http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107312928-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/C22B3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B30-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B30-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-12 |
| filingDate | 2017-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107312928-B |
| titleOfInvention | A kind of method that arsenic sulfide slag prepares pentavalent arsenic leachate |
| abstract | The present invention provides a kind of arsenic sulfide slags for the method for pentavalent arsenic leachate, comprising the following steps: (1) is successively alternately added alkaline solution and oxidant into arsenic sulfide slag, is dissolved and aoxidized, be separated by solid-liquid separation, obtain filtrate；The pH value of the dissolution and oxidation process system is 7~14；(2) filtrate and oxidant are mixed and carries out oxidation reaction, be separated by solid-liquid separation, obtain pentavalent arsenic leachate；The endpoint pH of the oxidation reaction is 1~7.The present invention is successively alternately added alkaline solution and oxidant into arsenic sulfide slag, so that the arsenones in arsenic sulfide slag is constantly dissolved and is aoxidized, then obtain pentavalent arsenic leachate by deep oxidation.Embodiment the result shows that, arsenic content is high in the resulting leachate of the present invention, is easy to consolidate arsenic method by scorodite and fixes the arsenic in leachate, arsenic content is only 0.5wt% or so in remaining filter residue. |
| priorityDate | 2017-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.