http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102838158-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a3c03a5c525d47b6a80f2205cda179ce |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y30-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G9-02 |
| filingDate | 2012-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5cf85ae5d7a166c44f4d31311fec8f52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c878ce42df65e21a99255a7176fa57c9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c35518e8e2d6c293dc0e6670d74287b4 |
| publicationDate | 2014-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102838158-B |
| titleOfInvention | Method for producing high-purity nano-zinc oxide by ammonia decarburization of electrolytic zinc acid-leaching residues |
| abstract | The invention discloses a method for producing high-purity nano-zinc oxide by ammonia decarburization of electrolytic zinc acid-leaching residues, wherein when leaching, 0.3-0.5kg of sodium fluorosilicate is added to per cubic meter of ammonia-ammonium bicarbonate solution, and then 30-60kg of slaked lime is added to per cubic meter of a leaching agent for performing decarburization and refining treatment; the method can obtain nano-zinc oxide powder with the purity greater than and equal to 99.7%, uniform particle size distribution (wherein the average particle size is 10-30nm), the specific surface area greater than and equal to 105m<2>/g, and excellent fluidity and dispersibility; the treatment method provided by the invention has the characteristics of low energy consumption, high efficiency, and higher economic and social values; all the valuable and harmful heavy metals in the electrolytic zinc acid-leaching residues are leached to be rationally used and cleaned with water; and finally, the obtained final leaching residues are turned from the electrolytic zinc acid-leaching residues as high-risk wastes into general solid wastes, thereby creating good economic and social benefits. |
| priorityDate | 2012-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 73.