CN1040995C - 再精炼废油的方法 - Google Patents
再精炼废油的方法 Download PDFInfo
- Publication number
- CN1040995C CN1040995C CN93118174A CN93118174A CN1040995C CN 1040995 C CN1040995 C CN 1040995C CN 93118174 A CN93118174 A CN 93118174A CN 93118174 A CN93118174 A CN 93118174A CN 1040995 C CN1040995 C CN 1040995C
- Authority
- CN
- China
- Prior art keywords
- oil
- tower
- preflash
- separation column
- heavy
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 65
- 230000008569 process Effects 0.000 title claims abstract description 19
- 239000010913 used oil Substances 0.000 title claims abstract description 10
- 239000003921 oil Substances 0.000 claims abstract description 103
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 238000000746 purification Methods 0.000 claims abstract description 10
- 239000002699 waste material Substances 0.000 claims description 31
- 238000004821 distillation Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 12
- 238000005194 fractionation Methods 0.000 claims description 10
- 239000004927 clay Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 238000002203 pretreatment Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 230000002195 synergetic effect Effects 0.000 claims description 2
- 238000011282 treatment Methods 0.000 abstract description 6
- 229920000642 polymer Polymers 0.000 abstract description 5
- 239000002199 base oil Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004042 decolorization Methods 0.000 abstract 1
- 238000004508 fractional distillation Methods 0.000 abstract 1
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 34
- 239000007789 gas Substances 0.000 description 27
- 239000007788 liquid Substances 0.000 description 24
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 18
- 239000001294 propane Substances 0.000 description 17
- 238000007670 refining Methods 0.000 description 15
- 239000002253 acid Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 11
- 239000012071 phase Substances 0.000 description 10
- 239000010802 sludge Substances 0.000 description 7
- 241000231739 Rutilus rutilus Species 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 239000007791 liquid phase Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 150000002632 lipids Chemical class 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000007127 saponification reaction Methods 0.000 description 3
- 241000282326 Felis catus Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 150000002605 large molecules Chemical class 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 241001425930 Latina Species 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229920006158 high molecular weight polymer Polymers 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- MNSQHAJNUHHTLE-UHFFFAOYSA-N propane;sulfuric acid Chemical compound CCC.OS(O)(=O)=O MNSQHAJNUHHTLE-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
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
-
- 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
- C10M175/0008—Working-up used lubricants to recover useful products ; Cleaning with the use of adsorbentia
-
- 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
- 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
- C10M175/0025—Working-up used lubricants to recover useful products ; Cleaning by thermal processes
-
- 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
- C10M175/0025—Working-up used lubricants to recover useful products ; Cleaning by thermal processes
- C10M175/0033—Working-up used lubricants to recover useful products ; Cleaning by thermal processes using distillation processes; devices therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Fats And Perfumes (AREA)
- Lubricants (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI922271A IT1255534B (it) | 1992-09-30 | 1992-09-30 | Processo di riraffinazione di oli usati |
| ITMI92A002271 | 1992-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1086252A CN1086252A (zh) | 1994-05-04 |
| CN1040995C true CN1040995C (zh) | 1998-12-02 |
Family
