http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108545706-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B19-004 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G3-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B19-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G3-02 |
| filingDate | 2018-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108545706-B |
| titleOfInvention | Treatment method of tellurium-containing waste liquid |
| abstract | The invention provides a method for treating tellurium-containing waste liquid, which comprises the following steps: s1, concentrating and crystallizing the tellurium-containing waste liquid to respectively obtain copper sulfate and crystallization mother liquor; the tellurium-containing waste liquid contains tellurium elements, copper elements and sulfuric acid; s2, reducing the crystallization mother liquor by using a reducing agent to respectively obtain tellurium copper slag and a reduced liquid; s3, carrying out acidic oxidation leaching on the tellurium copper slag by adopting an acid solution and an oxidant to obtain an acidic leaching solution; the acid solution is a hydrochloric acid solution or a sulfuric acid solution; s4, carrying out solid-liquid separation on the acidic leaching solution, adjusting the pH value of a liquid phase to 12-14 by using sodium hydroxide, and simultaneously heating to a boiling state for reaction to obtain an alkaline conversion solution; s5, carrying out acid hydrolysis on the alkaline conversion solution to obtain a tellurium dioxide product. The technical scheme realizes the step-by-step recovery of copper and tellurium, has good copper and tellurium separation effect, high comprehensive recovery rate of copper and tellurium, low cost and increased economic benefit. |
| priorityDate | 2018-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 78.