http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104726705-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/C22B3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-32 |
| filingDate | 2013-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104726705-B |
| titleOfInvention | A kind of chromite leaches the method for carrying chromium |
| abstract | The present invention relates to the method that chromite pressure leaching carries chromium, comprise the following steps：Chromite and/or pretreated chromite are mixed to prepare original slurry with potassium hydroxide aqueous solution, wet chemical, the potassium metaaluminate aqueous solution；Obtained original slurry is added in autoclave, is passed through oxidizing gas, carries out pressure leaching oxidation reaction, obtains reacting disposed slurry；Through separation of solid and liquid, iron-rich tailings and the solution containing potassium chromate, potassium hydroxide, potassium carbonate, potassium aluminate and other water-solubility impurity components are respectively obtained.Of the invention to put forward chromium method, reaction temperature is greatly lowered, and energy consumption is small, effectively reduces production cost, and chromium recovery rate reaches as high as more than 97%；Additionally, autoclave volume used can be 200L, reaction medium is identical with industrial cycle feed liquid proportioning so that this process is with industrial process closely, it is easy to accomplish industrialization. |
| priorityDate | 2013-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.