http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4732710-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ba9d112bd5997e7cef959c462c4469ad |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-06 |
| filingDate | 1983-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1988-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e81cf277a8c312a424824ae6a265ee4f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c03c162ba3683c9c2f5ddc44c7b411d6 |
| publicationDate | 1988-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4732710-A |
| titleOfInvention | Process for the preparation of an anhydrous and aqueous 3-chloro-2-sulfopropionic acid reagent and isolation of the crystalline acid |
| abstract | An improved and novel process for the preparation of an aqueous 3-chloro-2-sulfopropionic acid reagent involves the formation of a reaction mixture by adding acrylic acid to chlorosulfonic acid maintained at about 45° to 130° C., maintaining the mixture at about 60°-130° C. for about 2-6 hours, and adding sufficient water to the resulting anhydrous reagent to decompose the unreacted chlorosulfonic acid and dilute the reagent to a solids content of about 50-95%, preferably 70-90%. The reagent may be vacuum stripped to remove residual hydrochloric acid. Crystalline 3-chloro-2-sulfopropionic acid may be isolated from the aqueous reagent at a solids content above 80% and below 95%, preferably at 85%. |
| priorityDate | 1981-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.