http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3309049-C2
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C301-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-17 |
| filingDate | 1983-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1986-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1986-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-3309049-C2 |
| titleOfInvention | Process for the preparation of α-sulfo fatty acid alkyl ester salts |
| abstract | A process is described for the preparation of α-sulfofatty acid alkyl esters by 1) sulfonating at least one fatty acid alkyl ester with gaseous sulfur trioxide, advantageously at a temperature of 40-80 ° C. using 1.0-1.8 mol (s) of gaseous sulfur trioxide, based on 1 mol ester, 2) mixing the sulfonation product obtained with a liquid mainly containing an α-sulfo fatty acid ester, the amount of α-sulfo fatty acid ester being such that the content of a double molecule SO ↓ 3 addition product in the mixture is 25% by weight. -% or less, and 3) aging the resulting mixture. The α-sulfo fatty acid esters obtained are (only) pale in color and contain only a small amount of by-products. |
| priorityDate | 1982-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.