GB1120750A - Process for the production of alkali metal salts of polycarboxylic acids - Google Patents

Process for the production of alkali metal salts of polycarboxylic acids

Info

Publication number
GB1120750A
GB1120750A GB5756666A GB5756666A GB1120750A GB 1120750 A GB1120750 A GB 1120750A GB 5756666 A GB5756666 A GB 5756666A GB 5756666 A GB5756666 A GB 5756666A GB 1120750 A GB1120750 A GB 1120750A
Authority
GB
United Kingdom
Prior art keywords
alkali metal
suspension
polycarboxylic acid
metal salts
production
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
GB5756666A
Inventor
Heinz Hartel
Hans Mirau
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel 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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of GB1120750A publication Critical patent/GB1120750A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/06—Catalysts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/18—Copolymerisation of aldehydes or ketones
    • C08G2/20—Copolymerisation of aldehydes or ketones with other aldehydes or ketones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/18—Copolymerisation of aldehydes or ketones
    • C08G2/26—Copolymerisation of aldehydes or ketones with compounds containing carbon-to-carbon unsaturation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/30—Chemical modification by after-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polyamides (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Alkali metal salts of a polycarboxylic acid are obtained by producing a suspension of a polyaldehyde by polymerizing an a -b -ethylenically unsaturated aldehyde in the presence of a Redox system containing silver nitrate as reducing agent making the suspension alkaline by adding alkali metal ions thereto, and thereafter oxidizing the polyaldehyde by passing oxygen or an oxygen-containing gas through the heated suspension, whereby the desired alkali metal salt of a polycarboxylic acid is produced in solution. The free polycarboxylic acid may be produced by filtering off from the solution the hydrated silver oxide formed as a result of the suspension being made alkaline, and acidifying the filtrate.
GB5756666A 1965-12-22 1966-12-22 Process for the production of alkali metal salts of polycarboxylic acids Expired GB1120750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0048981 1965-12-22

Publications (1)

Publication Number Publication Date
GB1120750A true GB1120750A (en) 1968-07-24

Family

ID=7051564

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5756666A Expired GB1120750A (en) 1965-12-22 1966-12-22 Process for the production of alkali metal salts of polycarboxylic acids

Country Status (5)

Country Link
BE (1) BE691564A (en)
DE (1) DE1570493A1 (en)
FR (1) FR1511170A (en)
GB (1) GB1120750A (en)
NL (1) NL6617952A (en)

Also Published As

Publication number Publication date
FR1511170A (en) 1968-01-26
DE1570493A1 (en) 1970-03-26
NL6617952A (en) 1967-06-23
BE691564A (en) 1967-05-29

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