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GB2285443B - Highly purified acetonitrile and process for purifying crude acetonitrile - Google Patents

Highly purified acetonitrile and process for purifying crude acetonitrile

Info

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
Application number
GB9500707A
Other versions
GB9500707D0 (en
GB2285443A (en
Inventor
Shigeo Nakamura
Shigeru Kurihara
Minoru Saitoh
Hideo Midorikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
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
Application filed by Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Publication of GB9500707D0 publication Critical patent/GB9500707D0/en
Publication of GB2285443A publication Critical patent/GB2285443A/en
Application granted granted Critical
Publication of GB2285443B publication Critical patent/GB2285443B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
GB9500707A 1993-05-14 1993-05-14 Highly purified acetonitrile and process for purifying crude acetonitrile Expired - Lifetime GB2285443B (en)

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 (7)

* Cited by examiner, † Cited by third party
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
CN120965518A (en) * 2025-10-17 2025-11-18 昌邑天宇药业有限公司 A continuous negative pressure distillation and extraction process for acetonitrile

Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Title
JP510032518A *
JP570032259A *
WPI Abstract Acc. No.93-080366/10 and JP050025112A *

Also Published As

Publication number Publication date
GB9500707D0 (en) 1995-03-08
GB2285443A (en) 1995-07-12
FR2705342A1 (en) 1994-11-25
FR2705342B1 (en) 1995-07-13
WO1994026698A1 (en) 1994-11-24

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20130513