese metal is put in this manganese dioxide case, decomposition is further promoted, and when an iron silicon catalyst is put in, siloxane and iron chloride are converted to desalination. P. C. B has been widely used as a transformer oil and also as a heating medium, but many people eat food when the kanemi grease used as the heating medium breaks into the food oil when the tube containing the electric heating element is broken. As a result, many people died and many people suffered from chronic toxicity. Immediately stopped using it. However, since there is no decisive way to dispose of the stock that has accumulated and stored an enormous amount, it is still being kept. This P. C. Regarding the B treatment, the inventor Yoshihiro Kagawa of JP Patent Application Publication No. 198242, the patent application publication No. 61177 of Yoshihiro Kagawa, Hiromitsu Hori, and the patent application publication No. 39392 of 1994
Patents of No. 8 inventor Yoshihiro Kagawa and Masayuki Wada, 1995 Patent Application Publication No. 024695 inventor Yoshihiro Kagawa and Masayuki Wada have patents, and they have a very wide range of patent contents. Needs more time concerns from a business perspective. And a processing process tends to become complicated. And
P. C. Even if the hydrocarbons in B are decomposed, chlorine and chlorine gas remain, and the chlorine gas also reacts with incompletely burned fuel, so that dioxin is also generated secondarily, and there is a problem with this treatment method. This P. C. Several methods of burning B have been developed. However, due to insufficient combustion, a large amount of harmful gas such as dioxin is generated, causing secondary pollution, and it is difficult to treat it by the power of residents. That is the reality. Therefore, this P. C. A method has been developed in which B is impregnated in quicklime and further mixed with slag powder that forms siloxane to form a block, which is then placed in an incinerator and treated at a high temperature. Separately, in Kaneka, P.I. C. A method has been developed in which B is charged in a liquid state into a high-temperature incinerator and gradually burned. However, P. C. When B is burned with a liquid, if it is heated in an incinerator, it will be vaporized first and its gas leakage will always occur at the practical stage due to temporary lowering of temperature, and this will be a cause of the generation of pollutant gases and further vaporization P. C. When B decomposes at a high temperature, a decrease in desalination occurs. C. The hydrocarbons of B then begin to crack,
This is because when the water is saturated in the furnace, hydrochloric acid is formed to promote the generation of dioxin, so that dioxin is easily generated in rainy weather. Therefore, P. C. B
Was absorbed into quicklime or slag powder to form a block, and the indirect combustion method was adopted. C.
It takes a certain time to react with the chlorine of B. In addition, adding slag powder to make siloxane requires an even longer reaction time. Immediately decomposing at high temperature in an incinerator without considering the concern of this time. C. B is gasified before the decomposition reaction and is filled in the furnace, which causes the generation of harmful gas as in the former case. P.K. developed by Mr. Kagawa C.
B. In the treatment, quicklime, slag, mica powder, and montmorillonite powder were added to P. C. 180 ° C granulated powder impregnated with B
Heating at ~ 360 ° C causes a thermal reaction in about 20 hours, 90-98% of which is decomposed and rendered harmless. However, in practice, P.I. C. Since some B remains, its disposal requires further heating in a regenerative incinerator. Looking at the structure of this incinerator, it is a general incinerator, and a closed incineration method, which is liable to leak harmful gas, is safer. Then, the quicklime, slag, mica (palm kiyuhen), and montmorillonite are added to P. C. When absorbing B, quicklime has an exothermic reaction, which may cause some gas leakage.

[Problems to be solved by the present invention] C. Limitation of impregnation amount of liquid B. P. C. B. Direct P.B.
C. How to prevent B contact. P. C. B Temperature control when the molded product is directly heated at high temperature. (A) P. containing C. B Molding of thermal decomposition accelerator by compounding. (B) As temperature management, P. C. Control of rapid rise in temperature due to heat insulation by foaming the surface of the molded B product. (C) P. containing. C. When the molded product B is thermally decomposed, the amount of metal powder added to promote desalination is examined. And the amount of peroxide and ammonium salt added. Adjustment of incineration temperature. Decomposition of generated chlorine gas and dioxin and purification of harmful gas in flue gas. Reuse of incineration ash.

Means for Solving the Problems C. As a method of treating B, if quicklime is used, water is likely to be generated when water enters. C. B evaporates easily with water vapor.
To prevent this, it is necessary to always mix at low temperatures. Accordingly, the present invention utilizes a fact that bentonite, gypsum, basic slag and aluminum ash are mixed, and that bentonite is easily cured in a state of a high water content. Then, metal powders such as iron, iron silicon, aluminum, and copper magnesium were added. P.
C. Since the bentonite does not harden when the liquid B is directly added, the emulsified solution dispersed and emulsified in water using an emulsifier with a surfactant is put into the bentonite so that the effect can be obtained, and it is formed into a block or a spherical shape. The cured product is dried in the sun and dehydrated.
C. Put water in bentonite, lime, or slag powder that does not contain B and hang it. Then, after drying and curing, a mixture of a metal half and lime in a 20% sodium silicate solution is applied to the surface of the block and dried. Such surface treatment of sodium silicate is for preventing cracks due to heating of the internal block and suppressing ejection of internal gas. In particular, this is necessary for high temperature firing. This is dried and the block molded product is used as incineration material. This incinerator is a furnace that reaches 980 ° C in 30 minutes.
In addition to the temperature of 0 ° C. to 1400 ° C., an air gas obtained by mixing concentrated oxygen with 2 to 3% of air gas in a closed system is used as a combustion mixed gas. Then, the combustion gas is heated by the secondary burner, and the residence time of the combustion gas in the furnace is set to 3 minutes or more. Chlorine gas is passed through contact with a secondary manganese catalyst at a temperature of 1000 to 1400 ° C. to perform dehydrochlorination to be converted into chlorine gas. And P.M. C. B and hydrocarbon gas carbon are oxidatively decomposed. Next, the flue gas is desalinated by converting chlorine to magnesium chloride siloxane with an iron silicon catalyst and a magnesium catalyst. This magnesium reaction is carried out at a temperature of 800 ° C. or higher, and is cooled to a temperature lower than 800 ° C., and desalination of flue gas is performed by putting iron, iron silicon, and aluminum metal scrap into a cooler in advance and contacting the metal with a metal. The substance converted into chloride is placed in a dust collector, and smoke gas is sucked by a sirocco fan to facilitate movement. Next, this is adsorbed through a lime layer, activated carbon, and foamed fiber debris adsorption medium and desalted, desulfurized, and denitrated.The exhaust gas is washed with a sorbet solution to perform desalination, desulfurization, denitration, and flue gas. Is detoxified and released. Then, the ammonia gas generated by the sorbet solution is sent to a manganese dioxide catalyst case and used for the reaction between chlorine by-product of ammonia chloride and chlorine by neutralizing hydrochloric acid gas.

