KR100512845B1 - 디플르오로메탄의 제조 방법 - Google Patents
디플르오로메탄의 제조 방법 Download PDFInfo
- Publication number
- KR100512845B1 KR100512845B1 KR10-2002-0072666A KR20020072666A KR100512845B1 KR 100512845 B1 KR100512845 B1 KR 100512845B1 KR 20020072666 A KR20020072666 A KR 20020072666A KR 100512845 B1 KR100512845 B1 KR 100512845B1
- Authority
- KR
- South Korea
- Prior art keywords
- reaction
- gas phase
- reactor
- hydrogen fluoride
- temperature
- Prior art date
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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
- C07C19/00—Acyclic saturated compounds containing halogen atoms
- C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine
-
- 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
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- 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)
Abstract
Description
Claims (6)
- 메틸렌클로라이드와 불화수소를 촉매반응시켜 디플르오로메탄을 제조하는방법에 있어서, 메틸렌클로라이드와 불화수소를 산소와 불소화촉매 존재하에280∼340℃의 온도에서 기상으로 접촉반응시켜 클로로플르오로메탄을 제조하고, 상기 클로로플르오로메탄을 염화안티모니 촉매존재하 60∼80℃의 온도에서 불화수소와 액상반응시켜 디플르오로 메탄을 제조하는 방법.
- 제 1항에 있어서, 불소화 촉매가 산화 크롬, 크롬 옥시 플르오라이드, 산화 알루미늄, 알루미늄 플르오라이드, 염화 불화 알루미늄인 디플르오로 메탄을 제조하는 방법.
- 제 1항에 있어서, 메틸렌클로라이드와 불화수소의 반응 몰비를 메틸렌클로라이드 1몰에 대하여, 불화수소가 2몰∼10몰로 하여 디플르오로 메탄을 제조하는 방법.
- 제 1항에 있어서, 기상반응의 압력이 8∼12kg/cm2G이고, 액상반응의 압력이 6∼10kg/cm2G인 디플르오로 메탄을 제조하는 방법.
- 제 1항에 있어서, 기상접촉반응시간이 15 내지 20초 인 디플르오로 메탄을 제조하는 방법.
- 제 1항에 있어서, 기상접촉반응시 산소의 농도가 0.005~0.2%인 디플르오로 메탄을 제조하는 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0072666A KR100512845B1 (ko) | 2002-11-21 | 2002-11-21 | 디플르오로메탄의 제조 방법 |
US10/372,430 US6841705B2 (en) | 2002-11-21 | 2003-02-24 | Method of producing difluoromethane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0072666A KR100512845B1 (ko) | 2002-11-21 | 2002-11-21 | 디플르오로메탄의 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040044599A KR20040044599A (ko) | 2004-05-31 |
KR100512845B1 true KR100512845B1 (ko) | 2005-09-07 |
Family
ID=32322277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0072666A KR100512845B1 (ko) | 2002-11-21 | 2002-11-21 | 디플르오로메탄의 제조 방법 |
Country Status (2)
Country | Link |
---|---|
US (1) | US6841705B2 (ko) |
KR (1) | KR100512845B1 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1052682B1 (de) * | 1999-04-28 | 2002-01-09 | SEZ Semiconductor-Equipment Zubehör für die Halbleiterfertigung AG | Vorrichtung und Verfahren zur Flüssigkeitsbehandlung von scheibenförmigen Gegenständen |
US7642387B2 (en) | 2007-04-18 | 2010-01-05 | International Isotopes, Inc. | Processes for producing halocarbon compounds using inorganic fluoride |
US7645912B2 (en) * | 2007-04-18 | 2010-01-12 | International Isotopes, Inc. | Processes for producing hydrofluorocarbon compounds using inorganic fluoride |
US7745673B2 (en) * | 2007-09-04 | 2010-06-29 | International Isotopes Inc. | Processes for producing hydrohalocarbon and halocarbon compounds using silicon tetrafluoride |
CN109748776B (zh) * | 2017-11-08 | 2021-08-17 | 浙江蓝天环保高科技股份有限公司 | 一种hcfc-22生产中副产三氟甲烷的资源化利用制备二氟甲烷的方法 |
CN113698270A (zh) * | 2021-08-24 | 2021-11-26 | 聊城氟尔新材料科技有限公司 | 一种二氟甲烷稳定生产的工艺及*** |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08183748A (ja) * | 1994-12-28 | 1996-07-16 | Ulsan Chem Co Ltd | ジフルオロメタンの製造方法 |
WO1997003922A1 (fr) * | 1994-01-10 | 1997-02-06 | Showa Aluminum Corporation | Procede pour produire du silicium tres pur |
KR970010459A (ko) * | 1995-08-17 | 1997-03-27 | 전성원 | 듀얼 액티브 와셔펌프(Dual Active Washer Pump) 장치 |
US5763704A (en) * | 1993-03-24 | 1998-06-09 | Imperial Chemical Industries Plc | Production of difluoromethane |
US6407296B1 (en) * | 1994-07-01 | 2002-06-18 | Daikin Industries Ltd. | Process for producing difluoromethane |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5763708A (en) * | 1995-09-20 | 1998-06-09 | Allied Signal Inc. | Process for the production of difluoromethane |
-
2002
- 2002-11-21 KR KR10-2002-0072666A patent/KR100512845B1/ko active IP Right Grant
-
2003
- 2003-02-24 US US10/372,430 patent/US6841705B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5763704A (en) * | 1993-03-24 | 1998-06-09 | Imperial Chemical Industries Plc | Production of difluoromethane |
WO1997003922A1 (fr) * | 1994-01-10 | 1997-02-06 | Showa Aluminum Corporation | Procede pour produire du silicium tres pur |
US6407296B1 (en) * | 1994-07-01 | 2002-06-18 | Daikin Industries Ltd. | Process for producing difluoromethane |
JPH08183748A (ja) * | 1994-12-28 | 1996-07-16 | Ulsan Chem Co Ltd | ジフルオロメタンの製造方法 |
KR970010459A (ko) * | 1995-08-17 | 1997-03-27 | 전성원 | 듀얼 액티브 와셔펌프(Dual Active Washer Pump) 장치 |
Also Published As
Publication number | Publication date |
---|---|
KR20040044599A (ko) | 2004-05-31 |
US20040102659A1 (en) | 2004-05-27 |
US6841705B2 (en) | 2005-01-11 |
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