http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111979415-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-84 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B23-0461 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-008 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B23-0407 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B26-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B23-0446 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B26-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-54 |
| filingDate | 2020-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111979415-B |
| titleOfInvention | A kind of recovery method of waste lithium cobalt oxide cathode material without strong acid leaching |
| abstract | The invention discloses a method for recycling waste and old lithium cobalt oxide positive electrode materials without strong acid leaching, comprising the following steps: S1, taking waste and old lithium cobalt oxide positive electrode sheets, immersing them in a strong alkaline solution, and performing solid-liquid separation for the first time, Drying the solid phase part to obtain crude lithium cobalt oxide powder; S2, mixing the crude lithium cobalt oxide powder with polyvinyl chloride, and calcining at 230 ° C ~ 350 ° C to obtain a mixed powder; S3, adding water to the mixed powder for water immersion treatment, and the second solid-liquid separation is performed; S4, the liquid phase part obtained by separation is oxidized to obtain cobalt oxide precipitation. The method can effectively avoid the use of strong acid leaching, reduce toxic gas emissions from the root cause, and reduce secondary pollution; the recovery rate of cobalt in the embodiment of the present invention can reach more than 90%, which is significantly better than the prior art level, and the obtained It has made great progress and can generate significant economic value. At the same time, it has further reduced the impact of waste of resources and environmental pollution caused by waste cobalt metal. |
| priorityDate | 2020-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 50.