WO1992000243A1 - Method for extraction of diamonds from a diamond-containing detonated charge - Google Patents

Abstract

A method for extraction of diamonds from a diamond-containing detonated charge provides for treating the charge with an oxidizing mixture of sulphuric and nitric acids at a temperature of 230-305 °C. The content of the nitric acid in the oxidizing mixture amounts to 5-40 per cent by weight. The weight ratio between the diamond-containing charge and the acid mixture is 1:25-50.

Description

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. DEPARTMENT OF TURNS The area of technology The growing invention is not available on the basis of the technology of 5 payments for the exploitation of diamonds.

The diamonds obtained by the decentralized synthesis are distinguished by the maximum particle size, the order of 5–50 nm, the greater the specificity of 450 UGS, the average

Some diamonds are found in a wide application as a dispersed phase in electric power distribution units. Χροм - diamond implements are processed by increased physical and mechanical properties and durability. Otherwise, 15 precious diamonds are successfully used as a part of the anti-oil lubricant panel.

The previous level of technology of diamond properties to a large extent depends to a large extent on the manner in which they are isolated. 0 Under the conditions of the synthesis, along with diamond particles, it will be a good deal. This is a metal, metal, and compound compound. Deliberate methods for the separation of diamonds are based on the value of liquid separation and oxidation of impurities and the separation of process materials. 5

The existing chemical methods for calculating synthetic diamonds from impurities, as a rule, include two stages:

- removal of metal impurities; 0 - oxidation of the group.

The most difficult task is to choose an environment that is environmentally friendly and that process is removed.

The method of calculating synthetic diamonds from the consumable metals and grades is known (J.I. The process of calculating is included in the processing of diamond-containing diamonds containing salted acid and storing it for 40 minutes. Received after processing, wash the acid and mix with the 50th grade - 2 - Chemically anhydride in sulfuric acid. The reactive mixture is boiled for 30 minutes, the crop is drained by hot water, dried, weighed, and classified. The main advantages of the method are the speed of oxidation of large quantities of the charge, a high degree of calculation. However, in this method they use a toxic oxidizer, which exists for the disposal of waste products. In the case of preheating of the reacted mixture (above 200 ° C), the product is insoluble in acids and alkaline liquids and is not suitable for the use of the obtained product. There is a method of calculating bright diamonds (vv, Α, 1365606), which does not imply the use of acid anhydride. The essence of the method is as follows. Diamond-containing material, including aggregates and magnetic alloys or alloys based on them, supports a chemical process. First, mixtures of sulfuric acid and nitric acid, taken in a weight ratio of 2: 5, with the aim of breaking the diamond-grout bonds. After washing the product, additionally process the salted acid and the temperature of the mixture, rinse it off and The obtained fractions of diamond processing products process saline or nitric acid or mixtures of them for metal processing. The magnetic product is divided into a gravitational processing for diamond and graphite.

There is a large number of stages, it is long in time, it is transported through the process of diamond particles.

Izvesτen still οdin sποsοb οchisτκi sinτeτichesκiχ Alma zοv (Cs, Α, 137,620), πο κοτοροmu almazsοdeρzhaschie προ- duκτy sinτeza οbρabaτyzayuτ mixture κοntsenτρiροvannyχ seρ- nοy and azοτnοy κislοτ, vzyaτyχ πρi vesοvοm sοοτnοshenii 2: 1, uslοviyaχ ποvyshennοgο pressure (200-250 atm).

For the sake of this, a 54-ml glass glass ampoule is filled with diamond-containing products, and the mixture is treated with an acidic mixture. Industrial grade diamond-containing product: the mixture of acids is I: (18- ^ 22) - 3 - interim. The module is sealed, placed in the other automatic closed-circuit autoclave and heated to 300 ° С for 10 hours. With this, pressures of 200-250 atmospheres develop.

The method is long in time. MAY BE EXTREMELY OPERATED. In addition, for the sake of the system to be handled, it is necessary to special equipment, working with pressure, there is a harsh condition for the organization of the process and the loss of service.

Ρasκρyτie izοbρeτeniya Β οsnοvu izοbρeτeniya ποlοzhena task sοzdaτ sπο- sοb almazοv allocation of almazsοdeρzhaschey deτοnatsiοnnοy shiχτy, κοτορy would ποzvοlil with vysοκοy προizvοdiτelnοsτgo vydelyaτ κοlichesτvennο diamonds almazsοdeρzhaschey shiχτy πο προsτοy τeχnοlοgii, isκlyuchaya πρimenenie vysοκοτοκsich- nyχ, vzρyvοοπasnyχ and dουοgοsτοyaschiχ maτeρialοv and sπetsi- alnοgο οbορudοvaniya.

Eτa task ρeshaeτsya τem, chτο πρedogagaeτsya τaκοy sπο- sοb allocation of almazοv almazsοdeρzhaschey shiχτy, vκlgachagoschy οbρabοτκu shiχτy οκisliτelnοy mixture seρnοy and azοτnοy κislοτ πρi nagρevanii and οτdelenie οsad- κa in κοτοροm, sοglaοnο izοbρeτeniyu, sοdeρzhanie azοτnοy κislοτy in οκisliτelnοy mixture sοsτavlyaeτ 5-40 wt. , the weight ratio of the diamond-containing mixture: the mixture of acids is 1: 25-50 and the process conducts at a temperature of 230-305 ° С.

Αlmazsοdeρzhaschaya shiχτa, vκlyuchayuschaya all προdzuκτy deτοnatsiοnnοgο sinτeza, πρedsτavlyaeτ sοbοy vysοκοdis- πeυsny ποροshοκ, sοdeρzhaschy in κachesτve οsnοvnyχ κοshο- nenτοv ashlaz, non-diamond modifications φορmy uτleροda and τeχnοlοgiches- κie πρimesi, glavny__g οbρazοm meτally and iχ sοedineniya. Comparison of the components depends on the complex technical conditions of the synthesis. On the other hand, a mixture of crystalline and solid carbon is contained in a mixture of carbon impurities. It is known that the mixing of mixtures of sulfur and nitric mixtures is used to isolate synthetic diamonds (Superficial materials, 2, 1982, p.24, Putins, R.I., I.I. - 4 - Kalashnikov Y.Α. , Chemical methods for the extraction of diamonds from synthetics) do not completely remove the mixture. This is explained by the low temperature of the mixtures of acids, large quantities of light-boiling liquids - nitrous acids, and

Sledοvalο οzhidaτ, chτο πρimenenie uκazannyχ οκisli- τelny ^χ mixtures οbρabοτκi almazsοdeρzhaschey deτοnatsiοnnοy shiχτy τaκzhe not ποzvοliτ dοbiτsya vysοκοgο κachesτva οchisτ-

Yu ki diamonds.

Οdnaκο οκazalοs, chτο πρimenenie sοvοκuπnοsτi zayavlya- emyχ uslοvy οbρabοτκi and imennο: vybρanny sοsτav οκis- liτelnοy mixture sοοτnοshenie τveρdyχ and zhidκiχ κοmποnen- τοv, τemπeρaτuρny ρezhim reference προtsessa, ποzvοlyaeτ bysτ- 5 ρο vydeliτ diamond from deτοnatsiοnnοy shiχτy with vysοκοy sτe- At the same time, there is no clear evidence of any major impurities.

This is indirectly related to the specific state of impurities in the wide. Partially non-diamond mine, the most inclined to oxidation, interacts with the aforementioned components

20 κislοτ mixture already πρi τemπeρaτuρaχ Ι00-ΙΙ0 ^ο C. Pρi eτοm initiated tsiiρueτsya προtsess dalneyshegο οκisleniya, κοτορy πρivοdiτ, πρi neοbχοdimοm nagρevanii, κ πρaκτichesκi ποlnοy gaziφi- κatsii nealmaznοgο uτleροda dο οκsidοv. At the same time, oxidative degradation of impurities of metals and mixtures occurs

25 compounds, the presence of a reactive mixture of metal compounds in a convenient, visible way, to exert a catalytic effect on the oxidation process of non-diamond treatment. Acid Acid under the claimed conditions of processing is subject to the strong oxidizer of the complex effect. Е ρабο-

30 Accessories in the indicated temperature range are ensured by the presence of sulfuric acid in the mixture.

The concentrated sulfuric acid performs the following functions:

-performance, is available as a carrier, with

35 accommodating processes are implemented for the temperature conditions of the oxidation of non-diamond deposits;

Secondly, it is a reactive medium that binds a basic oxidizing agent - nitric acid, as a result - 5 - that’s what acid acids are used for, the type of saline is nitric acid, and the fact that it’s worth the loss of speed is dependent on the situation. This makes it possible to store nitric acid in the active mixture while it is in active form while the whole process is in process.

Β-τρeτiχ, vzaimοdeysτvie κοntsenτρiροvannοy seρnοy κislοτy with gρaφiτοm πρi ποvyshennyχ τemπeρaτuρaχ in ιgρisuτ- sτvii οκisliτelya vyzyvaeτ deφορmatsiyu gρaφiτοvyχ sτυuκ- τuρ, chτο sοzdaeτ vnuτρi τveρdοgο τela naπρyazhennοe sοs- τοyanie that increases egο ρeaκtsiοnnuyu sποsοbnοsτ and οblegchayuschee further οκisdenie.

The purchased temperature range is optimal for the oxidative processing of impurities and the gasification of products.

Liquid acidification is ideal through the formation of interconnections, such as the United States, where χ is an oxidizing agent. Complete disruption of these connections to gaseous products of the reaction takes place at temperatures above 230 ° C.

The external temperature range of the 305 ° C active mixture corresponds to the maximum temperature reduction of the oxygen concentration of the product. Ηaρyadu with eκzοτeρmichesκim προtsessοm οκisleniya γτle-ρο- yes, ροsτοm τemπeρaτuρy in ρeaκtsiοnnοy mixture ^{'naρasτaeτ} endοτeυmichesκy προtsess ρazlοzheniya and vyκiπaniya azοτnοy κislοτy. In order to ensure the completion of the oxidative process, the reactive mixture must contain 5-40% of nitric acid. In the case where the oxidizing mixture contains less than 5% by weight of nitric acid, the complete removal of the carbonaceous impurities occurs. An increase in the concentration of nitric acid over 40 wt. Strongly dilutes the reactive mixture, reduces the heat absorption of the system, and thus reduces the energy consumption. Otherwise, excessive oxidation of the oxidizer when it is heated will result in an intensive increase of the power consumption.

Bulk mortar: an acid mixture of less than 1:25 leads to an increase in the viscosity of a mixture of a mixture of acids and acids, - 6 - and thereby deteriorating the conditions of the diffusion of the oxidizing agent to the particle size, the degree of calculating the diamond from the impurities is reduced.

5 Use of an acid of more than 50 parts by weight for I part is unprofitable;

10 The proposed method for isolating diamonds from diamonds containing chips can be implemented in a continuous and continuous version.

In order to intensify the process of diamond extraction, it is recommended to add sulfuric anhydride to the oxidative mixture.

15 in the amount of May 1–20.% Of the sulfuric acid content. With this, there is an additional dispersion of particles, the development of one-time high-volume suspensions is available in large quantities.

Exclusion of the oxidative mixture of sulfur

20 hydride significantly reduces the flow of nitric acid when boiling, increases the temperature of the boiling of the reaction mixture. This results in a reduction in the amount of diamonds obtained from the use of impurities and reduces the total consumption of acid. In practical preparations, oxidative mixtures are prepared,

25, for example, from eleutulum and nitric acid or oleum and a mixture of sulfuric acid and nitric acid. The commercially available small quantity of anhydride, and on behalf of 1-20 IE% of the content of sulfuric acid, is optimal. The content of gray anhydride over 20 wt does not lead to a further increase in

30 penalties.

Sometimes the diamond-containing circuit contains particles that have not been discontinued and soot and / or large quantities of metal that are not in the process of being separated

35 and increase the processing time. In this case, in order to increase the rate of computation, a diamond-holding ratio of 5-20% is recommended. solution - 7 -

acidic acid.

The processing of diamond-containing mineral wastes in the presence of boiling nitric acid leads to a decrease in the content of impurities. At the same time, the contact of particles with high speed, in addition to elevated tempera- tures is at the expense of access to the aids and therapies in the hospital. There is a "dispersal" of quicker discharges that will facilitate the subsequent oxidation. The use of the primary processing method results in a reduction in the rate of increase in weight by a factor of 1.5–2 (for widespread use).

In addition, the process of intensifying the process of metabolism increases, and the oxidative properties of nitric acid increase.

In order to increase προizvοdiτelnοsτi neπρeρyv- nοgο sποsοba, ποvysheniya sτeπeni οchisτκi, ποlucheniya aτzmazοv ποsτοyannοgο κachesτva, improving eκο- lοgichnοsτi προtseοsa ρeκοmendueτsya almazsοdeρzhaschuyu shiχτu with οκisliτelnο smesyο πρedvaρiτelnο HA gρevaτ dο τesheρaτuρy 110 - Ι80 ° C dο οbρazο- Bani πυοmezhuτοchnyχ πυοduκτοv οκisleniya γτπeνοda .. When this temperature is compromised in a proprietary system, an impaired condition is incurred in connection with a compromised storage environment. 06 The formation of the indicated compounds can be visual, due to a change in the color of the reactive mass, which is also black. The following thermal treatment (above 230 ° C) takes place at the same time as the intermediate - 8 - connection and complete gasification. When heated, diamond-containing mixes with an oxidizing mixture for temperatures of -0-80 ° C for an oxidized non-diamond coal yield 20-60% of the total energy consumed. The step 5th mode of heating leads to an increase in productivity by a factor of 3-10.

The proposed method makes it possible to isolate diamonds from a jazz-containing expensive chip with a high degree of calculation of the yield, such as diamonds, are distinguished

10 nye πρedlοzhennym sποsοbοm, οbladayuτ ρenτgenοvsκοi chisτο- τοΙ.Χimzhcheeκie meτοdy anazhza shyashιyayuτ in vydelvshyχ al Ξaχ sαga.τοch- nοe sοdeρzhanie ugleροddyχ πρimese (οκislyaemοgο ugleροda) and sοedineni meτallοv (as nesgορayuschegο οsτaτκa). The yield of diamonds is 95-99. Degree of calculation

15 Oxidized waste 94-99%, non-discharging waste

48-98%. The method is productive, it is easy to operate, and is subject to a non-discontinuous use. For its sake, there is no need for other profitable oxidizing agents and special equipment. Removal of the main πρime-

20 is reached in one stage. When the process is used in a continuous mode with the use of a preheating mixture, the process is supplied with an oily substance

25 Better variant of the method of allocation of diamonds from diamond-bearing business in the case of a commercial use, the following is a share of the following:

30 Β emκοsτnο ρeaκτορ of neρzhaveyuscheϊ sτali, ny snabzhen- meχanichesκο meshalκοi, τeπlοοθmenniκοm, τeρmοmeτ- ροm and outer οbοgρevοm, naπρimeρ, lenτοchnym nagρevaτe- Lemma, zagρuzhayuτ almazsοdeρzhaschuyu shiχτu and the mixture κislοτ or seρnuyu κislοτu and azοτnuyu κislοτu οτdelnο, πeρemeshivayuτ

35 and heat to the selected temperature. At the end of the process, they judge the change in the color of the reactive mixture from the black one. Diamonds are well-known, for example, in the central field. Wash the water. Reproduction - 9 - Departments replenish many large divisions of acid. Βydelennye diamonds mοguτ byτ as susπenzii or πasτy with vlazhnοsτyu, neοb ^χ οdimο for DA-alneΙshegο used ποlzοvaniya or ποροshκa. Separate Exit. I analyze 5 of them.

In the case of the use of sulfuric anhydride, it is only possible to add it to the oxidizing mixture or, in addition, to other components in the oxidizing agent. The processing of diamond is relatively easy to consume, because of the fact that it is disposed of with nitric acid which, in turn, mixes and mixes the heat. The duration of the boil usually does not exceed 2 hours and is dependent on the availability of the mixture and the concentration of the acid in the solution. 15 At the end of heating, the mixture is separated by known methods, for example, by centrifuging, and by processing the indicated oxidizing mixtures in the modes described above.

In order to ensure the isolation of diamonds in a non-exhaustive mode, the mixture of diamonds containing acids is carried out in an intermediate manner. Then, with the use of an accessory device, for example, it is only possible to clean the process with a predetermined mixture from the process medium. 5 USE OF APPLICABLE CAPACITIVE PROCESSES OF OPERATING TYPE OPERATING IN OPERATION The facility is equipped with a hot-swappable, thermo-regulated and regulated external heating. With the creation of an industrial technology for the extraction of diamonds, the most advantageous scheme is the process, 0 including the connection between the two processing units.

In the event of a short circuit, there is a pre-heating of the circuit and an oxidizing mixture in the temperature range of -80 ° C. Then, the convergent process converts to the second process. - 10 -

In addition, at a temperature of 230-305 ° C, complete destruction of the oxidation products is possible.

The active mixture, upon termination of the oxidative treatment, is separated in the central field. Diamonds wash away acid and salts, achieving non-normal ρΕ values, are isolated in the form of a suspension or stock with moisture, it is necessary for further use, or drying. Separate Exit. I am analyzing. The grade of diamonds from the impurities is calculated

C - C πο φουmule 1 2 _{# Ι00} ^ _{ρde C]} . _and ο ₂ _ the content of the mixture (non-combustible waste or oxidized waste) in the original and selected diamonds, respectively, expressed in wt.%.

The content of the non-flammable waste is controlled by the burning of hinged diamonds at a temperature of 700-800 ° С. The content of the acidified product separates the known methods, for example, by oxidizing a hinged amount of diamonds in a biochemistry source of acid.

For the sake of better understanding of the invention, the following specific examples are given. Example I.

Κ 1000 grams of composition: 551 grams of ayamaz 351 grams of acidified food

38 g of non-flammable residual residual - easy to grow 35,000 g of oxidative mixture, containing

29400 g of sulfuric acid 5600 g of nitric acid, and heat up to a temperature of 280 ° C. At the end of the process, which judges the change in the color of the reactive medium, the diamonds separate the processed acid from the center. The resulting plants dissolve the water, mix and separate the phases in the central run.

Separation and separation of the phase transfer the neutral value of the removed liquid phase to the generation of a neutral value. - II -

The yield of diamonds is 97.5%. The deduction rate of diamonds from oxidized coal is 95.1, and non-depleted waste is 48.0%. Example 2. 5 1000 g of the composition: 551 g of diamonds

351 g of oxidizable carbon 38 g of non-combustible residual other - volatiles mix with 40,000 g of 5-new waste of nitric acid. The resulting mixture is thoroughly mixed and heated until the mixture is boiled. They are boiling for 2 hours. After settling, the precipitates are separated on a centrifuge and mixed with 23750 g of sulfuric acid and 1250 g of nitric acid. The mixture is continuously fed into the first reaction and heated to a temperature of 15 ° C. With this, a change in the color of the mixture occurs before the primary. Then, the mixture is removed from the reactor, where a temperature of 280 ° C is maintained. This is a matter of direct separation of products, and this is the result of a change in color due to 0. Eyes share the method described in Example I.

The yield of diamonds is 97.3%. The degree of deduction from oxidized waste is 98.4%, while non-depleted surplus is 83.7%. 5 Example 3.

1000 grams of composition: 275 grams of diamonds

560 g of oxidizable carbon 80 g of non-flammable residual material - volatile 0 mixes 15,000 g of sulfur and 10,000 g of acid. Carefully mix the mixture thoroughly and heat to a temperature of 290 ° С. At the end of the processes, which is the reason for the change in the color of the treated mass, diamonds separate the processed acid described in 99% of diamonds. 5%.

The degree of profitability is 97.9%, non-depleted waste is 90.5%. - -

Example 4.

Κ 1000 g of board, containing 356 g of diamonds

543 g of acidic acid 79 g of non-flammable waste 5 Other - volatiles add 50,000 g of an acid mixture, consisting of 10,000 g of nitrogen and 40,000 g of acid. The resulting reaction mixture is carefully mixed and heated to a temperature of 230 ° C. At the end of the process, which is the reason for the change in color of the pulp - 10 pulp masses, diamonds are separated from the centrifuge and washed away from other minerals.

The yield of diamonds is 98.3%. The calculation rate is 98.6%, 15 are non-combustible 86.6%.

Example 5. 1000 g of composition Composition: 106 g of diamonds

745 g of oxidized carbon 145 g of non-quicking waste 20 the rest is volatile; The resulting mixture is heated to a boiling temperature, and it is processed for 2 hours. After processing, it separates 25 UT from the liquid phase at the center and places it in the oxidation process. Ρ Reactivate and consume a constant stirrer of 22500 g of olezgum, containing 4500 g of sulfuric anhydride, and 2500 g of acid. A compatible process is heated to a temperature of 305 ° C. At the end of the reaction, 30 than judging by the change in the color of the reactive environment, diamonds separate acid and clean the water, do not wash out the other values. The yield of diamonds is 95.7%. The degree of calculation of oxidized carbon is 99.4%, 35 of which is not upstream 86.6%.

Example 6. 1000 grams of composition: 776 grams of diamonds

101 grams of depleted product 76 grams of non-combustible waste 40 other - * volatile - 13 - mix with 23750 g of sulfur and 1250 g of nitric acid. The resulting mixture is thoroughly mixed, with the help of a quick pump, it is continuously discharged to the process and heat up to 80 ° C. At the same time, a change in the color of the mixture occurs before the main one. Then, the mixture is discharged by a second reaction, where, at a temperature of 280 ° C, the separation of the gas is avoided. At the end of the process, which judges the change in the color of the reactive mass to the light, diamonds share the method described in Example I.

The yield of diamonds is 99.4%. The degree of calculation of oxidized carbon is 94.4%, and it is 79.8% of waste. Example 7.

1000 g of composition Composition: 450 g of diamonds

457 g of oxidizable carbon 51 g of non-combustible residual other - volatiles are mixed with 35,000 g of oleum containing I wt.% 50 ₃ . Смеси The resulting mixture adds 5250 g of nitric acid, mix thoroughly, and the product is inaccessible to the With this, a change in the color of the mixture occurs before the primary. Then, the mixture is discharged to a second reaction, where at a temperature of 305 ° C, there is a separation of the hydrocarbon discharges. At the end of the process, which is the reason for the change in the color of the reactive mass to light, diamonds separate from the process described in Example I. 97% of diamonds. The degree of profitability is 98.8%, non-depleted surplus 74.5%. Example 8. 1000 g of composition Composition: 106 g of diamonds

745 g of oxidizable carbon 145 g of non-combustible residual residual - agate - 14 - mix in the process with 50,000 g of 10-percent solution of nitric acid and heat for 1.5 hours at the boil of the mixture. The homeopathic food is separated from the centrifuge and mixed at the center and mixed with 20ΙΙ0 g of oleum, 5 of which contains 3620 g of anhydrous and anhydrous. The mixture is continuously supplied to reactants and heated to a temperature of °0 ° С. With this, a change in the color of the mixture occurs before the primary. Then, the mixture is emptied, and the inlet is turned on, where the temperature of 295-300 ° С is maintained. The non-reactive mixture changes the color to light, which means that the process of oxidation of impurities is completed. The division of allases belongs to the method described in Example I.

The yield of diamonds is 95.0%. 15 Degree of profitability of 99.6%, and non-depleting waste of 98.5%. Example 9. 1000 grams of the composition: 776 grams of diamonds

101 g of oxidizable hydrocarbon 20 76 g of non-flammable residue, the rest - volatile mix with 30,000 g of an oxidizing mixture, containing 28,500 g of sulfuric acid and 1,500 g of nitric acid. The resulting mixture was heated to a temperature of 260 ° C. According to the conclusion of the process, which is the reason for the change in the color of the mixture to a light, gray diamonds are centered. The obtained plants dilute the water, mix and separate the phases in the center of the run. Flushing and separation of phases does not result in irradiation of values of 30 removable and liquid phases.

The diamond output is 98.5%.

The degree of calculation of oxidized carbon is 94.3%, while non-combustible waste is 84.7%. Example 10. 35 1000 g of composition: 430 g of diamonds

457 grams of oxidizable fat 51 grams of non-combustible residual residual - volatile - fifteen -

mix with 40,000 g of an oxidizing mixture containing 7200 g of nitric acid and 32800 g of sulfuric acid.

The resulting reacted mixture is heated to a temperature of 5 ° at 305 ° C. At the end of the process, diamonds separate the acids described above in the process. The yield of diamonds is 99.0%. The degree of calculation of the deductible 95.1%, non-incinerating 71.8%.

10 Intended use

Diamonds isolated from diamond-containing debris are not burned, they do not contain free coal, metal and minerals are not used.

15 optional materials, chemical and electrical products, injuries.

Claims

- 16 - ΦΟΡШГΑ IZΟΕΡΕΤΕΗIA 1. The method of separation of diamonds from diamonds is more costly, including the processing of oxides 5 with a mixture of sulfuric acid and nitric acid during heating and separation of the precipitate, the chemical effluent, and I with it, that is, the combination of nitric acid in the oil mixture is 5. , the weight ratio of the diamond-containing mixture of acid composition 10 yields 1: 25–50, respectively, and the process conducts at a temperature of 230–305 ° С. 2. The method of production, which is chemically excipient, is that the oxidizing mixture additionally contains anhydrous acid in the amount of 1-20 wt.% Of the total quantity of acid. 15 burning acid. 3. The method is simple, because it is diaphragm-friendly, which is predominantly used in the processing of solvents. 4. Sποsοb πο lyubοmu of πunκτοv 1-3, χ and ρ and κ- 20 τ ρ e and s th soup ο I τem, chτο, in the case reference προtsessa in neπρeρyvnοm ρezhime, ayamazsοdeρzhaschuyu shiχτu with οκisliτelnοi mixture πυedvaυiτelnο nagρevayuτ dο τem- πeρaτuρy P0-Ι80 ^ο Convenient

degradation of acidification.