http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103305695-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1fefd66fdbc3870bbaa8e5a4f87bdb0a |
| 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/C01G21-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y40-00 |
| filingDate | 2013-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eab9a4e64ec882943fc0710c825ca41f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e971e6529e7e5315de899e53a7344a0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61ebe338899627aba941224fa97d96a2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3230d602eedd682e49ee6af2fc2570c6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_436c9c49a8f29f1b17dd90ddc304420e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ced78c2f48c4e20766551c19432eec6c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1d74bc75a21062b0e31566532f5a3f30 |
| publicationDate | 2014-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103305695-B |
| titleOfInvention | Method for preparing nano-lead dioxide powder from waste lead paste by wet process |
| abstract | The invention discloses a method for preparing nano-lead dioxide powder from a waste lead paste by a wet process. The method comprises desulfurization leaching of the lead paste, preparation of a soluble lead-containing solution and preparation of the nano-scale lead dioxide powder. The waste lead paste is firstly mixed with a solution containing a desulfurizing agent, solid-liquid separation is performed after reaction, byproducts are recovered after crystallization of filtrate, the obtained solid substances react with a water solution of an acid reagent, and a reducing agent is simultaneously added. After the end of the reaction, the solid-liquid separation is performed, the obtained filtrate is mixed with an oxidant in an alkaline environment, a surfactant can be also added for reaction, after the completion of the reaction, the pH value is further regulated to 6-8, the solid-liquid separation, washing and drying are performed to obtain the nano-scale lead dioxide, and the filtrate is crystallized to obtain the byproducts. According to the method, the nano-scale lead dioxide with higher performance can be prepared under normal temperature conditions, the waste lead paste can be directly used as the raw material, the reaction raw material is low in price and easy to obtain, the circulating utilization of the waste lead paste is realized, and the secondary pollution is further avoided. |
| priorityDate | 2013-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.