CN1035761C - 提纯1,1,1,2-四氟乙烷的方法 - Google Patents
提纯1,1,1,2-四氟乙烷的方法 Download PDFInfo
- Publication number
- CN1035761C CN1035761C CN92112813.4A CN92112813A CN1035761C CN 1035761 C CN1035761 C CN 1035761C CN 92112813 A CN92112813 A CN 92112813A CN 1035761 C CN1035761 C CN 1035761C
- Authority
- CN
- China
- Prior art keywords
- tetrafluoroethane
- reaction
- hfc
- impurity
- reactor
- 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
- C07C17/395—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3115551A JP2897454B2 (ja) | 1991-04-19 | 1991-04-19 | 1,1,1,2−テトラフルオロエタンの精製法 |
CN92112813.4A CN1035761C (zh) | 1991-04-19 | 1992-10-17 | 提纯1,1,1,2-四氟乙烷的方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3115551A JP2897454B2 (ja) | 1991-04-19 | 1991-04-19 | 1,1,1,2−テトラフルオロエタンの精製法 |
CN92112813.4A CN1035761C (zh) | 1991-04-19 | 1992-10-17 | 提纯1,1,1,2-四氟乙烷的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1085888A CN1085888A (zh) | 1994-04-27 |
CN1035761C true CN1035761C (zh) | 1997-09-03 |
Family
ID=36791805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN92112813.4A Expired - Lifetime CN1035761C (zh) | 1991-04-19 | 1992-10-17 | 提纯1,1,1,2-四氟乙烷的方法 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2897454B2 (ja) |
CN (1) | CN1035761C (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2694556B1 (fr) * | 1992-08-05 | 1994-09-23 | Atochem Elf Sa | Procédé de purification du 1,1,1,2-tétrafluoroéthane. |
FR2711135B1 (fr) * | 1993-10-13 | 1995-11-17 | Atochem Elf Sa | Procédé de purification du 1,1,1,2-tétrafluoroéthane. |
ES2105565T3 (es) * | 1993-10-13 | 1997-10-16 | Atochem Elf Sa | Procedimiento para la purificacion del 1,1,1,2-tetrafluoretano. |
DE4335179A1 (de) * | 1993-10-15 | 1995-04-20 | Solvay Fluor & Derivate | Verfahren zur Herstellung von Pentafluorethan und zur Reinigung von 1,1,1,2-Tetrafluorethan |
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 |
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 |
FR2736050B1 (fr) | 1995-06-29 | 1997-08-01 | Atochem Elf Sa | Procede de fabrication du difluoromethane |
CN105438810A (zh) * | 2015-12-15 | 2016-03-30 | 爱彼思(苏州)自动化科技有限公司 | 一种自动打夹机 |
CN108623431A (zh) * | 2018-06-28 | 2018-10-09 | 江苏三美化工有限公司 | 一种通过净化反应提纯1,1,1,2-四氟乙烷的方法 |
-
1991
- 1991-04-19 JP JP3115551A patent/JP2897454B2/ja not_active Expired - Lifetime
-
1992
- 1992-10-17 CN CN92112813.4A patent/CN1035761C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2897454B2 (ja) | 1999-05-31 |
JPH04321632A (ja) | 1992-11-11 |
CN1085888A (zh) | 1994-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
OR01 | Other related matters | ||
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20121017 Granted publication date: 19970903 |