JPS5476521A - Preparation of monochloroacetic acid - Google Patents

Preparation of monochloroacetic acid

Info

Publication number
JPS5476521A
JPS5476521A JP14268577A JP14268577A JPS5476521A JP S5476521 A JPS5476521 A JP S5476521A JP 14268577 A JP14268577 A JP 14268577A JP 14268577 A JP14268577 A JP 14268577A JP S5476521 A JPS5476521 A JP S5476521A
Authority
JP
Japan
Prior art keywords
acid
fluorine
electrolytic cell
groups
cation exchange
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.)
Granted
Application number
JP14268577A
Other languages
Japanese (ja)
Other versions
JPS559467B2 (en
Inventor
Hiroyuki Harada
Kazuhiro Hirao
Masaaki Ichino
Masayuki Maehara
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.)
KURORIN ENGINEERS KK
Daicel Corp
ThyssenKrupp Uhde Chlorine Engineers Japan Ltd
Original Assignee
KURORIN ENGINEERS KK
Chlorine Engineers Corp Ltd
Daicel Corp
Daicel Chemical Industries Ltd
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 KURORIN ENGINEERS KK, Chlorine Engineers Corp Ltd, Daicel Corp, Daicel Chemical Industries Ltd filed Critical KURORIN ENGINEERS KK
Priority to JP14268577A priority Critical patent/JPS5476521A/en
Publication of JPS5476521A publication Critical patent/JPS5476521A/en
Publication of JPS559467B2 publication Critical patent/JPS559467B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain monochloroacetic acid efficiently, by reducing dichloroacetic acid, using an electrolytic cell having a fluorine-containing cation exchange membrane under specific electrolysis conditions.
CONSTITUTION: Monochloroacetic acid is obtained by electrolytic reduction of (A) an aqueous solution having a specific conductivity ≥ 0.01 Ω-1.cm-1, comprising dichloroacetic acid and hydrochloric and/or sulfuric acids as a catholyte, using an aqueous mineral acid as an anolyte, with an electrolytic cell comprising (a) a fluorine-containing cation exchange membrane having sufonic acid groups alone or sulfonamido groups or their salts, with an exchange capacity calculated as an equivalent weight of 500W1,800, or carboxylic acid groups with an exchange capacity of 500W1,000, (b) the anode, and (c) the cathode consisting of lead or its alloy. The change of current density according to the dichloroacetic acid concentration in the electrolyte can provide the objective compound in a high yield.
USE: A raw material and intermediate for sizes, pesticides, medicines, perfumes, chelating agents, surfactants, etc.
COPYRIGHT: (C)1979,JPO&Japio
JP14268577A 1977-11-30 1977-11-30 Preparation of monochloroacetic acid Granted JPS5476521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14268577A JPS5476521A (en) 1977-11-30 1977-11-30 Preparation of monochloroacetic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14268577A JPS5476521A (en) 1977-11-30 1977-11-30 Preparation of monochloroacetic acid

Publications (2)

Publication Number Publication Date
JPS5476521A true JPS5476521A (en) 1979-06-19
JPS559467B2 JPS559467B2 (en) 1980-03-10

Family

ID=15321134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14268577A Granted JPS5476521A (en) 1977-11-30 1977-11-30 Preparation of monochloroacetic acid

Country Status (1)

Country Link
JP (1) JPS5476521A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3607446A1 (en) * 1986-03-07 1987-09-10 Hoechst Ag METHOD FOR THE DEHALOGENATION OF CHLORINE AND BROMIC ACID ACIDS
US5362367A (en) * 1990-05-18 1994-11-08 Hoechst Aktiengesellschaft Partial electrolytic dehalogenation of dichloroacetic and trichloroacetic acid and electrolysis solution

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3607446A1 (en) * 1986-03-07 1987-09-10 Hoechst Ag METHOD FOR THE DEHALOGENATION OF CHLORINE AND BROMIC ACID ACIDS
US5362367A (en) * 1990-05-18 1994-11-08 Hoechst Aktiengesellschaft Partial electrolytic dehalogenation of dichloroacetic and trichloroacetic acid and electrolysis solution

Also Published As

Publication number Publication date
JPS559467B2 (en) 1980-03-10

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