GB1249718A - Process for the purification of commercial monochloroacetic acid - Google Patents

Process for the purification of commercial monochloroacetic acid

Info

Publication number
GB1249718A
GB1249718A GB6258369A GB6258369A GB1249718A GB 1249718 A GB1249718 A GB 1249718A GB 6258369 A GB6258369 A GB 6258369A GB 6258369 A GB6258369 A GB 6258369A GB 1249718 A GB1249718 A GB 1249718A
Authority
GB
United Kingdom
Prior art keywords
acid
catalyst
dec
feed material
metal
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
Application number
GB6258369A
Inventor
Kurt Sennewald
Alexander Ohorodnik
Werner Mittler
Joachim Hundeck
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.)
Knapsack AG
Original Assignee
Knapsack AG
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 Knapsack AG filed Critical Knapsack AG
Publication of GB1249718A publication Critical patent/GB1249718A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/377—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Catalysts (AREA)

Abstract

1,249,718. Chloroacetic acid. KNAPSACK A.G. 23 Dec., 1969 [24 Dec., 1968], No. 62583/69. Heading C2C. Monochloroacetic acid containing dichloroacetic acid, acetic acid and, optionally, trichloroacetic acid is purified by passing excess hydrogen into the crude liquid at 60-170‹ C. having suspended therein 0À05 to 15% wt. of a fine particulate catalyst comprising an inert carrier and less than 1% wt. of a metal of Group VIII of the Periodic table. The metal specified is palladium and supports specified are silicic acid and active carbon, an exemplified catalyst having a particle size of 40 to 200 microns. Preferably at least 5 times the theorectical amount of hydrogen is used, and the catalyst-containing feed material is circulated thereby. The feed material may be obtained by the chlorination of glacial acetic acid in the presence of acetic anhydride and acetyl chloride, followed by saponification. Hydrogenation may be effected in a cylindrical reactor having a lateral pipe connecting its upper and lower portions. Such reactors may be used in series.
GB6258369A 1968-12-24 1969-12-23 Process for the purification of commercial monochloroacetic acid Expired GB1249718A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681816931 DE1816931B2 (en) 1968-12-24 1968-12-24 PROCESS FOR THE PURIFICATION OF A RAW PRODUCT ARISING FROM THE CHLORINATION OF ACETIC ACID WITH THE FORMATION OF MONOCHLOROACETIC ACID

Publications (1)

Publication Number Publication Date
GB1249718A true GB1249718A (en) 1971-10-13

Family

ID=5717357

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6258369A Expired GB1249718A (en) 1968-12-24 1969-12-23 Process for the purification of commercial monochloroacetic acid

Country Status (9)

Country Link
JP (1) JPS524530B1 (en)
BE (1) BE743711A (en)
CH (1) CH520093A (en)
DE (1) DE1816931B2 (en)
FR (1) FR2027078A1 (en)
GB (1) GB1249718A (en)
NL (1) NL148040B (en)
NO (1) NO126736B (en)
SE (1) SE371431B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100300884B1 (en) * 1994-11-23 2001-11-22 클라우스-빌헤름 멜니키/한스-디터 판처 MONOCHOLOROACETICACID MANUFACTURING METHOD
WO2013057125A1 (en) 2011-10-20 2013-04-25 Akzo Nobel Chemicals International B.V. Process for the purification of a liquid feed comprising mca and dca
WO2013057126A1 (en) * 2011-10-20 2013-04-25 Akzo Nobel Chemicals International B.V. Process for the hydrodechlorination of a liquid feed comprising dichloroacetic acid

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2156134T3 (en) 1994-12-02 2001-06-16 Salzgitter Anlagenbau Gmbh PROCEDURE FOR OBTAINING MONOCLORACETIC ACID.
DE19546080A1 (en) * 1995-12-11 1997-06-12 Hoechst Ag Process for the preparation of a particularly pure monochloroacetic acid
DE19710376A1 (en) * 1997-03-13 1998-09-17 Clariant Gmbh Catalyst for the hydrogenation dehalogenation of alpha-halogenated carboxylic acids and a process for its preparation
JP6815325B2 (en) 2015-03-17 2021-01-20 ヌーリオン ケミカルズ インターナショナル ベスローテン フェノーツハップＮｏｕｒｙｏｎ Ｃｈｅｍｉｃａｌｓ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｂ．Ｖ． Process for purification of monochloroacetic acid
AR104892A1 (en) 2015-06-12 2017-08-23 Akzo Nobel Chemicals Int Bv PROCESS FOR HYDRODECLORATION OF A FOOD THAT INCLUDES DICHLOROACETIC ACID

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100300884B1 (en) * 1994-11-23 2001-11-22 클라우스-빌헤름 멜니키/한스-디터 판처 MONOCHOLOROACETICACID MANUFACTURING METHOD
WO2013057125A1 (en) 2011-10-20 2013-04-25 Akzo Nobel Chemicals International B.V. Process for the purification of a liquid feed comprising mca and dca
WO2013057126A1 (en) * 2011-10-20 2013-04-25 Akzo Nobel Chemicals International B.V. Process for the hydrodechlorination of a liquid feed comprising dichloroacetic acid
CN103649039A (en) * 2011-10-20 2014-03-19 阿克佐诺贝尔化学国际公司 Process for the hydrodechlorination of a liquid feed comprising dichloroacetic acid
CN103687840A (en) * 2011-10-20 2014-03-26 阿克佐诺贝尔化学国际公司 Process for the purification of a liquid feed comprising mca and dca
CN103649039B (en) * 2011-10-20 2016-01-20 阿克佐诺贝尔化学国际公司 The method of the liquid feeding hydrodechlorination of dichloro acetic acid will be comprised
CN105646190A (en) * 2011-10-20 2016-06-08 阿克佐诺贝尔化学国际公司 Process for the hydrodechlorination of aliquid feed comprising dichloroacetic acid
US9505693B2 (en) 2011-10-20 2016-11-29 Akzo Nobel Chemicals International B.V. Process for the hydrodechlorination of a liquid feed comprising dichloroacetic acid
US9505694B2 (en) 2011-10-20 2016-11-29 Akzo Nobel Chemicals International B.V. Process for the purification of a liquid feed comprising MCA and DCA
RU2608630C2 (en) * 2011-10-20 2017-01-23 Акцо Нобель Кемикалз Интернэшнл Б.В. Process for hydrodechlorination of liquid feed comprising dichloroacetic acid
EP2748138B1 (en) * 2011-10-20 2017-04-26 Akzo Nobel Chemicals International B.V. Process for the purification of a liquid feed comprising mca and dca

Also Published As

Publication number Publication date
CH520093A (en) 1972-03-15
NL6919199A (en) 1970-06-26
BE743711A (en) 1970-06-24
FR2027078A1 (en) 1970-09-25
NL148040B (en) 1975-12-15
DE1816931C3 (en) 1974-03-28
SE371431B (en) 1974-11-18
NO126736B (en) 1973-03-19
DE1816931B2 (en) 1973-08-23
JPS524530B1 (en) 1977-02-04
DE1816931A1 (en) 1970-07-02

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