ID=11364046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93118174A Expired - Lifetime CN1040995C (zh) | 1992-09-30 | 1993-09-29 | 再精炼废油的方法 |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP0618959B1 (da) |
| CN (1) | CN1040995C (da) |
| AT (1) | ATE180009T1 (da) |
| CZ (1) | CZ287418B6 (da) |
| DE (1) | DE69324905T2 (da) |
| DK (1) | DK0618959T3 (da) |
| EG (1) | EG20181A (da) |
| ES (1) | ES2132258T3 (da) |
| GR (1) | GR3030648T3 (da) |
| HU (1) | HU213650B (da) |
| IT (1) | IT1255534B (da) |
| PL (1) | PL171473B1 (da) |
| RU (1) | RU2099397C1 (da) |
| SA (1) | SA95150447B1 (da) |
| TJ (1) | TJ335B (da) |
| WO (1) | WO1994007798A1 (da) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1002122B (en) * | 1995-02-28 | 1996-02-06 | Intemaco Ae | Technology/method of old waste mineral oils distillation and slops for the production of oil by-products, like light hydrocarbon (gasoline-diesel) and heavy hydrocarbons (mineral oils fractions) etc. arrangement and specialization of machinery. |
| KR0171501B1 (ko) * | 1996-08-28 | 1999-03-20 | 이성래 | 폐유 재생 장치 및 방법 |
| FR2757175B1 (fr) * | 1996-12-13 | 1999-03-05 | Tunisienne De Lubrifiants Sotu | Procede et installation de regeneration d'huiles lubrifiantes a hautes performances |
| DE19837276B4 (de) * | 1998-08-18 | 2008-09-04 | ECO IMPACT Brüske Gesellschaft für Umwelttechnik und Apparatebau mbH | Verfahren und Vorrichtung zum Destillieren und Cracken von Altölen |
| AU2002220080B2 (en) * | 2000-11-03 | 2005-03-17 | Sanford P. Brass | Process for reduction of emissions in asphalt production |
| FR2819522B1 (fr) * | 2001-01-18 | 2005-07-08 | Ecolsir Srl | Procede de dehalogenation et de regeneration d'huiles minerales dielectriques et diathermiques contaminees |
| FR2821084B1 (fr) * | 2001-02-16 | 2005-03-11 | Pablo Soc | Procede de production d'energie a partir d'un melange de dechets contenant des hydrocarbures |
| BR0215816B1 (pt) | 2002-07-15 | 2012-11-27 | processo para a refinação de óleos de petróleo usados por extração com solventes alifáticos. | |
| AU2003239858A1 (en) * | 2003-05-09 | 2004-11-26 | A. And A. Fratelli Parodi S.R.L. | Apparatus and method for the regeneration of quenching oils |
| RU2243254C1 (ru) * | 2003-08-19 | 2004-12-27 | Аксенов Александр Николаевич | Способ утилизации отработанного моторного масла |
| ES2199697B1 (es) | 2003-09-23 | 2005-02-01 | Sener Grupo De Ingenieria, S.A. | Procedimiento para regenerar aceites usados por desmetalizacion y destilacion. |
| ES2238000B1 (es) * | 2004-01-19 | 2006-11-16 | Industrial Management S.A. | Un procedimiento de obtencion de sulfonatos de petroleo y aceites blancos de calidad tecnica. |
| US7976699B2 (en) | 2006-06-16 | 2011-07-12 | Kesler Michael L | Distillation apparatus and method of use |
| RU2415175C2 (ru) * | 2009-06-23 | 2011-03-27 | Закрытое Акционерное Общество "Твин Трейдинг Компани" | Способ фильтрации трансформаторного масла и устройство для его осуществления |
| WO2012036581A1 (ru) * | 2010-09-14 | 2012-03-22 | Закрытое Акционерное Общество "Твин Трейдинг Компани" | Способ фильтрации трансформаторного масла и устройство для его осуществления |
| CN102226101B (zh) * | 2011-05-23 | 2013-12-04 | 开县双兴再生能源有限公司 | 废油冶炼分馏装置 |
| CN102492536A (zh) * | 2011-12-21 | 2012-06-13 | 安徽国孚润滑油工业有限公司 | 一种废机油的再生方法 |
| US20140257008A1 (en) * | 2013-03-07 | 2014-09-11 | Verolube, Inc. | Method and apparatus for recovering synthetic oils from composite oil streams |
| MX2016005893A (es) | 2013-11-08 | 2016-08-17 | Sener Ing & Sist | Proceso para aumentar el rendimiento de bases lubricantes en la regeneracion de aceites usados. |
| WO2015107539A2 (en) * | 2013-12-18 | 2015-07-23 | Reliance Industries Limited | System and method for treatment of flash vapours sent to a crude distillation column |
| CN104830515A (zh) * | 2015-04-21 | 2015-08-12 | 于胜宾 | 一种废润滑油的再生方法 |
| ITUB20151298A1 (it) * | 2015-05-28 | 2016-11-28 | Itelyum Regeneration S R L | Procedimento di rigenerazione di olii usati |
| ITUB20150917A1 (it) | 2015-05-28 | 2016-11-28 | Viscolube S R L | Processo per la rigenerazione di olii usati |
| IT201700042853A1 (it) * | 2017-04-19 | 2018-10-19 | Viscolube S R L | Processo per la rigenerazione di olii usati |
| TN2017000484A1 (fr) * | 2017-11-20 | 2019-04-12 | Soc Tunisienne De Lubrifiants Sotulub | Amélioration du procédé de regénération des huiles usagées avec respect de différents aspects environnementaux. |
| CN110669549A (zh) * | 2019-09-26 | 2020-01-10 | 南通市泓正再生资源有限公司 | 一种废矿物油再生回收处理方法 |
| IT202000001357A1 (it) * | 2020-01-24 | 2021-07-24 | Itelyum Regeneration S P A | Valorizzazione dei sottoprodotti di un processo di rigenerazione di olii usati |
| CN115820296B (zh) * | 2022-11-21 | 2024-08-13 | 安徽嘉瑞环保科技有限公司 | 一种废矿物油回收处理系统 |
| CN115746898A (zh) * | 2022-11-21 | 2023-03-07 | 安徽嘉瑞环保科技有限公司 | 一种废油处理系统用旋风管式反应器及其处理方法 |
| EP4534635B1 (en) * | 2023-10-02 | 2025-12-17 | Itelyum Regeneration S.p.A. | Process for the production of biolubricants from waste materials |
| EP4671350A1 (en) * | 2024-06-26 | 2025-12-31 | Itelyum Regeneration S.p.A. | METHOD FOR RECOVERING A BIOLOGICAL FRACTION FROM THE REGENERATION OF USED OILS |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR886208A (fr) * | 1942-06-08 | 1943-10-08 | Procédé de traitement de vieilles huiles usées en vue de leur régénération | |
| US3565791A (en) * | 1968-12-12 | 1971-02-23 | Kenneth Urquhart | Method and apparatus for distiling oil and water mixtures |
| US3625881A (en) * | 1970-08-31 | 1971-12-07 | Berks Associates Inc | Crank case oil refining |
| US3923643A (en) * | 1974-06-14 | 1975-12-02 | Shell Oil Co | Removal of lead and other suspended solids from used hydrocarbon lubricating oil |
| DE2508713C3 (de) * | 1975-02-28 | 1979-04-12 | Adolf Schmids Erben Ag, Bern | Verfahren zur Aufarbeitung von gebrauchtem Mineralöl |
| US4140212A (en) * | 1977-08-19 | 1979-02-20 | Vacsol Corporation | Cyclonic distillation tower for waste oil rerefining process |
| DE2818521A1 (de) * | 1978-04-27 | 1979-11-08 | Degussa | Verfahren zur wiederaufbereitung von gebrauchten schmieroelen (ii) |
| CA1174630A (en) * | 1981-06-08 | 1984-09-18 | Donald M. Haskell | Reclaiming used lubricating oil |
| NO170429C (no) * | 1991-03-05 | 1992-10-14 | Bgb V Snorre Bentsen Is | Fremgangsmaate ved raffinering av brukte smoereoljer og apparat til anvendelse ved fremgangsmaaten |
-
1992
- 1992-09-30 IT ITMI922271A patent/IT1255534B/it active IP Right Grant
-
1993
- 1993-01-14 PL PL93297417A patent/PL171473B1/pl unknown
- 1993-09-26 EG EG62393A patent/EG20181A/xx active
- 1993-09-28 HU HU9401725A patent/HU213650B/hu unknown
- 1993-09-28 RU RU9494028710A patent/RU2099397C1/ru active
- 1993-09-28 WO PCT/EP1993/002628 patent/WO1994007798A1/en not_active Ceased
- 1993-09-28 DK DK93921862T patent/DK0618959T3/da active
- 1993-09-28 AT AT93921862T patent/ATE180009T1/de active
- 1993-09-28 CZ CZ19941579A patent/CZ287418B6/cs not_active IP Right Cessation
- 1993-09-28 TJ TJ96000355A patent/TJ335B/xx unknown
- 1993-09-28 EP EP93921862A patent/EP0618959B1/en not_active Expired - Lifetime
- 1993-09-28 ES ES93921862T patent/ES2132258T3/es not_active Expired - Lifetime
- 1993-09-28 DE DE69324905T patent/DE69324905T2/de not_active Expired - Lifetime
- 1993-09-29 CN CN93118174A patent/CN1040995C/zh not_active Expired - Lifetime
-
1995
- 1995-01-17 SA SA95150447A patent/SA95150447B1/ar unknown
-
1999
- 1999-06-30 GR GR990401734T patent/GR3030648T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE69324905D1 (de) | 1999-06-17 |
| ITMI922271A0 (it) | 1992-09-30 |
| WO1994007798A1 (en) | 1994-04-14 |
| EP0618959A1 (en) | 1994-10-12 |
| DE69324905T2 (de) | 1999-11-11 |
| PL297417A1 (en) | 1994-04-05 |
| HUT68935A (en) | 1995-08-28 |
| IT1255534B (it) | 1995-11-09 |
| CZ157994A3 (en) | 1994-12-15 |
| HK1013280A1 (en) | 1999-08-20 |
| PL171473B1 (pl) | 1997-05-30 |
| GR3030648T3 (en) | 1999-10-29 |
| SA95150447B1 (ar) | 2006-02-08 |
| ES2132258T3 (es) | 1999-08-16 |
| EP0618959B1 (en) | 1999-05-12 |
| HU9401725D0 (en) | 1994-09-28 |
| ITMI922271A1 (it) | 1994-03-30 |
| DK0618959T3 (da) | 1999-11-29 |
| CZ287418B6 (en) | 2000-11-15 |
| HU213650B (en) | 1997-09-29 |
| SA95150447A (ar) | 2005-12-03 |
| RU2099397C1 (ru) | 1997-12-20 |
| TJ335B (en) | 2002-07-01 |
| ATE180009T1 (de) | 1999-05-15 |
| EG20181A (en) | 1997-09-30 |
| CN1086252A (zh) | 1994-05-04 |
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