GB1530127A - Preparation of carboxymethyloxysuccinic acid - Google Patents
Preparation of carboxymethyloxysuccinic acidInfo
- Publication number
- GB1530127A GB1530127A GB41594/75A GB4159475A GB1530127A GB 1530127 A GB1530127 A GB 1530127A GB 41594/75 A GB41594/75 A GB 41594/75A GB 4159475 A GB4159475 A GB 4159475A GB 1530127 A GB1530127 A GB 1530127A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- calcium
- carboxymethyloxysuccinic acid
- preparation
- carboxymethyloxysuccinic
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C59/235—Saturated compounds containing more than one carboxyl group
- C07C59/305—Saturated compounds containing more than one carboxyl group containing ether groups, groups, groups, or groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/02—Preparation of carboxylic acids or their salts, halides or anhydrides from salts of carboxylic acids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1530127 Carboxymethyloxysuccinic acid FMC CORP 10 Oct 1975 41594/75 Heading C2C Carboxymethyloxysuccinic acid is prepared by reacting maleic and glycolic acids in aqueous basic media in the presence of calcium ions, acidifying the calcium salt formed at 40-80‹ C. with sulphuric acid to produce the free acid and calcium sulphate dihydrate the latter being removed and the acid recovered from its aqueous solution. A temperature of 60‹ to 65‹ C. is preferred and calcium hydroxide may provide the basic media and source of calcium ions. Reference has been directed by the Comptroller to Specification 1,327,115.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB41594/75A GB1530127A (en) | 1975-10-10 | 1975-10-10 | Preparation of carboxymethyloxysuccinic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB41594/75A GB1530127A (en) | 1975-10-10 | 1975-10-10 | Preparation of carboxymethyloxysuccinic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1530127A true GB1530127A (en) | 1978-10-25 |
Family
ID=10420422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB41594/75A Expired GB1530127A (en) | 1975-10-10 | 1975-10-10 | Preparation of carboxymethyloxysuccinic acid |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1530127A (en) |
-
1975
- 1975-10-10 GB GB41594/75A patent/GB1530127A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |