GB726925A - Improvements in cation-exchange resins - Google Patents

Improvements in cation-exchange resins

Info

Publication number
GB726925A
GB726925A GB1273952A GB1273952A GB726925A GB 726925 A GB726925 A GB 726925A GB 1273952 A GB1273952 A GB 1273952A GB 1273952 A GB1273952 A GB 1273952A GB 726925 A GB726925 A GB 726925A
Authority
GB
United Kingdom
Prior art keywords
ester
halo
acid
groups
methyl
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
GB1273952A
Inventor
Theodore Roger Ernest Kressman
Frank Laurence Tye
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.)
Permutit Co Ltd
Original Assignee
Permutit Co 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 Permutit Co Ltd filed Critical Permutit Co Ltd
Priority to GB1273952A priority Critical patent/GB726925A/en
Publication of GB726925A publication Critical patent/GB726925A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/40Introducing phosphorus atoms or phosphorus-containing groups

Landscapes

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

Abstract

Cation-exchange resins are made by introducing phosphonic acid groups into a halomethylated copolymer of a compound containing one double bond and a cross-linking agent, preferably in bead form, by reacting the halo-methyl groups with an ester or partial ester of phosphorous acid and hydrolysing the phosphonic ester groups. The copolymer may be formed from a monomer containing a halo-methyl group, e.g. p-chloromethyl styrene, or it may be after-treated with a halo-methyl ester in the presence of a Friedel-Crafts catalyst such as aluminium chloride in the presence of ethylene dichloride. Preferred copolymers are those of styrene and/or acenaphthalene and divinyl benzene. Suitable phosphorous esters are trimethyl and triethyl phosphites, sodium diethyl phosphite, potassium dimethyl phosphite and sodium and potassium dibutyl phosphites. Hydrolysis may be effected by heating with acid or alkali in aqueous or non-aqueous solution, e.g. concentrated hydrochloric acid and alcoholic potassium hydroxide.
GB1273952A 1952-05-20 1952-05-20 Improvements in cation-exchange resins Expired GB726925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1273952A GB726925A (en) 1952-05-20 1952-05-20 Improvements in cation-exchange resins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1273952A GB726925A (en) 1952-05-20 1952-05-20 Improvements in cation-exchange resins

Publications (1)

Publication Number Publication Date
GB726925A true GB726925A (en) 1955-03-23

Family

ID=10010216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1273952A Expired GB726925A (en) 1952-05-20 1952-05-20 Improvements in cation-exchange resins

Country Status (1)

Country Link
GB (1) GB726925A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027226A (en) * 1957-09-12 1962-03-27 Abitibi Power & Paper Co Recovery of base from waste liquor
US4324917A (en) * 1980-08-28 1982-04-13 Texaco Inc. Preparation of polyalkylene polyamines
US4394524A (en) * 1981-08-31 1983-07-19 Air Products And Chemicals, Inc. Preparation of polyalkylene polyamines from ammonia, alkyleneamine, and alkanolamine
US4894407A (en) * 1983-08-26 1990-01-16 University Of Utah Composition for extracting gold and silver anions from alkaline solutions and processes for making same
CN116120561A (en) * 2022-12-26 2023-05-16 宁波争光树脂有限公司 Phosphoric acid resin and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027226A (en) * 1957-09-12 1962-03-27 Abitibi Power & Paper Co Recovery of base from waste liquor
US4324917A (en) * 1980-08-28 1982-04-13 Texaco Inc. Preparation of polyalkylene polyamines
US4394524A (en) * 1981-08-31 1983-07-19 Air Products And Chemicals, Inc. Preparation of polyalkylene polyamines from ammonia, alkyleneamine, and alkanolamine
US4894407A (en) * 1983-08-26 1990-01-16 University Of Utah Composition for extracting gold and silver anions from alkaline solutions and processes for making same
CN116120561A (en) * 2022-12-26 2023-05-16 宁波争光树脂有限公司 Phosphoric acid resin and preparation method thereof

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