GB905405A - Cation exchange process - Google Patents

Cation exchange process

Info

Publication number
GB905405A
GB905405A GB9905/59A GB990559A GB905405A GB 905405 A GB905405 A GB 905405A GB 9905/59 A GB9905/59 A GB 9905/59A GB 990559 A GB990559 A GB 990559A GB 905405 A GB905405 A GB 905405A
Authority
GB
United Kingdom
Prior art keywords
acid
acrylonitrile
copolymers
cation
vinylidene cyanide
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
GB9905/59A
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.)
Nopco Chemical Co
Original Assignee
Nopco Chemical Co
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 Nopco Chemical Co filed Critical Nopco Chemical Co
Publication of GB905405A publication Critical patent/GB905405A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/44—Preparation of metal salts or ammonium salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/12—Ion-exchange processes in general; Apparatus therefor characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes
    • B01J47/127—Ion-exchange processes in general; Apparatus therefor characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes in the form of filaments or fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/10—Copolymer characterised by the proportions of the comonomers expressed as molar percentages
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/20—Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Weak acid cation-exchange resins are made by treating a high molecular weight organic nitrile-containing polymer with a hydrolytic agent to convert at least some of the nitrile groups into carboxylic acid groups. Polymers specified are homopolymers of acrylonitrile, methacrylonitrile, ethacrylonitrile, fumaryl dinitrile and vinylidene cyanide, and copolymers of such monomers, e.g. copolymers of acrylonitrile with vinyl chloride, acrylic acid or methacrylic acid and a copolymer of vinylidene cyanide and vinyl acetate cross-linked with diphenylmethane diisocyanate. As a hydrolytic agent there is specified aqueous sulphuric acid of 50-70% strength. The final cation-exchange product is in fibrous form, the formation of fibres taking place either before or after the hydrolysis reaction. The products are able to combine with free bases such as ammonia, pyridine and streptomycin.
GB9905/59A 1958-10-03 1959-06-30 Cation exchange process Expired GB905405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76502858A 1958-10-03 1958-10-03

Publications (1)

Publication Number Publication Date
GB905405A true GB905405A (en) 1962-09-05

Family

ID=25072438

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9905/59A Expired GB905405A (en) 1958-10-03 1959-06-30 Cation exchange process
GB22432/59A Expired GB905404A (en) 1958-10-03 1959-06-30 Weak cation exchange resins

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB22432/59A Expired GB905404A (en) 1958-10-03 1959-06-30 Weak cation exchange resins

Country Status (3)

Country Link
BE (1) BE579309A (en)
FR (1) FR1237346A (en)
GB (2) GB905405A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2249443C2 (en) * 1972-10-09 1984-11-15 Cassella Ag, 6000 Frankfurt Water-soluble copolymers containing sulfonic acid groups and their use as textile auxiliaries

Also Published As

Publication number Publication date
BE579309A (en) 1959-10-01
GB905404A (en) 1962-09-05
FR1237346A (en) 1960-11-25

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