ES2082932T3 - Proceso para la purificacion de 1,1,1,2-tetrafluoretano. - Google Patents
Proceso para la purificacion de 1,1,1,2-tetrafluoretano.Info
- Publication number
- ES2082932T3 ES2082932T3 ES91307623T ES91307623T ES2082932T3 ES 2082932 T3 ES2082932 T3 ES 2082932T3 ES 91307623 T ES91307623 T ES 91307623T ES 91307623 T ES91307623 T ES 91307623T ES 2082932 T3 ES2082932 T3 ES 2082932T3
- Authority
- ES
- Spain
- Prior art keywords
- mixture
- hfa
- tetrafluorethane
- purification
- chlorine
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
- C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
- C07C17/386—Separation; Purification; Stabilisation; Use of additives by distillation with auxiliary compounds
Abstract
METODO PARA SEPARAR HFA 134A DE UNA MEZCLA SUYA CON HIDROCARBUROS HALOGENADOS QUE CONTIENEN CLORO COMO HCFC 1122, 124, 114, 114A Y 133A QUE COMPRENDE LA ADICION DE UN AGENTE DE EXTRACCION A LA MEZCLA Y DESTILAR EXTRACTIVAMENTE LA MEZCLA EN UNA ZONA DE DESTILACION EXTRACTIVA DE LA QUE SE RECUPERA HFA 134A CONTENIENDO MENOS DE 10 PPM DE CONTAMINANTES CLORADOS. LOS AGENTES DE EXTRACCION ADECUADOS SON TRICLOROETILENO, PERCLOROETILENO, ALFA-PINENO Y CICLOHEXANO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB909018372A GB9018372D0 (en) | 1990-08-21 | 1990-08-21 | Separation process |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2082932T3 true ES2082932T3 (es) | 1996-04-01 |
Family
ID=10681018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91307623T Expired - Lifetime ES2082932T3 (es) | 1990-08-21 | 1991-08-19 | Proceso para la purificacion de 1,1,1,2-tetrafluoretano. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5200431A (es) |
EP (1) | EP0472391B1 (es) |
JP (1) | JPH04257533A (es) |
CA (1) | CA2049602A1 (es) |
DE (1) | DE69116623T2 (es) |
ES (1) | ES2082932T3 (es) |
GB (2) | GB9018372D0 (es) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2689503B1 (fr) * | 1992-04-03 | 1994-06-10 | Solvay | Procede d'epuration d'un hydrofluoroalcane. |
FR2689885B1 (fr) * | 1992-04-14 | 1994-10-21 | Atochem North America Elf | Procédé pour inhiber la décomposition du 1,1-dichloro-1-fluoréthane. |
IT1256631B (it) * | 1992-12-10 | 1995-12-12 | Ausimont Spa | Procedimento per la separazione di hf da sue miscele con gli idroclorofluorcarburi 123 e/o 124 |
GB9307923D0 (en) * | 1993-04-16 | 1993-06-02 | Ici Plc | Process for the purification of 1-chloro-2,2,2-trifluroethane |
EP0743933B1 (en) * | 1994-02-07 | 1999-06-09 | E.I. Du Pont De Nemours And Company | Process for separating pentafluoroethane from a mixture comprising halogenated hydrocarbons and chloropentafluoroethane |
FR2716449B1 (fr) * | 1994-02-24 | 1996-04-05 | Atochem Elf Sa | Procédé de purification du pentafluoroéthane. |
US5470442A (en) * | 1994-03-11 | 1995-11-28 | E. I. Du Pont De Nemours And Company | Separating and removing impurities from tetrafluoroethanes by using extractive distillation |
US5723429A (en) * | 1994-03-11 | 1998-03-03 | E. I. Du Pont De Nemours And Company | Azeotropic or azeotrope-like compositions of tetrafluoroethane and chlorotetrafluoroethane |
ATE191906T1 (de) * | 1994-08-17 | 2000-05-15 | Daikin Ind Ltd | Verfahren zur herstellung von pentafluorethan |
WO1996023752A1 (en) * | 1995-02-01 | 1996-08-08 | E.I. Du Pont De Nemours And Company | SEPARATING AND REMOVING IMPURITIES FROM 1,1,1-TRIFLUOROETHANE (HFC-143a) BY USING EXTRACTIVE DISTILLATION |
FR2730228B1 (fr) * | 1995-02-07 | 1997-06-20 | Atochem Elf Sa | Procede de purification du pentafluoroethane |
WO1998000379A1 (en) * | 1996-07-03 | 1998-01-08 | Alliedsignal Inc. | Water extraction of hydrogen fluoride from a halocarbon/hydrogen fluoride azeotropic mixture |
US5895639A (en) * | 1996-07-03 | 1999-04-20 | Alliedsignal Inc. | Separation of hydrogen fluoride from a fluorocarbon/hydrogen fluoride azeotropic mixture by sulfuric acid |
US5874657A (en) * | 1996-11-01 | 1999-02-23 | E. I. Du Pont De Nemours And Company | Process for the purification of 1,1-difluoroethane |
FR2758137B1 (fr) * | 1997-01-06 | 1999-02-26 | Atochem Elf Sa | Procede de purification du pentafluoroethane par distillation extractive |
FR2759078B1 (fr) * | 1997-02-04 | 1999-03-05 | Atochem Elf Sa | Purification du chlorotetrafluoroethane par distillation extractive |
US6164080A (en) * | 1998-08-12 | 2000-12-26 | Hudson Technologies, Inc. | Apparatus and method for flushing a refrigeration system |
US6357240B1 (en) | 1998-08-12 | 2002-03-19 | Hudson Technologies, Inc. | Apparatus and method for flushing a chiller system |
US6505475B1 (en) | 1999-08-20 | 2003-01-14 | Hudson Technologies Inc. | Method and apparatus for measuring and improving efficiency in refrigeration systems |
FR2806077B1 (fr) * | 2000-03-07 | 2004-01-30 | Solvay | Procede pour l'obtention d'un hydrofluoroalcane epure, hydrofluoroalcane epure, utilisation de l'hydrofluoroalcane et methode d'analyse d'un hydrofluoroalcane |
US7189311B2 (en) * | 2001-03-23 | 2007-03-13 | Honeywell International Inc. | Purification of difluoromethane |
EA027469B1 (ru) | 2002-12-09 | 2017-07-31 | Хадсон Текнолоджиз, Инк. | Способ и устройство для оптимизации холодильных систем |
US8463441B2 (en) * | 2002-12-09 | 2013-06-11 | Hudson Technologies, Inc. | Method and apparatus for optimizing refrigeration systems |
US7371363B2 (en) | 2003-07-15 | 2008-05-13 | Honeywell International Inc. | Methods of purifying hydrogen fluoride |
US7423103B2 (en) | 2004-06-21 | 2008-09-09 | Exxonmobil Chemical Patents Inc. | Low fouling and high activity polymerization process |
US7699962B2 (en) | 2004-06-23 | 2010-04-20 | Exxonmobil Chemical Patents Inc. | Processes utilizing extractive distillation |
FR2892933B1 (fr) * | 2005-11-10 | 2010-11-05 | Herve Andre Gerard Durand | Extrait vegetal obtenu par un procede d'extraction a l'aide de solvants d'origine vegetale |
US7893176B2 (en) * | 2007-03-23 | 2011-02-22 | Exxonmobil Chemical Patents Inc. | Polydispersity-controlled isoolefin polymerization with polymorphogenates |
EP2170789A1 (en) * | 2007-07-20 | 2010-04-07 | Solvay Fluor GmbH | Process for obtaining a purified hydrofluoroalkane |
US8845921B2 (en) | 2008-04-09 | 2014-09-30 | Honeywell International Inc. | Separation of close boiling compounds by addition of a third compound |
US8252965B2 (en) | 2008-08-22 | 2012-08-28 | Honeywell International Inc. | Method for separating halocarbons |
HUE050404T2 (hu) * | 2012-03-02 | 2020-12-28 | Arkema Inc | Eljárás szennyezés eltávolítására hidroklórfluorolefinbõl extraktív desztillációval |
FR3032706B1 (fr) * | 2015-02-17 | 2019-10-11 | Arkema France | Procede de separation du 2-chloro-1,1-difluoroethane et du trans-dichloroethylene |
CN115010576A (zh) * | 2022-07-02 | 2022-09-06 | 浙江三美化工股份有限公司 | 一种二氟甲烷的制备方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1293690A (fr) * | 1960-04-28 | 1962-05-18 | Du Pont | Procédé de distillation extractive de carbures fluorés |
US3689374A (en) * | 1971-05-10 | 1972-09-05 | Phillips Petroleum Co | Process for separating halogenated hydrocarbons by extractive distillation |
US3819493A (en) * | 1973-04-26 | 1974-06-25 | Phillips Petroleum Co | Process for separating halogenated hydrocarbons by extractive distillation |
-
1990
- 1990-08-21 GB GB909018372A patent/GB9018372D0/en active Pending
-
1991
- 1991-08-09 GB GB919117320A patent/GB9117320D0/en active Pending
- 1991-08-19 EP EP91307623A patent/EP0472391B1/en not_active Expired - Lifetime
- 1991-08-19 ES ES91307623T patent/ES2082932T3/es not_active Expired - Lifetime
- 1991-08-19 DE DE69116623T patent/DE69116623T2/de not_active Expired - Fee Related
- 1991-08-20 JP JP3208038A patent/JPH04257533A/ja active Pending
- 1991-08-21 CA CA002049602A patent/CA2049602A1/en not_active Abandoned
- 1991-08-21 US US07/747,755 patent/US5200431A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB9018372D0 (en) | 1990-10-03 |
DE69116623D1 (de) | 1996-03-07 |
EP0472391B1 (en) | 1996-01-24 |
EP0472391A1 (en) | 1992-02-26 |
CA2049602A1 (en) | 1992-02-22 |
US5200431A (en) | 1993-04-06 |
DE69116623T2 (de) | 1996-05-30 |
JPH04257533A (ja) | 1992-09-11 |
GB9117320D0 (en) | 1991-09-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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