RU93054522A - Способ выделения hf из его смесей с хлорфторуглеводородами 123 и/или 124 - Google Patents
Способ выделения hf из его смесей с хлорфторуглеводородами 123 и/или 124Info
- Publication number
- RU93054522A RU93054522A RU93054522/26A RU93054522A RU93054522A RU 93054522 A RU93054522 A RU 93054522A RU 93054522/26 A RU93054522/26 A RU 93054522/26A RU 93054522 A RU93054522 A RU 93054522A RU 93054522 A RU93054522 A RU 93054522A
- Authority
- RU
- Russia
- Prior art keywords
- mixtures
- chlorofluoride
- hydrocarbons
- issue
- liquid
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims 3
- -1 CHLOROFLUORIDE HYDROCARBONS Chemical class 0.000 title 1
- 238000001704 evaporation Methods 0.000 claims 2
- 239000007791 liquid phase Substances 0.000 claims 2
- 239000012071 phase Substances 0.000 claims 2
- BOUGCJDAQLKBQH-UHFFFAOYSA-N 1-Chloro-1,2,2,2-tetrafluoroethane Chemical compound FC(Cl)C(F)(F)F BOUGCJDAQLKBQH-UHFFFAOYSA-N 0.000 claims 1
- OHMHBGPWCHTMQE-UHFFFAOYSA-N 2,2-Dichloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)C(Cl)Cl OHMHBGPWCHTMQE-UHFFFAOYSA-N 0.000 claims 1
- 230000002378 acidificating Effects 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000004821 distillation Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000012074 organic phase Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
Claims (1)
- Изобретение относится к способу выделения HF, содержащегося в жидких смесях, включающих в себя HCFC 123 и/или 124. Смеси, обогащенные по C2Cl4 до содержания 20 - 75% по весу этого соединения, подвергают обработке для разделения жидких фаз и получают тем самым кислую фазу, очень богатую по HF, и органическую фазу, обедненную по HF, которую подвергают мгновенному испарению, получая жидкую фазу, содержащую 123, 124 и C2Cl4 с очень низким содержанием HF, и газовую фазу, обогащенную по HF. В качестве альтернативы мгновенному испарению может быть проведена сепарация в дистилляционной колонне.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI92A002799 | 1992-12-10 | ||
| ITMI922799A IT1256631B (it) | 1992-12-10 | 1992-12-10 | Procedimento per la separazione di hf da sue miscele con gli idroclorofluorcarburi 123 e/o 124 |
| IT92A002799 | 1992-12-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU93054522A true RU93054522A (ru) | 1996-10-10 |
| RU2117651C1 RU2117651C1 (ru) | 1998-08-20 |
Family
ID=11364424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU93054522A RU2117651C1 (ru) | 1992-12-10 | 1993-12-08 | Способ выделения hf из жидких смесей, содержащий 1,1,1-трифтор-2,2-дихлорэтан и/или 1,1,1,2-тетрафтор-2-хлорэтан |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5560899A (ru) |
| EP (1) | EP0601373B1 (ru) |
| JP (1) | JP3537472B2 (ru) |
| KR (1) | KR100303802B1 (ru) |
| AT (1) | ATE148875T1 (ru) |
| CA (1) | CA2110869C (ru) |
| DE (1) | DE69308110T2 (ru) |
| IT (1) | IT1256631B (ru) |
| RU (1) | RU2117651C1 (ru) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3163831B2 (ja) * | 1993-04-06 | 2001-05-08 | ダイキン工業株式会社 | １，１−ジフルオロエタンとフッ化水素の共沸混合物および１，１−ジフルオロエタンまたはフッ化水素の回収方法 |
| JP2933014B2 (ja) * | 1996-01-23 | 1999-08-09 | ダイキン工業株式会社 | ペンタフルオロプロパンとフッ化水素の共沸混合物およびペンタフルオロプロパンの分離精製方法 |
| US5948381A (en) * | 1996-07-03 | 1999-09-07 | Alliedsignal Inc. | Process for separating fluorocarbon compounds |
| FR2768717B1 (fr) * | 1997-09-24 | 1999-11-12 | Solvay | Procede de separation de fluorure d'hydrogene de ses melanges avec un hydrofluoroalcane contenant de 3 a 6 atomes de carbone |
| CN100387561C (zh) | 1998-12-18 | 2008-05-14 | 索尔维公司 | 含有至少一种含氢氟烷和氟化氢的混合物的分离方法,含氢氟烷的制备方法和共沸组合物 |
| US6417413B1 (en) | 1999-11-03 | 2002-07-09 | Alliedsignal Inc. | Process for the preparation of halogenated ethanes |
| US6423290B1 (en) * | 2000-05-31 | 2002-07-23 | International Business Machines Corporation | Method for recovering an organic solvent from an acidic waste stream such as in integrated chip manufacturing |
| US6673264B2 (en) | 2001-06-01 | 2004-01-06 | Honeywell International Inc. | Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane and hydrogen fluoride |
| DE10221113B4 (de) * | 2002-05-06 | 2013-04-04 | Fluorchemie Gmbh Frankfurt | Verfahren zur Herstellung hochreiner Flusssäure |
| US7371363B2 (en) * | 2003-07-15 | 2008-05-13 | Honeywell International Inc. | Methods of purifying hydrogen fluoride |
| US7803975B2 (en) * | 2006-07-13 | 2010-09-28 | E.I. Du Pont De Nemours And Company | Process for separating a fluoroolefin from HF by liquid-liquid extraction |
| KR20100138933A (ko) * | 2008-02-21 | 2010-12-31 | 이 아이 듀폰 디 네모아 앤드 캄파니 | 공비 증류에 의한 플루오르화수소로부터의 2,3,3,3-테트라플루오로프로펜의 분리 방법 |
| ES2699153T3 (es) * | 2008-02-21 | 2019-02-07 | Chemours Co Fc Llc | Procedimientos para la separación de 3,3,3-trifluoropropeno y fluoruro de hidrógeno |
| EP2247560B1 (en) * | 2008-02-21 | 2014-06-04 | E. I. du Pont de Nemours and Company | Processes for separation of 1,3,3,3-tetrafluoropropene from hydrogen fluoride by azeotropic distillation |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2640086A (en) * | 1951-12-15 | 1953-05-26 | Du Pont | Process for separating hydrogen fluoride from chlorodifluoromethane |
| US3406099A (en) * | 1965-09-16 | 1968-10-15 | Allied Chem | Distillation of an azeotropic mixture of cf3cocf3 hf and ccl2fccif2 |
| US3947558A (en) * | 1973-08-16 | 1976-03-30 | Dow Chemical (Nederland) B.V. | Method of recovering HF from mixtures containing C1 -C3 halocarbon compounds |
| FR2414475A1 (fr) * | 1978-01-13 | 1979-08-10 | Solvay | Procede pour la separation du fluorure d'hydrogene de ses melanges avec le 1-chloro-1, 1-difluorethane |
| US4382895A (en) * | 1979-11-27 | 1983-05-10 | Texaco Inc. | Preparation of alkyl sulfonates |
| FR2505832A1 (fr) * | 1981-05-15 | 1982-11-19 | Rhone Poulenc Spec Chim | Procede de preparation d'imides n-benzyl substitues |
| IT1202652B (it) * | 1987-03-09 | 1989-02-09 | Ausimont Spa | Processo per la preparazione di 1,1,1-trifluoro-2,2-dicloroetano mediante idrofluorurazione in presenza di catalizzatori |
| US4944846A (en) * | 1988-08-01 | 1990-07-31 | E. I. Dupont De Nemours And Company | Process for the separation of HF via Azeotropic distillation |
| US4911792A (en) * | 1988-08-01 | 1990-03-27 | E. I. Du Pont De Nemours And Company | Process for the separation of HF via phase separation and distillation |
| US5100639A (en) * | 1990-03-02 | 1992-03-31 | E. I. Du Pont De Nemours And Company | Process for purifying hydrogen fluoride |
| GB9018372D0 (en) * | 1990-08-21 | 1990-10-03 | Ici Plc | Separation process |
-
1992
- 1992-12-10 IT ITMI922799A patent/IT1256631B/it active IP Right Grant
-
1993
- 1993-11-22 EP EP93118728A patent/EP0601373B1/en not_active Expired - Lifetime
- 1993-11-22 AT AT93118728T patent/ATE148875T1/de active
- 1993-11-22 DE DE69308110T patent/DE69308110T2/de not_active Expired - Fee Related
- 1993-12-07 CA CA002110869A patent/CA2110869C/en not_active Expired - Fee Related
- 1993-12-08 RU RU93054522A patent/RU2117651C1/ru not_active IP Right Cessation
- 1993-12-08 KR KR1019930026843A patent/KR100303802B1/ko not_active IP Right Cessation
- 1993-12-09 JP JP30943593A patent/JP3537472B2/ja not_active Expired - Fee Related
-
1996
- 1996-02-20 US US08/604,090 patent/US5560899A/en not_active Expired - Fee Related
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