http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114335781-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_08aadaca6bedd8d3de6acd4d57afbd6f |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-84 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-54 |
| filingDate | 2021-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b662735001558738e583457e543d7f98 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb69aa0ec475f0f17832c0cc95a0012c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_187a8db7f423fe545feff1b7a5e08aa2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a62a72874dbdcecf8d5edf1da808c30f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6a9b2da17bda5f28f770bfb265955c6 |
| publicationDate | 2022-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114335781-A |
| titleOfInvention | A method for extracting precious metals from waste lithium batteries |
| abstract | The invention belongs to the technical field of environmental protection, and provides a method for extracting precious metals from waste and used lithium batteries, comprising the following steps: disassembling the waste and used lithium batteries in protective gas to obtain active positive electrode materials and separators; The separator is cleaned and dried; the obtained active positive electrode material and separator are calcined in an oxygen-free environment to obtain a calcined positive electrode material; the calcined positive electrode material is added to the nitric acid leaching solution to recover metal metal ions Li and Co. The diaphragm in the waste battery is used as the reducing agent at high temperature, so that no reducing agents such as acids and alkalis are introduced to prevent environmental pollution; no precious metals are introduced as reducing agents to save energy. This process not only recovers the metal ions of the positive electrode material and solves the problem of precious metal recovery, but also treats the diaphragm, which solves the problem of waste plastic disposal, and achieves two birds with one stone. After roasting and leaching treatment, the metal leaching rate is above 94%. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114899522-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115784192-A |
| priorityDate | 2021-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.