http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102127656-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_089d40759d5e23b2760341e8f5fd5ce8 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-22 |
| filingDate | 2010-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_110d35be9ec850b41517919a0af68530 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc46bd0f5a2ad06d3942c4a16b2cf94e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c85e85f56f1fc34dcceff0a3a449da7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0902dc99924350b2a33741728377bc72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eadf2773b8d17bce954e9fe562a270d1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32f86b36b034337ecf054a98b9a87a85 |
| publicationDate | 2013-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102127656-B |
| titleOfInvention | Method for decomposing vanadium slag by liquid phase oxidation |
| abstract | The invention relates to a method for decomposing vanadium slag by liquid phase oxidation. The method comprises the following steps of: weighing materials according to a mass ratio of NaOH to NaNO3 of 0.2:1-4:1 and the mass ratio of the total amount of the NaOH and the NaNO3 to the vanadium slag of 2.5:1-6:1; placing the weighed NaOH and NaNO3 into a normal-pressure reaction kettle; heating to the temperature of between 330 and 480 DEG C; adding the weighed vanadium slag into NaOH-NaNO3 molten salt; introducing oxidizing gas; performing liquid phase oxidation reaction at the temperature of between 330 and 480 DEG C for 0.5 to 6 hours to obtain reaction slurry; diluting the reaction slurry with a diluting agent until the sodium hydroxide concentration of feed liquid is between 100 and 500g/L to obtain mixed slurry of sodium hydroxide, sodium nitrate, sodium vanadate, sodium chromate and tailings; and performing filtering separation to obtain the tailings and aqueous solution containing vanadium and chromium. The method has a low reaction temperature, high safety and high utilization rate of vanadium and chromium resources, is operated under normal pressure and is easy to industrially implement, and the vanadium and the chromium in the vanadium slag are extracted together; and the decomposed tailings comprise 0.5 to 1 weight percent of vanadium (based on V2O5) and 0.5 to 1 weight percent of chromium (based on Cr2O3). |
| priorityDate | 2010-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.