EP0728175A1 - Verfahren zur dechlorierung einer altölfraktion - Google Patents
Verfahren zur dechlorierung einer altölfraktionInfo
- Publication number
- EP0728175A1 EP0728175A1 EP95930569A EP95930569A EP0728175A1 EP 0728175 A1 EP0728175 A1 EP 0728175A1 EP 95930569 A EP95930569 A EP 95930569A EP 95930569 A EP95930569 A EP 95930569A EP 0728175 A1 EP0728175 A1 EP 0728175A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dechlorination
- oil
- chlorine
- composition
- used oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000006298 dechlorination reaction Methods 0.000 title claims description 31
- 238000000034 method Methods 0.000 title claims description 19
- 239000010913 used oil Substances 0.000 claims description 33
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 31
- 239000000460 chlorine Substances 0.000 claims description 31
- 229910052801 chlorine Inorganic materials 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 27
- 239000003921 oil Substances 0.000 claims description 22
- 150000001875 compounds Chemical class 0.000 claims description 13
- 238000004821 distillation Methods 0.000 claims description 12
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 10
- 239000000292 calcium oxide Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000003472 neutralizing effect Effects 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 238000005292 vacuum distillation Methods 0.000 claims description 6
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
- 230000000382 dechlorinating effect Effects 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- 239000003463 adsorbent Substances 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 2
- 229910052749 magnesium Inorganic materials 0.000 claims 2
- 239000011591 potassium Substances 0.000 claims 2
- 229910052700 potassium Inorganic materials 0.000 claims 2
- 229910052708 sodium Inorganic materials 0.000 claims 2
- 238000003303 reheating Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000001805 chlorine compounds Chemical class 0.000 description 3
- 238000005194 fractionation Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 229910001948 sodium oxide Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0016—Working-up used lubricants to recover useful products ; Cleaning with the use of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
- C10G25/006—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents of waste oils, e.g. PCB's containing oils
Definitions
- the present invention relates to a process for dechlorinating a fraction of used oil.
- used lubricating oils recovered in garages or service stations, represent very large tonnages, which, for France, amount to 100,000 tonnes, for example 120,000 tonnes per year.
- the present invention therefore aims to reduce the chlorine content of used oils to a rate compatible with recycling operations in refineries of these oils and it proposes, for this purpose, to use solid composite products capable of fixing the chlorinated ions. , already known in the art for other applications and under different conditions of use.
- chlorine traps based on alumina or metal oxides or metal hydroxides such as CaO, Na 2 0, K 2 0, MgO, as well as the corresponding hydroxides, for eliminating the chlorine present in the liquid or gaseous flows of process units, in particular in reforming or isomerization units.
- compositions have, in general, a particle size of the order of 0.5 to 3 mm and they usually neutralize the chlorine by adsorption. They are generally used at ambient temperature or of the order of at most 100 ° C. and at atmospheric pressure, and they usually retain about 15% of the chlorine present in the treated charges.
- the Applicant has established that such chlorine traps are particularly well suited to a partial dechlorination operation of used oils, upstream of any recycling operation in a refinery, in particular of vacuum distillation, and that, unexpectedly, their chlorine fixing power increases significantly with the temperature of the treated oils, the chlorine trap being able to retain at least 40% of the chlorine present in the treated oil at a temperature between 300 and 400 ° C. and at atmospheric pressure. As will be seen below, it is naturally possible to operate at different temperatures and / or pressures.
- the invention therefore relates to a process for dechlorinating a fraction of used lubricating oil, optionally in admixture with another hydrocarbon feed, this process being characterized in that, upstream of a recycling operation in used oil refinery, the used oil is subjected to an at least partial dechlorination operation by passing over a bed of particles of a neutralizing composition by adsorption containing, as active compound capable of fixing the chlorine at least one oxide of 'a metal belonging to groups I and II of the Periodic Table and / or at least one hydroxide of a metal belonging to groups I and II of the Periodic Table.
- the active compound of the neutralizing composition will be a calcium, magnesium, sodium or potassium oxide, or alternatively a calcium, magnesium, sodium or potassium hydroxide. Even more preferred active compounds are calcium oxide and calcium hydroxide.
- the dechlorination phase will be carried out under conditions such that at least 40% and, preferably, 60% of the amount of chlorine present in the used oil is retained by the neutralizing composition by adsorption.
- These conditions are, for example, the following: a temperature of at least 150 ° C and, preferably, of the order of 400 ° C, an hourly space velocity of the used oil of 0.5 hi (volume d used oil, by volume of adsorbent and per hour) and a pressure substantially equal to atmospheric pressure.
- the used oil prior to the dechlorination operation, will be subjected to an atmospheric distillation phase at a temperature of 300 to 400 ° C in order to remove the water and the light solvents which it contains, and the dechlorination operation will be carried out on the used oil coming from this atmospheric distillation, possibly after heating of this oil, for example by heat exchange, to increase the efficiency of the dechlorination.
- the used oil thus dechlorinated may then be subjected, for example, to vacuum distillation, preferably in admixture with another charge, such as an atmospheric distillation residue, with a view to separating in particular from gas oil under vacuum. , a vacuum distillate and a bituminous vacuum residue, without the formation, as is usual at this stage, of hydrochloric acid responsible for marked corrosion in the installations.
- the dechlorination compositions used in the process of the invention are well known in the art and generally contain at least 25% by weight of active compound. They are marketed, for example, under the trade names TRAP'IT by the Company Catalysts and Chemicals Europe, SELEXSORB HC1 by the Company ALCOA, and DISCOVERY ALUMINAS by the Company Dycat International.
- the preferred composition for carrying out the invention is that sold under the name TRAP'IT, which contains, in% by weight, from 23.0 to 27.0% of CaO, constituting the active product, and 43 to 53.0% zinc oxide, serving as a support, the complement to 100% consisting of a binder.
- TRAP'IT which contains, in% by weight, from 23.0 to 27.0% of CaO, constituting the active product, and 43 to 53.0% zinc oxide, serving as a support, the complement to 100% consisting of a binder.
- This composition generally has an apparent specific mass of 0.720 to 0.800 cm 3 / g, a pore volume of 0.35 to 0.45 cm Vg and a specific surface of at least 22 m2 / g.
- She is usually in the form of rods with a diameter of 1.2 to 1.8 mm and a length of about 4.0 to 12.0 mm.
- Figure 1 is a general diagram illustrating this form of implementation of the method
- FIG. 2 is a diagram illustrating the increase in the dechlorination rate, expressed in%, as a function of the temperature, expressed in ° C.
- the used oil to be treated arriving via line 1, is first of all topped, by atmospheric distillation, in a column 2.
- the water present in the used oil (4 to 10% by weight) is evacuated at the head of the column by line 3, while the light solvents are evacuated by line 4.
- the chlorine trap contained in the flask 6 retains about 60% of the chlorine present in the used oil, and the treated oil, which contains only about
- 200 ppm of chlorine is evacuated via a line 8 in the direction of a vacuum distillation column 9, into which it is introduced, for example, with an atmospheric distillation residue arriving via line 10.
- the chlorine content of the treated oil is compatible with the conditions of vacuum distillation, which takes place without any particular risk of corrosion due to the formation of hydrochloric acid in column 9.
- Example 1 which follows relates to an application of the method according to the invention using the device of FIG. 1, it being understood that other forms of implementation are within the scope of the invention.
- Example 2 illustrates the improvement in the dechlorination of the treated oil as the temperature of the dechlorination treatment rises.
- Example 1 This example relates to the treatment, in the device of FIG. 1, of a used oil having the following characteristics: - density: 909.9 kg / m 3 ,
- This oil is subjected in column 1 to atmospheric distillation under the following conditions: transfer temperature: 360 ° C., atmospheric pressure.
- TRAP'IT registered trademark
- the oil leaving balloon 6 via line 8 now contains only 123 ppm by weight of chlorine and 62% of the chlorine present in the oil at the inlet of balloon 6 have therefore been fixed and retained by the composition TRAP'IT .
- the oil thus partially dechlorinated is then mixed with an atmospheric distillation residue, in the following proportions 7/100 by weight, and the mixture is introduced into the vacuum distillation tower 9, where it is processed under the following conditions:
- Diesel oil chlorine content ⁇ 50 ppm
- Vacuum distillate chlorine content ⁇ 3 ppm
- Vacuum residue chlorine content 15 ppm.
- the hydrochloric acid content at the top of the column is determined by measuring the chlorides in the condensing water and it is found that the dechlorination of the used oil makes it possible to reduce the chloride content in the overhead water up to '' below 20 mg / 1 and the pH is around 5 to avoid any problems.
- Example 2 This example aims to show the advantage of carrying out the dechlorination operation at a temperature as high as possible.
- the dechlorination phase is preferably carried out at around 350 ° C.
- the composition of DYCAT 115, in% by weight, is given in Table II below.
- the DYCAT 115 is in the form of spheres of approximately 3 to 5 mm in diameter. TABLE II
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Lubricants (AREA)
- Fats And Perfumes (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9410899 | 1994-09-13 | ||
| FR9410899A FR2724391A1 (fr) | 1994-09-13 | 1994-09-13 | Traitement de dechloration d'une fraction d'huile usee |
| PCT/FR1995/001162 WO1996008546A1 (fr) | 1994-09-13 | 1995-09-11 | Procede de dechloration d'une fraction d'huile usee |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0728175A1 true EP0728175A1 (de) | 1996-08-28 |
| EP0728175B1 EP0728175B1 (de) | 1999-11-10 |
Family
ID=9466887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95930569A Expired - Lifetime EP0728175B1 (de) | 1994-09-13 | 1995-09-11 | Verfahren zur dechlorierung einer altölfraktion |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5783068A (de) |
| EP (1) | EP0728175B1 (de) |
| JP (1) | JP4027417B2 (de) |
| AT (1) | ATE186563T1 (de) |
| CA (1) | CA2176210C (de) |
| DE (1) | DE69513277T2 (de) |
| FR (1) | FR2724391A1 (de) |
| WO (1) | WO1996008546A1 (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6196458B1 (en) * | 1997-12-01 | 2001-03-06 | Walker Digital, Llc | Method and apparatus for printing a billing statement to provide supplementary product sales |
| US6026368A (en) * | 1995-07-17 | 2000-02-15 | 24/7 Media, Inc. | On-line interactive system and method for providing content and advertising information to a targeted set of viewers |
| FR2757873B1 (fr) * | 1996-12-31 | 1999-03-19 | Total Raffinage Distribution | Procede de regeneration d'une fraction d'huile lubrifiante usee |
| US6106699A (en) * | 1997-04-29 | 2000-08-22 | Probex | Process for de-chlorinating and de-fouling oil |
| US8838574B2 (en) * | 2006-06-09 | 2014-09-16 | International Business Machines Corporation | Autonomic index creation, modification and deletion |
| US20080027252A1 (en) * | 2006-07-27 | 2008-01-31 | Burkholder Kermit L | Oil dehalogenation method |
| US20120325724A1 (en) * | 2011-06-27 | 2012-12-27 | Driver Michael S | Recovery of alkyl chloride adsorbtion capacity by basic solution treatment of spent adsorbent |
| JP6952105B2 (ja) | 2016-08-01 | 2021-10-20 | サビック グローバル テクノロジーズ ベスローテン フェンノートシャップ | 脱揮押出および塩化物掃去剤を用いた混合プラスチック熱分解油の脱塩素 |
| CN107892990B (zh) * | 2017-11-14 | 2020-11-13 | 新疆聚力环保科技有限公司 | 一种废矿物油全氢型再生生产高档润滑油基础油的方法 |
| CN108587765B (zh) * | 2018-06-06 | 2021-02-26 | 武汉科林化工集团有限公司 | 一种废润滑油再生优质基础油的预处理工艺 |
| CN108587766B (zh) * | 2018-06-06 | 2021-03-19 | 武汉科林化工集团有限公司 | 一种无污染的废润滑油连续再生预处理工艺 |
| CN110548479A (zh) * | 2019-10-03 | 2019-12-10 | 武汉禾谷环保有限公司 | 一种高强度液相脱氯剂及其制备方法和应用 |
| WO2021213991A1 (en) | 2020-04-20 | 2021-10-28 | N.V. Desmet Ballestra Engineering S.A. | Versatile method for purifying glyceridic materials |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2481300A (en) * | 1943-08-10 | 1949-09-06 | Shell Dev | Process for purifying hydrocarbons |
| AT262479B (de) * | 1965-10-21 | 1968-06-10 | Oemv Ag | Verfahren zur Aufarbeitung von gebrauchten Schmierölen |
| US3761534A (en) * | 1971-12-29 | 1973-09-25 | Dow Chemical Co | Removal of acidic contaminants from process streams |
| DE2508713C3 (de) * | 1975-02-28 | 1979-04-12 | Adolf Schmids Erben Ag, Bern | Verfahren zur Aufarbeitung von gebrauchtem Mineralöl |
| DE2818521A1 (de) * | 1978-04-27 | 1979-11-08 | Degussa | Verfahren zur wiederaufbereitung von gebrauchten schmieroelen (ii) |
| US4612404A (en) * | 1982-05-24 | 1986-09-16 | Thyagarajan Budalur S | Process for treatment of fluids contaminated with polychlorinated biphenyls |
| DE3443722A1 (de) * | 1984-11-30 | 1986-06-12 | Foerster Guenther | Verfahren zur thermischen beseitigung von halogenverbindungen, insbesondere dioxine, phosgen und polychlorierte biphenyle bildende chlorverbindungen enthaltenden abfaellen sowie wirbelschicht-reaktor zu seiner durchfuehrung |
| US4639309A (en) * | 1985-09-18 | 1987-01-27 | Hydro-Quebec | Process for the dehalogenation of polyhalogenated hydrocarbon containing fluids |
| US5096600A (en) * | 1990-04-30 | 1992-03-17 | Sdtx Technologies, Inc. | Method for decontaminating soils |
| CA2068905C (en) * | 1992-05-19 | 1997-07-22 | Terry A. Wilson | Waste lubricating oil pretreatment process |
-
1994
- 1994-09-13 FR FR9410899A patent/FR2724391A1/fr active Granted
-
1995
- 1995-09-11 US US08/646,234 patent/US5783068A/en not_active Expired - Fee Related
- 1995-09-11 AT AT95930569T patent/ATE186563T1/de not_active IP Right Cessation
- 1995-09-11 CA CA002176210A patent/CA2176210C/fr not_active Expired - Fee Related
- 1995-09-11 DE DE69513277T patent/DE69513277T2/de not_active Expired - Fee Related
- 1995-09-11 JP JP50994696A patent/JP4027417B2/ja not_active Expired - Fee Related
- 1995-09-11 EP EP95930569A patent/EP0728175B1/de not_active Expired - Lifetime
- 1995-09-11 WO PCT/FR1995/001162 patent/WO1996008546A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9608546A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69513277D1 (de) | 1999-12-16 |
| ATE186563T1 (de) | 1999-11-15 |
| WO1996008546A1 (fr) | 1996-03-21 |
| FR2724391B1 (de) | 1997-02-21 |
| CA2176210A1 (fr) | 1996-03-21 |
| JPH09507878A (ja) | 1997-08-12 |
| EP0728175B1 (de) | 1999-11-10 |
| US5783068A (en) | 1998-07-21 |
| CA2176210C (fr) | 2007-11-13 |
| JP4027417B2 (ja) | 2007-12-26 |
| FR2724391A1 (fr) | 1996-03-15 |
| DE69513277T2 (de) | 2000-05-11 |
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