GB2285443B - Highly purified acetonitrile and process for purifying crude acetonitrile - Google Patents
Highly purified acetonitrile and process for purifying crude acetonitrileInfo
- Publication number
- GB2285443B GB2285443B GB9500707A GB9500707A GB2285443B GB 2285443 B GB2285443 B GB 2285443B GB 9500707 A GB9500707 A GB 9500707A GB 9500707 A GB9500707 A GB 9500707A GB 2285443 B GB2285443 B GB 2285443B
- Authority
- GB
- United Kingdom
- Prior art keywords
- acetonitrile
- highly purified
- purifying crude
- crude acetonitrile
- purifying
- 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
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
- C07C253/34—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1993/000638 WO1994026698A1 (en) | 1993-05-14 | 1993-05-14 | High-purity acetonitrile and purification of crude acetonitrile |
FR9306051A FR2705342B1 (en) | 1993-05-14 | 1993-05-19 | Highly purified acetonitrile and process for purifying crude acetonitrile. |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9500707D0 GB9500707D0 (en) | 1995-03-08 |
GB2285443A GB2285443A (en) | 1995-07-12 |
GB2285443B true GB2285443B (en) | 1997-07-02 |
Family
ID=26230337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9500707A Expired - Lifetime GB2285443B (en) | 1993-05-14 | 1993-05-14 | Highly purified acetonitrile and process for purifying crude acetonitrile |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR2705342B1 (en) |
GB (1) | GB2285443B (en) |
WO (1) | WO1994026698A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2766388B1 (en) * | 1997-07-24 | 2000-01-14 | Rhodia Chimie Sa | PROCESS FOR REMOVAL OF ORGANOPHOSPHORUS COMPOUNDS CONTAINED IN A GAS OR LIQUID |
US6395142B1 (en) * | 1999-10-14 | 2002-05-28 | Chemcycles, Inc. | Method and apparatus for purifying low grade acetonitrile and other constituents from hazardous waste |
US10336690B2 (en) * | 2014-02-24 | 2019-07-02 | Honeywell International Inc. | Methods and systems for processing an acetonitrile waste stream |
CN113461570B (en) * | 2021-06-24 | 2023-02-17 | 索闻特环保科技(上海)有限公司 | Method for treating mixed liquid containing isopropanol, acetonitrile, triethylamine and water |
CN113956179B (en) * | 2021-12-20 | 2022-03-29 | 潍坊中汇化工有限公司 | Acetonitrile refining method and application thereof |
CN117417269B (en) * | 2023-12-19 | 2024-03-12 | 潍坊中汇化工有限公司 | Preparation method of anhydrous acetonitrile |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993023366A1 (en) * | 1992-05-21 | 1993-11-25 | Cryodyne Technologies Inc. | Method for purification of acetonitrile |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1223915A (en) * | 1968-09-18 | 1971-03-03 | Bp Chem Int Ltd | Purification of nitriles |
JPS5132518A (en) * | 1974-09-06 | 1976-03-19 | Mitsubishi Chem Ind | ASETONITORIRUNOSEISEIHO |
US4287134A (en) * | 1980-06-26 | 1981-09-01 | E. I. Du Pont De Nemours And Company | Purification of acetonitrile by caustic extraction |
DD217212A1 (en) * | 1983-05-10 | 1985-01-09 | Petrolchemisches Kombinat | PROCESS FOR CLEANING ACETONITRILE |
DD282818A7 (en) * | 1988-04-20 | 1990-09-26 | Petrolchemisches Kombinat | METHOD DISTILLATIVE AND OXIDATIVELY PREPARED TECHNICAL ACETONITRILS |
JP3104312B2 (en) * | 1991-07-16 | 2000-10-30 | 旭化成工業株式会社 | Acetonitrile purification method |
JPH05140070A (en) * | 1991-11-14 | 1993-06-08 | Asahi Chem Ind Co Ltd | Purification of acetonitrile |
-
1993
- 1993-05-14 WO PCT/JP1993/000638 patent/WO1994026698A1/en active Application Filing
- 1993-05-14 GB GB9500707A patent/GB2285443B/en not_active Expired - Lifetime
- 1993-05-19 FR FR9306051A patent/FR2705342B1/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993023366A1 (en) * | 1992-05-21 | 1993-11-25 | Cryodyne Technologies Inc. | Method for purification of acetonitrile |
Non-Patent Citations (3)
Title |
---|
JP510032518A * |
JP570032259A * |
WPI Abstract Acc. No.93-080366/10 and JP050025112A * |
Also Published As
Publication number | Publication date |
---|---|
GB2285443A (en) | 1995-07-12 |
FR2705342A1 (en) | 1994-11-25 |
WO1994026698A1 (en) | 1994-11-24 |
FR2705342B1 (en) | 1995-07-13 |
GB9500707D0 (en) | 1995-03-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Expiry date: 20130513 |