http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107012340-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/C22B30-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-007 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B30-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 |
| filingDate | 2017-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107012340-B |
| titleOfInvention | A kind of technique that Whote-wet method extracts arsenic from arsenones waste residue |
| abstract | The invention discloses a kind of Whote-wet methods to extract the technique of arsenic from arsenones waste residue, which is to be separated by solid-liquid separation arsenones waste residue by oxygen leaching, obtains sulphur slag and contains pentavalent arsenic and H 2 SO 4 Oxygen leaching liquid；Pentavalent arsenic is restored using arsenones waste residue as reducing agent, is separated by solid-liquid separation, obtains the solution containing trivalent arsenic and slag phase；Solution containing trivalent arsenic passes through crystallisation by cooling, dry, obtains the white product of arsenic, slag phase then returns to oxygen leaching.The technique has many advantages, such as short flow, economical and practical, good operational environment, solution closed circulation, and arsenic and sulphur content can be made with arsenic trioxide product and sulphur recovery, not to solve traditional SO 2 The problem of reduction causes acid plumping, is conducive to industrially promote and apply. |
| priorityDate | 2017-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.