CA2068832A1 - Process for the preparation of pentafluoroethane (r 125) - Google Patents
Process for the preparation of pentafluoroethane (r 125)Info
- Publication number
- CA2068832A1 CA2068832A1 CA002068832A CA2068832A CA2068832A1 CA 2068832 A1 CA2068832 A1 CA 2068832A1 CA 002068832 A CA002068832 A CA 002068832A CA 2068832 A CA2068832 A CA 2068832A CA 2068832 A1 CA2068832 A1 CA 2068832A1
- Authority
- CA
- Canada
- Prior art keywords
- chromium
- pentafluoroethane
- magnesium
- preparation
- hydroxide
- 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
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 3
- 238000002360 preparation method Methods 0.000 title abstract 3
- OHMHBGPWCHTMQE-UHFFFAOYSA-N 2,2-dichloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)C(Cl)Cl OHMHBGPWCHTMQE-UHFFFAOYSA-N 0.000 abstract 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract 2
- VQWFNAGFNGABOH-UHFFFAOYSA-K chromium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Cr+3] VQWFNAGFNGABOH-UHFFFAOYSA-K 0.000 abstract 2
- 229910000040 hydrogen fluoride Inorganic materials 0.000 abstract 2
- NACUKFIFISCLOQ-UHFFFAOYSA-N [Mg].[Cr] Chemical compound [Mg].[Cr] NACUKFIFISCLOQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- BFGKITSFLPAWGI-UHFFFAOYSA-N chromium(3+) Chemical class [Cr+3] BFGKITSFLPAWGI-UHFFFAOYSA-N 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract 1
- 239000000347 magnesium hydroxide Substances 0.000 abstract 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- 159000000003 magnesium salts Chemical class 0.000 abstract 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/22—Halogenating
- B01J37/26—Fluorinating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/26—Chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0236—Drying, e.g. preparing a suspension, adding a soluble salt and drying
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
- C07C17/202—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction
- C07C17/206—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction the other compound being HX
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Process for the preparation of pentafluoroethane (R 125) The invention relates to a process for the preparation of pentafluoroethane (R 125) from 1,1-dichloro-2,2,2-trifluoroethane (R 123) and hydrogen fluoride in the gas phase, which comprises using a chromium- and magnesium-containing catalyst which is obtainable by precipitating chromium(III) hydroxide by reacting 1 mol of a water-soluble chromium(III) salt with at least 1.5 mol of magnesium hydroxide or magnesium oxide in the presence of water, converting the reaction mixture into a paste containing chromium hydroxide and a magnesium salt, and then drying the paste and treating the residue with hydrogen fluoride at temperatures of from 20 to 500°C.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4116209.9 | 1991-05-17 | ||
| DE4116209 | 1991-05-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2068832A1 true CA2068832A1 (en) | 1992-11-18 |
| CA2068832C CA2068832C (en) | 2002-10-29 |
Family
ID=6431905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002068832A Expired - Fee Related CA2068832C (en) | 1991-05-17 | 1992-05-15 | Process for the preparation of pentafluoroethane (r 125) |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0513823B1 (en) |
| JP (1) | JP3217446B2 (en) |
| AT (1) | ATE128703T1 (en) |
| CA (1) | CA2068832C (en) |
| DE (1) | DE59203875D1 (en) |
| DK (1) | DK0513823T3 (en) |
| ES (1) | ES2078583T3 (en) |
| GR (1) | GR3017745T3 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2700770B1 (en) * | 1993-01-27 | 1995-03-24 | Atochem Elf Sa | Process for the production of 1,1,1,2-tetrafluoro-2-chloroethane and pentafluoroethane. |
| IT1270959B (en) * | 1993-08-13 | 1997-05-26 | Ausimont Spa | PROCESS FOR THE PREPARATION OF PENTAFLUOROETHANE |
| US5475167A (en) * | 1995-02-17 | 1995-12-12 | E. I. Du Pont De Nemours And Company | Process for the manufacture of pentafluoroethane |
| DE19510024C2 (en) * | 1995-03-20 | 1997-02-06 | Hoechst Ag | Process for the preparation of pentafluoroethane (R 125) |
| JP3853397B2 (en) * | 1995-05-11 | 2006-12-06 | イネオス フラウアー ホールデイングス リミテッド | Process for producing pentafluoroethane and composition suitable for conversion to pentafluoroethane |
| KR100215542B1 (en) * | 1996-04-23 | 1999-08-16 | 박원훈 | Method of producing 1,1,1,2-tetrafluoroethane and pentafluoroethane at the same time |
| KR100680766B1 (en) * | 2005-09-23 | 2007-02-09 | 울산화학주식회사 | Process for preparing catalyst for pentafluoroethane |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1307224A (en) * | 1969-06-27 | 1973-02-14 | Ici Ltd | Chromium oxide catalyst |
| JPS5527139A (en) * | 1978-08-14 | 1980-02-27 | Daikin Ind Ltd | Preparation of tetrafluoroethane |
| DE3323374A1 (en) * | 1983-06-29 | 1985-01-10 | Hoechst Ag, 6230 Frankfurt | CATALYSTS FOR FLUORATION AND / OR DISMUTATION REACTIONS OF HALOGEN HYDROCARBONS AND METHOD FOR THE PRODUCTION THEREOF |
| US5036036A (en) * | 1989-06-13 | 1991-07-30 | E. I. Du Pont De Nemours And Company | Chromium oxide catalyst composition |
| DE3930507A1 (en) * | 1989-09-13 | 1991-03-21 | Hoechst Ag | METHOD FOR PRODUCING 1,1,1,2-TETRAFLUORETHANE |
| FR2661906B1 (en) * | 1990-05-11 | 1993-10-01 | Atochem | PROCESS FOR THE MANUFACTURE OF 1,1,1,2-TETRAFLUORO-CHLOROETHANE AND PENTAFLUOROETHANE. |
-
1992
- 1992-05-15 DK DK92108249.1T patent/DK0513823T3/en active
- 1992-05-15 ES ES92108249T patent/ES2078583T3/en not_active Expired - Lifetime
- 1992-05-15 DE DE59203875T patent/DE59203875D1/en not_active Expired - Fee Related
- 1992-05-15 EP EP92108249A patent/EP0513823B1/en not_active Expired - Lifetime
- 1992-05-15 CA CA002068832A patent/CA2068832C/en not_active Expired - Fee Related
- 1992-05-15 AT AT92108249T patent/ATE128703T1/en not_active IP Right Cessation
- 1992-05-15 JP JP12391992A patent/JP3217446B2/en not_active Expired - Fee Related
-
1995
- 1995-10-16 GR GR950402845T patent/GR3017745T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0513823A2 (en) | 1992-11-19 |
| EP0513823B1 (en) | 1995-10-04 |
| DE59203875D1 (en) | 1995-11-09 |
| GR3017745T3 (en) | 1996-01-31 |
| CA2068832C (en) | 2002-10-29 |
| ES2078583T3 (en) | 1995-12-16 |
| DK0513823T3 (en) | 1996-02-05 |
| JPH07118182A (en) | 1995-05-09 |
| EP0513823A3 (en) | 1993-08-11 |
| ATE128703T1 (en) | 1995-10-15 |
| JP3217446B2 (en) | 2001-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |