http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-148579-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4a0ce68268fec411497625d9be3f30e1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07G1-00 |
| filingDate | 1920-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1920-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-148579-A |
| titleOfInvention | Process for obtaining the salts of sulpho-acids and alkyl-sulphuric-acids from acid resins |
| abstract | Salts of sulphonic and alkyl-sulphuric acids are prepared by fractionally precipitating with an inorganic salt the emulsions or solutions of the acid resins obtained by treating mineral or tar oils with fuming sulphuric acid. In an example, the acid resin is agitated with a little water at 90-100 DEG C., cooled, filtered, and about one-tenth its weight of a saturated solution of common salt is added. The precipitate, consisting of neutral substances together with a small amount of sulpho acid salts, is filtered off and may be used as a substitute for asphalt. The remaining sulpho acids are precipitated by addition of larger quantities of common salt solution. The filtered salts are washed with salt solution and may be purified by treatment with alcohol, or with oxidizing agents such as permanganates. |
| priorityDate | 1919-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.