| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5b3d6aa79d32a3cccdfe41f6984e2d43 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B21-1418
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-94
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-20 |
| filingDate |
1975-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1978-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0882bb9b5dd0dfd24759c0a934c238d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dcff0f803f722d243dc81f2152d192dc |
| publicationDate |
1978-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1043761-A |
| titleOfInvention |
Process for reactivating platinum catalysts |
| abstract |
ABSTRACT OF THE DISCLOSURE A process for rejuvenating platinum catalysts is disclosed. It comprises treating a platinum catalyst having reduced activity and selectivity (a) in a first stage with an acid solution of a sulfur compound which liberates sulfurous acid in acid medium, and a hydroxylammonium salt, said treatment being conducted in the absence of oxidizing agents capable of oxidizing sulfurous acid to sulfate, and (b) in a second stage with an acid solution of platinum (II) or platinum (IV) compounds in the presence of hydrogen. |
| priorityDate |
1974-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |