| 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/B01D53-94
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-20 |
| filingDate |
1975-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1976-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
ES-435827-A1 |
| titleOfInvention |
PROCEDURE FOR ELEVATING THE ACTIVITY AND SE-LECTIVITY OF CATALYSTS CONTAINING PLATINUM METALLIC. |
| abstract |
A process for reactivating 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 |