| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_46ffc67cd29dd51dbd0bc0e335dd3994 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-303
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-487 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-126
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-124
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-122
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 |
| filingDate |
1991-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1995-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f19a946686d8a1374fae7a54a119c421
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0eb45b14802abe8d9e5189c3d7f3c813
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a5b00700c58fad8780fb5b45c6ad801 |
| publicationDate |
1995-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5387713-A |
| titleOfInvention |
Process for purification of carboxylic acids |
| abstract |
Carboxylic acids produced by carbonylation and having iodide and oxidisable impurities are purified by contacting with hydrogen peroxide and recovering the purified acid by distillation or evaporation. Preferably a strong acid such as sulphuric acid is used as a catalyst. Product contamination by sulphur from sulphuric acid and by excess peroxide may be reduced by the use of metal salts in the recovery step. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7208625-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5777157-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10758838-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5653853-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008033206-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008051601-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7485749-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7524988-B2 |
| priorityDate |
1991-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |