| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_51c974cedbde502517415bb87efa4e0c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S505-81
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S502-516
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-225
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G49-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B23-026 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G49-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G53-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G31-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G53-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B23-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-92
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-22 |
| filingDate |
1978-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1981-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05895e12fc5e7dc5ccc3e8e90d4b880a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f0682dd7882c6b8c664ce9a92d74562
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c4febebe320141a7af6b995dbec0ee8 |
| publicationDate |
1981-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1098714-A |
| titleOfInvention |
Process for recovering vanadium accumulated on spent catalyst |
| abstract |
Abstract of the Disclosure This invention relates to a process for selectively recovering vanadium from spent catalysts which were used in hydrodesulufurization, hydrodemetallization, etc. of heavy oils until metals in said heavy oils accumulated thereon. More particularly, it relates to a process for recovering vanadium, and if desired, vanadium along with nickel from spent catalysts in such a way that said spent catalysts are chlorinated with chlorinating agent(s) at a temperature below 600°C without being subjected to calcination so as to convert almost all the vanadium compounds to vanadium tetrachloride which is recovered in the form of a gas, including the chlorination of nickel compounds to nickel chloride which can also be recovered as such by solvent extraction. |
| priorityDate |
1977-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |