GB748234A - Improvements in cation-exchange resins - Google Patents
Improvements in cation-exchange resinsInfo
- Publication number
- GB748234A GB748234A GB2820353A GB2820353A GB748234A GB 748234 A GB748234 A GB 748234A GB 2820353 A GB2820353 A GB 2820353A GB 2820353 A GB2820353 A GB 2820353A GB 748234 A GB748234 A GB 748234A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphorus
- cation
- halo
- exchange resins
- groups
- 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 halo-methylated copolymer of a compound containing one double bond and a cross-linking agent, by reacting the halo-methyl groups with phosphorus tri-chloride in the presence of a Friedel-Crafts catalyst and hydrolysing the phosphorus chloride groups thus introduced into the resin. Preferred copolymers are those of styrene and/or acenaphthylene and divinyl benzene, di-vinyl ketone or dibenzyl. Preferably, the copolymer, which may be in bead form, is swollen, e.g. with nitrobenzene or phosphorus trichloride, before the reaction with phosphorus trichloride. Hydrolysis may be effected by heating with acid or alkali in aqueous, e.g. sodium hydroxide, or non-aqueous solution.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2820353A GB748234A (en) | 1953-10-13 | 1953-10-13 | Improvements in cation-exchange resins |
| DE1954P0012850 DE947206C (en) | 1953-10-13 | 1954-10-13 | Process for the production of cation exchange resins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2820353A GB748234A (en) | 1953-10-13 | 1953-10-13 | Improvements in cation-exchange resins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB748234A true GB748234A (en) | 1956-04-25 |
Family
ID=10271938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2820353A Expired GB748234A (en) | 1953-10-13 | 1953-10-13 | Improvements in cation-exchange resins |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE947206C (en) |
| GB (1) | GB748234A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR960585A (en) * | 1942-08-11 | 1950-04-20 |
-
1953
- 1953-10-13 GB GB2820353A patent/GB748234A/en not_active Expired
-
1954
- 1954-10-13 DE DE1954P0012850 patent/DE947206C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE947206C (en) | 1956-08-09 |
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