http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112111651-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/H01M10-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B23-043 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B26-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B47-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-008 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-007 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-54 |
| filingDate | 2020-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112111651-B |
| titleOfInvention | Fire recovery process of waste lithium-ion battery powder |
| abstract | The invention relates to a fire recovery process for waste lithium ion battery powder, and belongs to the technical field of resource recovery and utilization. The fire recovery process of waste lithium-ion battery powder includes the following steps: crushing and sieving the waste lithium-ion battery to obtain recycled powder mixed with positive electrode material and negative electrode material; mixing the powder, carbon-containing material and hydrogen ion salt Homogenization, roasting, roasting is carried out in two stages; the roasted product is dissolved in an alkaline solution with a pH of 10 to 11, and CO 2 is introduced to reach a pH of 8 to 9, filtered and washed to obtain a filtrate and a filter residue; after the filtrate is heated and evaporated , to obtain lithium carbonate; add sulfuric acid solution to the filter residue, control the reaction temperature and sulfuric acid concentration to carry out the reaction, after the reaction, filter to obtain a solution containing a valence metal. The method of the invention improves the recovery rate of valuable metals and the removal rate of fluorine, and the solution of nickel, cobalt and manganese can be obtained by direct acid leaching of the filter residue without adding an oxidant. |
| priorityDate | 2020-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.