http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107641714-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B13-00 |
| filingDate | 2016-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107641714-B |
| titleOfInvention | Wet recovery processing method for lead-containing raw material |
| abstract | The invention discloses a method for recovering and treating a lead-containing raw material by a wet method, which comprises the following steps: 1) reacting a reaction mother liquor containing sulfate, a catalyst, a reducing agent, a complexing agent and a pH value of 6.0-13.0 with a lead-containing raw material to obtain a lead-containing reaction solution; 2) reacting the lead-containing reaction solution obtained in the step with a precipitator or a solution containing the precipitator, and controlling the pH value to be 4.5-11.0 to obtain a sulfur-containing reaction solution and a solid precipitate A; 3) reacting all or part of the sulfur-containing reaction liquid with a desulfurizing agent or a solution containing the desulfurizing agent to obtain regenerated reaction liquid and a solid precipitate B; the solid precipitate A is one or more of lead carbonate, basic lead carbonate, NaPb2(CO3)2OH, lead sulfite and lead sulfate, and the solid precipitate B is one or more of calcium sulfate, calcium sulfate dihydrate and barium sulfate. |
| priorityDate | 2016-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 302.