http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108191031-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-103 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-62 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-00 |
| filingDate | 2018-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108191031-B |
| titleOfInvention | Sulfur-free arsenical chalcanthite and application thereof in purifying trivalent arsenic wastewater |
| abstract | The invention relates to a sulfur-free arsenopyrite and application thereof in purifying trivalent arsenic wastewater, wherein the method for purifying the trivalent arsenic wastewater comprises the following steps: simultaneously feeding the trivalent arsenic wastewater and the trivalent iron solution, adjusting the pH value of the mixed solution to 1.41-2.45, stirring at normal temperature, and separating and precipitating to obtain the compound arsenic-free ferric iron phosphate, wherein the used medicines and reagents do not contain sulfate radicals. The precipitate obtained by the method is the vitriol with a chemical formula of Fe 6 (AsO 3 ) 4 (HAsO 3 )(OH) 4 ยท4H 2 And O, the crystal structure is the same as the crystal structure characteristic of the arsenopyrite, belongs to a mineral crystal structure, and can be applied to sulfate radical-free trivalent arsenic wastewater to form a precipitate so as to achieve the purpose of removing trivalent arsenic. |
| priorityDate | 2018-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.