UA40612C2 - Спосіб одержання дифторметану (варіанти) - Google Patents

Спосіб одержання дифторметану (варіанти)

Info

Publication number
UA40612C2
UA40612C2 UA95094235A UA95094235A UA40612C2 UA 40612 C2 UA40612 C2 UA 40612C2 UA 95094235 A UA95094235 A UA 95094235A UA 95094235 A UA95094235 A UA 95094235A UA 40612 C2 UA40612 C2 UA 40612C2
Authority
UA
Ukraine
Prior art keywords
difluoro methane
producing
variants
methane
hydrogen fluoride
Prior art date
Application number
UA95094235A
Other languages
English (en)
Russian (ru)
Inventor
Девід Уільям Бонніфейс
Дэвид Уильям Боннифейс
Джон Девід Скотт
Джон Дэвид СКОТТ
Майкл Джон Уотсон
Original Assignee
Імперіал Кемікал Індастріз Плс
Империал Кемикал Индастрииз Плс
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26302637&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=UA40612(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB939306089A external-priority patent/GB9306089D0/en
Priority claimed from GB939306072A external-priority patent/GB9306072D0/en
Application filed by Імперіал Кемікал Індастріз Плс, Империал Кемикал Индастрииз Плс filed Critical Імперіал Кемікал Індастріз Плс
Publication of UA40612C2 publication Critical patent/UA40612C2/uk

Links

Classifications

    • 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
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)

Abstract

Цей винахід належить до способу отримання дифторметану. Спосіб отримання дифторметану включає: (а) контактування дихлорметану з фтористим воднем в присутності каталізатора фторування з отриманням потоку продуктів, що складається з дифторметану, монохлормонофторметану і вихідних матеріалів, що не прореагували, (б) виділення дифторметану з потоку продуктів зі стадії (а), причому процес ведуть з використанням такої кількості фтористого водню, яка достатнє для підтримання молярного співвідношення фтористого водню і монохлормонофторметану на стадії (б), принаймні, приблизно 100:1.
UA95094235A 1993-03-24 1994-03-14 Спосіб одержання дифторметану (варіанти) UA40612C2 (uk)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB939306089A GB9306089D0 (en) 1993-03-24 1993-03-24 Production of difluoromethane
GB939306072A GB9306072D0 (en) 1993-03-24 1993-03-24 Production of difluoromethane
PCT/GB1994/000497 WO1994021579A1 (en) 1993-03-24 1994-03-14 Production of difluoromethane

Publications (1)

Publication Number Publication Date
UA40612C2 true UA40612C2 (uk) 2001-08-15

Family

ID=26302637

Family Applications (2)

Application Number Title Priority Date Filing Date
UA95094274A UA35612C2 (uk) 1993-03-24 1994-03-14 Спосіб одержання дифторметану
UA95094235A UA40612C2 (uk) 1993-03-24 1994-03-14 Спосіб одержання дифторметану (варіанти)

Family Applications Before (1)

Application Number Title Priority Date Filing Date
UA95094274A UA35612C2 (uk) 1993-03-24 1994-03-14 Спосіб одержання дифторметану

Country Status (15)

Country Link
US (2) US5763704A (uk)
EP (2) EP0690833B1 (uk)
JP (2) JP3631753B2 (uk)
KR (2) KR100323102B1 (uk)
CN (2) CN1044227C (uk)
AU (2) AU691487B2 (uk)
BR (2) BR9406236A (uk)
CA (2) CA2157528C (uk)
DE (2) DE69410455T2 (uk)
ES (2) ES2116586T3 (uk)
GB (2) GB9404703D0 (uk)
RU (2) RU2127246C1 (uk)
TW (1) TW290531B (uk)
UA (2) UA35612C2 (uk)
WO (2) WO1994021580A1 (uk)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736050B1 (fr) 1995-06-29 1997-08-01 Atochem Elf Sa Procede de fabrication du difluoromethane
US5763708A (en) * 1995-09-20 1998-06-09 Allied Signal Inc. Process for the production of difluoromethane
FR2748022B1 (fr) * 1996-04-29 1998-07-24 Atochem Elf Sa Procede de fabrication du difluoromethane
BE1010626A3 (fr) * 1996-09-16 1998-11-03 Solvay Procede pour la preparation de difluoromethane.
US5800682A (en) * 1996-10-08 1998-09-01 Alliedsignal Inc. Process for the production of difluoromethane
BE1012227A3 (fr) * 1998-10-12 2000-07-04 Solvay Catalyseur et procede d'hydrofluoration.
DE60231010D1 (de) * 2002-07-10 2009-03-12 Srf Ltd Verfahren zur herstellung von difluormethan
WO2004007410A1 (en) * 2002-07-10 2004-01-22 Srf Limited A process for the production of difluoromethane
KR100512845B1 (ko) * 2002-11-21 2005-09-07 울산화학주식회사 디플르오로메탄의 제조 방법
TW200516068A (en) * 2003-09-10 2005-05-16 Showa Denko Kk Process for production of hydrofluorocarbons, products thereof and use of the products
US7371905B2 (en) * 2003-10-17 2008-05-13 Honeywell International Inc. Method of producing hydrofluorocarbons
US7112708B2 (en) 2004-04-01 2006-09-26 Honeywell International Inc. Method of making difluoromethane, 1,1,1-trifluoroethane and 1,1-difluoroethane
CN102176968B (zh) * 2008-09-05 2014-07-16 墨西哥化学阿玛科股份有限公司 氟化催化剂和制备氟代烃的方法
CN103842075B (zh) * 2011-10-12 2016-08-17 拜耳知识产权有限责任公司 1,1,2-三氯乙烷和/或1,2-二氯乙烯催化气相氟化制备1-氯-2,2-二氟乙烷
JP2014221727A (ja) * 2013-05-13 2014-11-27 昭和電工株式会社 ジクロロメタンの精製方法およびそれを用いるジフルオロメタンの製造方法
CN114425275B (zh) * 2020-09-18 2023-08-15 中国石油化工股份有限公司 甲烷氧化偶联反应器及其应用

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744148A (en) * 1952-02-04 1956-05-01 Dow Chemical Co Process for fluorination of haloalkanes using a hydrogen fluoride activated catalyst containing alumina, a metal fluoride and basic aluminum fluoride
US2745886A (en) * 1955-01-31 1956-05-15 Dow Chemical Co Process for fluorinating aliphatic halohydrocarbons with a chromium fluoride catalyst and process for preparing the catalyst
EP0128510A3 (en) * 1983-06-07 1985-05-15 Showa Denko Kabushiki Kaisha Process for producing difluoromethane
GB9104775D0 (en) * 1991-03-07 1991-04-17 Ici Plc Fluorination catalyst and process
US5300710A (en) * 1991-03-20 1994-04-05 E. I. Du Pont De Nemours And Company Process for the manufacture of 2-chloro-1,1,1,2-tetrafluoroethane and pentafluoroethane
US5208395A (en) * 1992-04-06 1993-05-04 Elf Atochem North America, Inc. Manufacture of hydrofluorocarbons
ES2111207T3 (es) * 1993-06-18 1998-03-01 Showa Denko Kk Catalizador de fluoracion y procedimiento de fluoracion.
KR960022411A (ko) * 1994-12-28 1996-07-18 남경희 디플루오로메탄의 제조방법

Also Published As

Publication number Publication date
KR960700983A (ko) 1996-02-24
KR960700982A (ko) 1996-02-24
AU691486B2 (en) 1998-05-21
EP0690832B1 (en) 1998-05-20
TW290531B (en) 1996-11-11
WO1994021579A1 (en) 1994-09-29
GB9404703D0 (en) 1994-04-27
CA2157878A1 (en) 1994-09-29
AU6213494A (en) 1994-10-11
US5763704A (en) 1998-06-09
CN1119431A (zh) 1996-03-27
BR9406201A (pt) 1995-12-12
RU2127246C1 (ru) 1999-03-10
CA2157528C (en) 2005-05-10
CN1057750C (zh) 2000-10-25
EP0690832A1 (en) 1996-01-10
KR100323102B1 (ko) 2002-11-07
US5672786A (en) 1997-09-30
EP0690833B1 (en) 1998-05-20
KR100323101B1 (ko) 2002-11-04
UA35612C2 (uk) 2001-04-16
AU691487B2 (en) 1998-05-21
JPH08508028A (ja) 1996-08-27
JPH08508029A (ja) 1996-08-27
BR9406236A (pt) 1996-01-09
WO1994021580A1 (en) 1994-09-29
RU2116288C1 (ru) 1998-07-27
ES2115940T3 (es) 1998-07-01
AU6213394A (en) 1994-10-11
CA2157878C (en) 2005-03-01
DE69410455T2 (de) 1998-09-17
DE69410456T2 (de) 1998-09-17
JP3631753B2 (ja) 2005-03-23
GB9404715D0 (en) 1994-04-27
CN1119432A (zh) 1996-03-27
ES2116586T3 (es) 1998-07-16
DE69410456D1 (de) 1998-06-25
CN1044227C (zh) 1999-07-21
EP0690833A1 (en) 1996-01-10
CA2157528A1 (en) 1994-09-29
DE69410455D1 (de) 1998-06-25

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