[Action] C. B is added to the stirred autoclave, then a surfactant is added, and a water liquid and a small amount of alcohol are added with good stirring, and a hydrogen peroxide liquid is added to make an emulsion. Then, this emulsion is mixed with calcium peroxide or sodium peroxide granules previously coated with a water-repellent paraffin film with bentonite, slag, gypsum, white cement, alumina powder, bauxide powder, Powder, iron silicon, silicon manganese, metal aluminum powder, and metal copper powder are collected. The metal powder produced by crushing from scrap waste is mixed, and the above-mentioned emulsion is mixed into excess to form a paste. Or in a plastic mold and leave to cure. This metal powder is 1-3%. The cured molded product is released from the mold or the plastic mold and allowed to stand. When the cured strength is obtained, a bentonite paste is mixed with mineral slag powder or calcium percarbonate on the surface, and P.O. C. A bentonite film containing no B is applied. At this time, if necessary, a 1% solution of a hopal solution is added to increase the strength.
Then, this is left to dry in the sun, and a surface obtained by adding soda mucilage of silicic acid or aluminate to calcium percarbonate is attached to the surface and dried and hardened. This molding is
At room temperature, C. B is completely sealed and does not leak outside. Although there are various surfactants, sodium alkylbenzene sulfonate is used as a fatty acid-proof soap, and P.I. C. After adding 20% of the solution B and stirring, an aqueous solution containing a hydrogen peroxide solution was added thereto, followed by stirring and mixing. C. B
I made a latex. Bentonite mixed with slag flour plaster has already been used as a substitute for cement concrete for the base of the Osaka Station Station Hotel, and has already been implemented with the strength to withstand the Kobe Earthquake.
Basic iron slag was pulverized and used for bentonite.
To increase the strength of the bentonite and shorten the hardening time, the addition of gypsum or white cement will accelerate the hardening. In particular, if a large amount of emulsified water is added, the effect is delayed, so that it is added as needed. C.
Chlorine is easily added in the contact between B and the metal powder, so that it is added in a small amount. For example, C. When chlorine of B and metal scraps come into contact with each other, they easily form iron ions in the presence of peroxide. C. The chlorine added to B is also ionized and released to form iron chloride. In addition, iron silicon forms siloxane, and this iron salt may be recombined with the separated hydrocarbons to form dioxin.Therefore, if ammonia urea is added in advance, iron chloride becomes a urea double salt, and partly ammonium chloride is added. Dioxins are rarely made because iron oxide is made. P. C. When B is mixed with an alkylbenzene sodium sulfonate and an alkali soap solution, the mixture is emulsified when stirred. To increase productivity, increase the amount of water
C. It is preferable to reduce the proportion of B added. Generally 20
%, The curing of bentonite is rapid. Then, the surface is wrapped with bentonite powder and dried in the sun. After drying, add 20% sodium silicate solution or sodium aluminate mucus with slag, lime, or calcium carbonate, apply the mixed paste, and dry to form a white block. To be incinerated. In such a processed product, the inner core P.P. C. B
Since the bentonite block impregnated with latex is wrapped on the outer surface with hard silicic acid or sodium aluminate,
P. C. B has no direct contact with the hand. C. There is no leakage of B. Put this in an incinerator and take 40 minutes to get 10
In order to raise the temperature in the furnace to 00 to 1400 ° C., when a mixture of concentrated oxygen gas and 2% to 5% air is blown into the furnace as secondary air, the temperature reaches 1400 ° C. in 40 minutes. . In this firing, P. C. The B-bentonite block first foams the mucus of sodium silicate or sodium aluminate to form a closed-cell body only on the surface, expands 30 times to form a heat insulating material, and forms a silicic acid or aluminate contact surface with the internal bentonite. A soda glass film is formed. P. including P. C. The block of B-bentonite mixture is
Although the temperature rises due to heating of the silicate or the like on the surface, the thermal conductivity of this silicate foam is 0.03 hr ° C., and it is difficult to reach the same temperature up to the core.
The temperature is maintained at about 00 to 380 ° C. When appropriate,
C. B reacts with the calcium and silicic acid of bentonite and penetrates to the outside as siloxane, chlorine gas and hydrochloric acid gas, partly becomes metal chloride due to the presence of metal, and partly converts calcium and calcium chloride or calcium chlorate. Forming P. C. B gradually decomposes into hydrocarbons and carbon dioxide, and some of P.B. C. It comes out of the block together with the hydrocarbon of B and reacts with the alkali of silicate or aluminate to form calcium chloride or salt, and the remaining 10%
Chlorine enters the furnace. If the sodium silicate or aluminate contains a large amount of lime or a large amount of slag, the chlorine gas reacts with the slag to form calcium chloride when metal powder is added, and is desalted. Hydrocarbons and P. C. As for the residue of B, when silicic acid or aluminate is red-heated in the furnace and radiates infrared rays, the internal hydrocarbons are decomposed more and the furnace temperature becomes 100%.
When the temperature reaches 0 to 1400 ° C, dioxin is 0.01 to
It drops to about 0.1 nanogram. The furnace temperature of 1400 ° C. is 0.1 nanogram and passes through the manganese dioxide catalyst case to react with the metal gas in the first cooling pipe. In general, dioxin is easily formed when iron chloride is formed and chlorine gas coexists with a hydrocarbon, but magnesium chloride or an aluminum chloride compound does not act as a catalyst for chlorine addition. Aluminum chloride behaves much like iron ions. In the cooler, at the flue gas temperature of 1000 ° C, the generation of magnesium gas is activated. Magnesium gas produced easily reacts with chlorine gas. Manganese, aluminum and magnesium metal powders are brought into contact in advance to produce chlorine gas metal and chloride. In this method, the conventional P.I. C.
Unlike B obtained by firing B in a liquid state, P.B. C. Since the generation of B gas is small, P. C. Low mixing of B gas.
In addition, P.I. C. When directly incinerating the one containing B, C. Although the amount of B directly evaporated is not less than the former, a small amount evaporates until the furnace temperature reaches 1000 ° C. Therefore, in order to prevent this, it is necessary to emulsify with an emulsifier. To further prevent this, the dried and finely-adsorbed bentonite is double-wrapped with a bentonite film, a silica film is coated and coated with sodium silicate and another mixed solution to prevent gas leakage. When the dried and cured product is incinerated as described above, the P.C. C. There is no evaporation of B,
Prevents decomposition into metals, low hydrocarbons, carbonic acid, and chlorine.
The remaining dioxin in the furnace is completely decomposed into chlorine gas and carbon dioxide gas in the presence of ore powder, iron tungsten powder, iron baradium powder and iron manganese powder containing iron, iron silicon, silicon manganese copper powder. Although chlorine partially reacts as siloxane or alkalinized product, the reaction hardly occurs and P.O. C. B and dioxin are less than 0.1 nanogram. In addition, the furnace internal structure is separated into a primary burner chamber, an oxidation chamber, and a secondary top burner chamber, and air mixed with 2 to 5% of oxygen gas is preheated and sent to the oxidation chamber. P. generated in the combustion chamber when sent to the combustion chamber and the secondary burner chamber. C. B
Is decomposed, and a small amount of hydrocarbons and carbon dioxide gas together with hydrochloric acid and chlorine are removed from the flue by a manganese dioxide carbon catalyst.Dehydrochlorination and desalination are performed. Vessel silicon manganese, iron silicon,
Chlorine gas and hydrochloric acid gas react with each other by a metal catalyst of magnesium and aluminum copper to be desalted. Inside the cooler, magnesia clinker carbon is hardened with bitterness and the ceramic is lined to make it a thick wall, so this lining ceramic generates metal magnesium gas at high temperature and replaces chlorine gas with magnesium chloride, Continue to reduce while carbon content is high. And another metal catalyst iron shavings,
The chlorine reacts with the copper scrap and the aluminum scrap to react and desalinate, and the temperature is lowered to 600 ° C. or less while contacting each cooler. When exhausting smoke directly from this smoke exhaust, a suction fan is not required, but in order to pass through such a long catalyst layer, it is necessary to attach a sirocco fan and to carry by suction. Then, it is necessary to remove the dust with a dust collector, and the suction life to the suction case connected next is improved. The dust collection temperature is preferably 800 ° C or less. Dioxin is not generated if hydrochloric acid and chlorine are desalted sufficiently. However, when oxidized by manganese dioxide and silicon manganese catalyst, ammonia gas is used. If added, it is converted into hydrochloric acid ammonium chloride gas, which easily reacts with the metal catalyst and chlorine gas. In Germany, a method in which hydrogen peroxide is introduced into flue gas uses vanadium as a catalyst layer.Vanadium has a property of corroding refractories and is easily vaporized. Used manganese dioxide. When peroxide is decomposed and comes into contact with hydrogen peroxide, oxygen, or chlorine gas, the amount of generated hydrochloric acid partially increases, and many problems occur particularly in low-temperature combustion. Therefore, if ammonia gas produced as a by-product in sorbet is used, even if hydrochloric acid present in the liquid is formed, it reacts with ammonia gas immediately and becomes powder and is separated from the gas.This easily reacts with the metal catalyst, and chlorine becomes ammonium chloride. It is easy to be absorbed and desalination is easily performed. Since the exhaust gas thus desalted does not separate the impure gas, it passes through the adsorbent layer and is subjected to desalination, desulfurization, and denitration, and the purified gas is further decarbonated with sorbet solution and purified. The flue gas is exhausted, and the calcium hydroxide in the sorbet solution precipitates as calcium carbonate and remains as calcium chloride in the solution along with saline and aqueous sodium bicarbonate, and is further desalted, desulfurized, and denitrated and released. Is done. The ammonia gas evaporates on the upper surface of the sorbet solution, so that when the ammonia gas is blown to the manganese dioxide catalyst, the flue gas is desalted. In this method, as much as 20% of the carbon dioxide of the air environment is removed on average, and the carbon dioxide is filtered and recovered as sodium bicarbonate. If it is calcined and converted to carbon dioxide, the economic efficiency is improved by 10% or more. This is P. C. If this method is employed not only in the B incineration method but also in the incineration of vinyl chloride resin, parapine chloride, other chlorides and other halides, the amount of dioxin generated is limited, and air pollution is improved. Especially containing urea. C.
B. When placed in a molded product of a bentonite mixture in advance, it is decomposed by contact heating of metal powder. C. B easily releases chlorine, and liberated P.B. C. The hydrocarbon of B is also easily decomposed into lower molecules by the presence of the metal catalyst, and siloxane changes a lot in the presence of iron silicon, silicon manganese, or copper silicon metal powder. And P. C.
B, surface-processed molded articles of bentonite mixture C. Since the leakage of B can be prevented by the formation of a surface film, it has a storability, and can be easily transported, so that the primary processing in a place without an incinerator is safe.
C. It is also true that B, which is currently sealed and stored in a drum can as it is, has leaked due to corrosion of a part of the container and has penetrated underground, and safety measures have been required.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in the drawings, the present invention will be described below in detail with reference to embodiments.

FIG. C. B shows a process diagram of decomposition and incineration, in which slag powder, metal powder, and soda are introduced into a mixer (1) and P.B.
C. Liquid B is mixed with an emulsifier and emulsified. This is introduced into the hopper (3), the hopper (5) of the mixer (4) is charged, and the slag powder, metal powder and soda powder are charged into the hopper (3) by the conveyor (2). The mixture is mixed with the emulsion, loaded on the conveyor (7) from the mixer outlet (6), transported, and introduced into the mixer (8). Next, an additive is added from the mixer (8) and the hopper (9), and the emulsion is put therein. The emulsion is added to a powder in which bentonite, metal powder, and slag powder are preliminarily mixed to form a paste. Mold housing (11) pre-loaded with this paste on conveyor (10)
(11 ') and (11 ") are injected and transported to the drying rack (1).
Load on 2) and cure. Next, the cured block, P.I. C. B-free bentonite, urea, and iron silicon powder are wrapped and dried, and sodium silicate paste is wrapped and dried, and screened with a screener (14) to form a double film. Then, large and small blocks are sorted by a roll screen. The sorting block was put in a mold case (5), transported by a conveyor (16), and a paste in which a metal alloy powder and a sodium silicate solution were mixed was flowed down from the hopper (17) to the block to cover the surface. The items are loaded on a drying shelf (18) and dried in the sun.
Move to 9), blow dry and harden the trolley (2
The incinerator (21) is loaded, transported, and sealed in the primary burner chamber of the incinerator (21) to perform burner heating. (22) is an electrolytic oxygen generator which introduces oxygen gas into the oxidation chamber (21a), connects it to the pipe (23 '), introduces it into the air pipe (23), and mixes and blows. And this oxidation chamber (21
The gas of a) is sent to the primary burner chamber (21b), and the primary air blown by a blower through a pipe installed under the combustion chamber through a pipe provided at the bottom of the combustion chamber is blown upward from the portion of the combustion table, and the primary burner chamber of the incinerator becomes 30%. In 1000 minutes. Therefore, P. C. In order to incinerate B, if the primary burner chamber is previously heated to 1000 ° C. and then charged, it is 20 to 3 times.
Decompose by heating to 1000 ° C. in 0 minutes. C. The chlorine in B is separated as chlorine gas and hydrochloric acid gas, and the hydrocarbon is carbonized and ashed after carbonization. However, this ash glows red as a block sintered mass by sintering, and the residual P.C.
C. The B gas is thermally decomposed, and most of the hydrocarbons are changed to carbon dioxide gas, chlorine gas, hydrochloric acid gas, and water vapor, and are emitted as smoke and diffused. When the temperature of the sintered block reaches 1200 ° C., the sintered block turns red and turns white, and gas generation ends. The flue gas is discharged from the chimney (23) and the catalyst case (2) lined with manganese dioxide is used.
4) Oxidized in the cooling case (25) (26) (27)
(28) The iron scrap, aluminum shoulder, and copper scrap previously fitted into a caster ceramic lining prepared by mixing bitterness with a mixture of magnesicreaker and carbon, and cooling while contacting
Decompose and desalinate flue gas at a temperature of 000 to 1400 ° C to 600
After the flue gas whose temperature has been reduced to 0 ° C. is gradually dusted by a dust collector (29), it is sucked by a sirocco fan (30) and the exhaust gas is cooled to 45 ° C.
After the exhaust gas temperature is lowered to a temperature of 0 to 600 ° C., the flue gas adsorbed and purified by the adsorption fan tank (31) is washed and purified by the tank (32) containing the sorbet solution (34) to perform decarbonation. Simultaneously denitrification and desulfurization and chimney (35)
Exhaust from The sorbet solution (34) is obtained by dispersing slaked lime in water, blowing in ammonia gas to saturate, adding salt, and injecting while washing with a smoke exhaust gas injector to wash the carbon dioxide gas in the smoke with lime salt. It reacts and changes into calcium chloride, and sodium carbonate is formed and precipitated. This sodium bicarbonate is calcined to produce sodium carbonate, to produce by-products and to streamline production. Since this saturated aqueous ammonia collects both NOx and Sox in the flue gas in the liquid, desulfurization and denitration are simultaneously performed, and the concentrated ammonia water is concentrated and recovered as a separated ammonia salt. The liquid (36) is collected from the tank (37) by the sediment separation filter, and the liquid is collected by the pump (38).
To return to the tank (32). Then, the sorbet solution is adjusted in the tank (37).

FIG. C. FIG. 2 shows an oblique side view of a bentonite block that has absorbed latex B; C. The emulsion obtained by emulsifying B was added to a powder obtained by mixing bentonite powder, ore slag powder and metal powder, and the mixture was stirred and mixed, cast in a mold, and cured. ).
Metal powder (2A) bentonite (3A) ore slag powder (4A) is mixed on the inner surface of this block (1A).

FIG. 3 shows an oblique side view of a surface-treated block of a bentonite block. C. A block obtained by coating the surface of the bentonite block (1'A) containing the emulsion B with a solution of iron chrome, iron manganese, and iron vanadium in a small amount of sodium silicate water and drying the film ((2'A)) It is.

FIG. 4 shows an oblique side view of a block obtained by processing a surface of a sodium silicate film,

When the block shown in Fig. 3 is fired, sodium silicate foams to form a sponge film (2 "A), seals the inside, and then heats the PCB emulsion inside and contacts metal powder. The metal powder reacts and is desalted to release hydrocarbons and thermally decompose. However, the PCB vaporized gas is no longer generated due to sealing due to vitrification of the surface, and the hydrocarbon-decomposed gas is removed. Chlorine gas is partially vaporized, and this block radiates infrared rays as the temperature rises to thermally decompose hydrocarbons.To sinter it at a temperature of 1000 to 1400 ° C, the furnace material must be made of silicon carbide or nitride. Laminated with high alumina castable plate with silicon or silicon boride heat resistant tile, and with primary air blown into primary burner and 2 ~ 2
An oxidation chamber for heating 5% oxygen gas through a heat exchanger and igniting a primary burner is a P.O. C. In order to prevent incomplete combustion due to the lack of oxygen in B, preheated secondary air is sent to the primary burner chamber, and the combustion gas is sent to the top burner, that is, the secondary burner chamber, and is heated by the radiant heat of the heat exchanger to 1000 to 1400.
Send to the chimney at a temperature of ° C. A manganese dioxide castable catalyst is present in the chimney and oxidized, and the flue gas converts hydrochloric acid gas to chlorine to prevent generation of dioxin. Then, at 1000 ° C, the flue gas that was sent to a cooler containing metal scraps of copper, iron silicon, silicon manganese, aluminum, and magnesium with a magnesia clinker carbon lining castable lining at 1000 ° C and catalytically decomposed with a metal catalyst was converted to magnesia clinker It reacts with magnesium metal gas reduced with carbon to be desalted, desalted as magnesium chloride and metal chloride, and when passing through a plurality of coolers, 30 to 50% of the chlorine gas is desalted and converted into salts. Absorbed in the cooler. Then, when the temperature further falls below 1,000 to 600 ° C., the smoke is purified by suctioning with a dust collector and a sirocco fan, and then is purified by adsorption with a calcium calcium salt in an adsorption case, and is washed and exhausted with a sorbet solution. When treated by such a mechanism, dioxin is reduced to 0.1 nanogram or less, and there is no secondary pollution. And dioxin in block ash is 0.1
Less than nanograms. This is burned in a liquid state. C. For liquid B, the amount of dioxin generated is 80
0 nanograms and the residual dioxin of the combustion ash is 10
0 nanograms. This is the C. When B is heated, it becomes a liquid or gas, is thermally decomposed from the gas, and incinerates, but since the latent heat of vaporization locally lowers the heating temperature,
There is a disadvantage that liquid gas is mixed. To completely decompose this, C. In this method, B is first diluted by purification, adsorbed in silicate using the adsorption action of bentonite, and desalted with metal powder. Next, the porous surface of the bentonite is vitrified with silicate or alkali aluminate to form a P.O. C. The thermal decomposition is carried out with the gas generation of B being suppressed. In addition, ammonia chloride formed when reacting ammonia gas in a manganese dioxide catalyst reacts with metal scrap and also reacts with reduced magnesium. This reduced magnesium generates a magnesium metal gas at a high temperature of 1000 ° C. and does not generate at a temperature of 800 ° C. or less. C. Demineralize from B.

FIG. 5 shows a side view of the foamed block when the molded block is fired. A film (2 ″ ′ A) is formed on the top surface of the block with sodium silicate metal powder, and a bentonite film (3 ″ ′ A) is formed inside the film. ), And formed with a block (1 "'A) in which metal powder, bentonite, lime, and an alkali salt are added and mixed in the inner core, and the shape change when heated in an incinerator. As shown, at 500 ° C., the uppermost surface is foamed and becomes porous, and the next contact surface (K) is vitrified and hermetically sealed, so that the internal gas does not escape to the outside, and the foam becomes adiabatic due to the foaming and becomes abrupt. The core block (1 "'A) reacts with the mineral slag powder and metal powder while adsorbing the generated gas with bentonite, preventing the temperature from rising and preventing the internal catalytic cracking reaction from occurring. C. The hydrocarbons of B and chlorine are decomposed and separated into metal chlorides, and the hydrocarbons are partially dehydrogenated to generate carbonized carbon monoxide and a small amount of hydrocarbons. When the surface passes through the infrared layer, hydrocarbons are further decomposed and carbon monoxide is also thermally decomposed and extremely diffused in the furnace. The generation of dioxin is always caused by hydrochloric acid gas, but this block structure generates less salts, but rather produces hydrocarbons and chlorine gas and water due to incomplete combustion when kerosene fuel in the firing furnace is burned by a burner. The temperature in the furnace is likely to be lower than 800 ° C due to the reaction between the furnace and the furnace. Therefore, it is necessary to keep the temperature in the furnace at 1000 ° C to 1400 ° C and perform combustion. Dry film of acid, alkali aluminate mucus,
First, it foams and becomes heat-insulating, so that the inside relieves the heat temperature and glows red while suppressing cracking of the bentonite cured film. And P. C. When B is vaporized by heating, it is vaporized while being decomposed by the contact of calcium, magnesium, and metal powder with the reaction of peroxide and urea. At this time, if the silicic acid or alkali aluminate mixed film is red-heated, P.P.
C. B begins to decompose and generates carbon dioxide gas at 1000 ° C. and cools while contacting a manganese dioxide catalyst with magnesium gas and a metal catalyst passing through a flue along with a part of generated chlorine gas and hydrochloric acid gas, during which desalination is performed. The flue gas that has been suctioned and collected while desulfurization and denitrification is performed is further degassed in an adsorption case at a temperature of 450 ° C or less, and desalination, desulfurization, and denitration are performed. Further washed with sorbet solution,
At the same time, the ammonia gas generated by decarboxylation is sent to the manganese dioxide case to be desalted, and when sodium bicarbonate and calcium chloride are recovered by sorbet solution, the production cost is reduced and rationalized. At the same time, this calcium chloride can be used as a snow remover and defrosting agent, baking soda is baked as sodium carbonate, and hydrogen peroxide is added to make sodium peroxide, which is used as a molding material for incinerator raw materials There are advantages. Therefore, the known P.I. C. B remains even in a method of decomposing B by heating at a low temperature of 200 to 300 ° C. for 20 hours or more. C. Since B is present, reheating this requires twice heating and is troublesome twice. The method of heating and incineration at a high temperature of 1000 ° C. to 1400 ° C. in a short time while shortening the processing time while reducing the processing time is characterized in that the present invention is effective from the viewpoint of safety and that dioxin is less generated. Next, C. An example of the blending of the B emulsifier is as follows.

[Example 1] C. Solution B 100g Surfactant 100g 40% Soap 100g Water 1800g 30% Hydrogen Peroxide 100g

[Example 2] Impregnated base material Bentonite 100 g Basic slag or calcium percarbonate 60 g Plaster 30 g Metal iron powder or iron silicon 20 g Metal iron powder or aluminum powder 5 g Metal iron powder or copper powder 10 g

[Example 1] Emulsion 200g Urea (ammonium carbonate) 10g

[Example 3] Bentonite coating Bentonite powder 100 g Hydrogen peroxide 30 g Slag powder or calcium peroxide 30 g

[Example 4] 30% sodium silicate or sodium aluminate 100 g calcium percarbonate 15 g aluminum black ash powder 5 g

Example 1 is charged into an autoclave and stirred to form an emulsifier. Next,

Mix each material shown in [Example 2] and put it in an autoclave container.

[Example 1] C. The B emulsion is added and stirred to form a paste, poured into a plastic mold and left to cure. Then, the P.-containing mold released from the mold was released. C. The molded product of the cured B is dried in the sun. P. containing dried C. B molding is

[Example 3] The sodium silicate or sodium aluminate blend of Example 3 was wrapped with an wrapping machine, dried, and dried. C. Process so that B does not leak to the surface. this

[Example 2] has a thickness of 2 to 5 mm.

The silicate film of Example 3 is 5 mm thick. As described above, the feature of the present invention is that C. An emulsion containing a limited amount of B was prepared, and urea and ammonium salts were added to a hardener containing a mixture of bentonite, gypsum, white cement, mineral slag powder, and metal powder, and the mixture was hardened. C. The cured product obtained by thoroughly drying the dehydrated bentonite impregnated with the Emulsion B in the sun and dehydrating the solution was used as a P.B. C. B. A bentonite mixed paste containing no emulsion is further dried by attaching an outer coating to the paste, and further wrapping the outer surface with a paste in which calcium percarbonate is mixed with an alkali mucilage of silicic acid or aluminate and dried and hardened. Is P. C. Since B makes a safety body that does not directly touch the skin, it can be transported by a general truck to move it. In addition, heat resistance is enhanced by adding aluminum black ash, a by-product of the recycled aluminum plant, to sodium silicate. The incineration ash produced by this incineration is reused mainly for bentonite. C. Although it is used exclusively for the base material impregnated with the emulsion B, silicic acid and alkali aluminate form a hard block, so they are pulverized with a pulverizer, and this is added with urea, metal powder peroxide and bentonite. C. It is reused as a base material impregnated with the B emulsion. Since the bentonite gypsum is used 10 times or more, it helps to reduce incineration ash. Since the amount of dioxin in the incinerated ash is reduced to 0.1 nanogram or less, it can be recycled because it has low toxicity.

[Effects of the present invention] C. The waste oil of B cannot be incinerated at each electric power company or each electric company, and has been used up to the present. This is the C. This is because B generates a large amount of chlorine and is a cause of dioxin generation. To solve this, P.I. C. Solution B was first dispersed in water as an emulsion, and the mixture containing the metal powder, slag and bentonite was mixed with the emulsion to effect the effect, and the surface was covered with a sodium silicate solution to cover the surface. The dried block is incinerated while being oxidized at a temperature of 1000 ° C to 1400 ° C as an incinerated body, and the generated flue gas is oxidized by an oxidation catalyst and reacted with a metal in a cooler to desalt and remove hydrocarbons. It decomposes, removes and adsorbs flue gas whose temperature has dropped, performs desulfurization and denitration, cleans it with sorbet solution, decarbonates it, and exhausts the purified flue gas. The generation was 0.1 nanogram, and the residual dioxin in the incineration ash in the furnace was also 0.1 nanogram or less.
This result is used in the decomposition and incineration of vinyl chloride resin, paraffin chloride and organic chloride, and has the effect of preventing secondary pollution. In particular, since incinerated ash uses bentonite, P.O. C. It can be reused as a base material impregnated with liquid B, and there is no generation of dioxin due to additional mixing of insufficient metal powder, urea, calcium percarbonate, and bentonite gypsum. In addition, P.P. C. There is a method of injecting B, pressurizing it at high temperature and high pressure by electric discharge machining in an electric furnace, and instantaneously decomposing it. However, there is a safety problem with this high pressure vessel, and especially P. C. There is a risk of explosion in the decomposition of B, and there is also a problem in durability such as the degree of fatigue of the container.

[Brief description of the drawings]

FIG. C. Process diagram of B decomposition and incineration

FIG. C. Slant side view of bentonite block absorbing latex B

FIG. C. Oblique side view of a block processed surface of bentonite block containing B emulsion

FIG. 4 is an oblique side view of a block formed by processing a sodium silicate film.

FIG. 5 is a side view of the foam block when the molded block is fired.

Claims (1)

[Claims] P. C. To carry out the thermal decomposition treatment of B and other halogen compounds, these emulsions are mixed with water, ammonium salt, surfactant and soap and emulsified to form an emulsifying solution into the adsorbent hardeners bentonite, gypsum and white cement. The peroxide was mixed with metal powder, slag, and calcium percarbonate, cast into a plastics mold, cured and cured, and then bentonite, peroxide, aluminum plate,
The surface is covered with a paste mixed with a calcium salt and cured, and the surface is further coated with a silicic acid and sodium aluminate calcium percarbonate paste twice and dried to form a double-processed film. C. B, including P.B. C. B, 1000 parts of halogen compound molding
A plurality of cooling casings for subjecting flue gas generated by oxidizing and sintering in an oxidizing furnace at 1 to 1400 ° C to catalytic decomposition with a manganese dioxide catalyst casing containing ammonia gas, desalting, further reducing with magnesium and cooling. The flue gas that passed through the desalted flue gas was removed, and the flue gas sucked by the sirocco fan was adsorbed in the suction case.
The purified flue gas after desalination, desulfurization and denitrification is further washed with sorbet solution to carry out the remaining desalination, desulfurization, denitrification and decarboxylation. .
C. B. impregnated with an emulsion of a halogen compound and recycled. C. B, heat treatment method for halogen compounds.