http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103849765-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-44 |
| filingDate | 2012-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103849765-B |
| titleOfInvention | A kind of precipitate and separate and the method reclaiming vanadium and chromium in vanadium chromium solution |
| abstract | The present invention relates to a kind of precipitate and separate and the method reclaiming vanadium and chromium in vanadium chromium solution; step comprises: regulator solution pH is for acid; add ammonium salt vanadium most of in solution is precipitated out with the form of ammonium poly-vanadate; after filtration; in precipitation supernatant liquor, add a certain amount of reductive agent the part vanadium in solution is carried out precipitate reduction; to stir and after filtering; add remaining vanadium in a certain amount of reductive agent precipitate reduction solution again; then filter; collect the filter residue of two step precipitate reductions, after carrying out oxidation stripping, turn back to ammonium salt precipitation step; Collect the supernatant liquor of two step precipitate reductions, again add a certain amount of reductive agent precipitation chromium hydroxide, filter and prepared by chromium sesquioxide to filter cake calcining.Clear liquid after precipitation chromium hydroxide can be used as the mother liquid recycling leaching operation.Operation of the present invention is simple, and with low cost, number of devices is few, and added amount of chemical is little, waste water reusable edible. |
| priorityDate | 2012-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.