http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110240122-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-72 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B17-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-06 |
| filingDate | 2019-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110240122-B |
| titleOfInvention | Method for one-step detoxification and sulfur recovery of arsenic sulfide slag |
| abstract | The invention discloses a method for one-step detoxification and sulfur recovery of arsenic sulfide slag, and belongs to the field of fixed stabilization and resource recycling of arsenic sulfide slag. The method comprises the following specific steps: 1) preparing a mixed solution containing iron ions and nitrate ions, adjusting the pH value, adding the mixed solution into arsenic sulfide slag, and fully stirring to obtain a mixed solution; 2) treating the solution obtained in the step 1) by a hydrothermal method; 3) after heating treatment, naturally cooling to room temperature, and standing; 4) obtaining solid slag and yellow caked solid, separating the solid slag and the yellow caked solid from the supernatant, washing the solid slag and the supernatant with water and drying the solid slag and the yellow caked solid, wherein the yellow caked solid is like elemental sulfur and can be recycled; 5) the filter residue is easy-to-precipitate large-particle (about 30 mu m) scorodite crystals, the arsenic leaching toxicity concentration (GB5085.3-2007) of the scorodite crystals can be reduced to be below 5mg/L, the scorodite crystals accord with the solid waste identification standard-leaching toxicity identification regulation, and the scorodite crystals can reach the hazardous waste landfill pollution control standard. The method has the advantages of simple process, low cost, quick response and higher social and economic benefits. |
| priorityDate | 2019-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 50.