| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e31a7bcbf6b7edcaf10cca6f5400387f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-845
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0237
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-025 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-403
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-4015
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-1815 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-50 |
| filingDate |
1996-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1997-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99d59c4650341c08bb2fcc926915d9f1 |
| publicationDate |
1997-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5698103-A |
| titleOfInvention |
Extraction of water-soluble metal chelates used as catalysts in sweetening sour hydrocarbon feedstocks |
| abstract |
Sweetening of sour hydrocarbon feedstocks by contacting with an aqueous solution of a metal chelate as an oxidation catalyst in the presence of oxygen is hindered by the difficulty of recovering metal chelate. Extraction of the aqueous phase with a liquid secondary amine with low water solubility removes a main portion of the metal chelate, usually a mixture of polysulfonated cobalt phthalocyanines, from the aqueous phase, and subsequent recovery of the chelate from the amine extract enables a viable alternative to feed bed processes. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008134837-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7686865-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105817265-A |
| priorityDate |
1996-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |