GB726925A - Improvements in cation-exchange resins - Google Patents
Improvements in cation-exchange resinsInfo
- 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
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
- C08F8/40—Introducing 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.
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)
| 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 |
-
1952
- 1952-05-20 GB GB1273952A patent/GB726925A/en not_active Expired
Cited By (5)
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB726925A (en) | Improvements in cation-exchange resins | |
| SE7910350L (en) | PROCEDURE FOR PREPARING VINYL CHLORIDE POLYMES | |
| JPS5676408A (en) | Block copolymer | |
| GB1497237A (en) | Production of vinyl chloride polymers | |
| GB631738A (en) | Preparation of amphoteric amides of acrylic acid and their polymers | |
| GB748234A (en) | Improvements in cation-exchange resins | |
| US2916510A (en) | Process for producing phosphinic acid phostones | |
| GB1162899A (en) | Process for the Manufacture of Unsaturated Phosphonic Acid Dichlorides | |
| ES389820A1 (en) | Procedure for preparing a composition of self-extinguishing polymer. (Machine-translation by Google Translate, not legally binding) | |
| SU396348A1 (en) | Method of producing phosphonic acid cation exchanger | |
| GB726918A (en) | Improvements relating to cation-exchange resins and processes | |
| GB713669A (en) | Improvements in or relating to the production of dialkyl alkane-phosphonates | |
| EP0061106A3 (en) | Process for preparing oligophosphonic acids or oligophosphinic acids, their salts and/or esters, as well as phosphonic and phosphinic acid derivatives | |
| GB443855A (en) | Improvements in and relating to cables | |
| GB690463A (en) | Alkyl riboflavin phosphates and process for the manufacture thereof | |
| CH612691A5 (en) | Process for the polymerisation of vinyl chloride in aqueous suspension | |
| SU465399A1 (en) | The method of obtaining the sodium salts of 2-methoxy-β-carboxyethyl-1-ox-6-azaspiro (4,4) -nonane | |
| GB308658A (en) | Improvements relating to cellulose ether compositions | |
| GB1143930A (en) | Process for the preparation of an acid fluoride and of corresponding esters | |
| IE40478B1 (en) | Brominated phosphonic acid ester, process for its preparation and flame resistant plastics materials containing it | |
| GB1465143A (en) | Bromine-containing telomeric phosphonic acid esters | |
| GB789952A (en) | Ion exchange resins | |
| GB812983A (en) | New polymerisable ester and polymers obtained therefrom | |
| SU425916A1 (en) | Method of producing dichloroanhydride of r-sulpholanyl phosphonic acid | |
| CA742251A (en) | Process for the production of phosphoric, phosphonic, phosphinic or thiophosphoric, -phosphonic, -phosphinic acid esters |