http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111705226-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/C22B1-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-1213 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B1-00 |
| filingDate | 2020-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111705226-B |
| titleOfInvention | Method for removing impurities from high-titanium slag |
| abstract | The invention relates to a method for removing impurities from high-titanium slag, which comprises the following steps: step 1, adding high titanium slag with the granularity of 0.02 mm-0.1 mm and a nitric acid solution into a reaction kettle, introducing oxygen into the reaction kettle, simultaneously heating to above 130 ℃, then preserving heat for at least 1h under the stirring condition, and cooling to obtain a first material; wherein the mass concentration of the nitric acid solution is 10-30%; the total pressure in the reaction kettle is 0.5-1.9 Mpa, and the oxygen partial pressure in the reaction kettle is more than 0.25 Mpa; the stirring speed is 250r/min to 800 r/min; and 2, filtering the first material obtained in the step 1 to obtain a filtrate and a filtrate, and washing the filtrate with water until the washing liquid is neutral to obtain the high-titanium slag after impurity removal. The inventor controls the mutual cooperation of various factors such as oxygen partial pressure, temperature, heat preservation time, nitric acid concentration, stirring speed and the like in the reaction kettle, so that the impurity removal effect is good, high-purity high-titanium slag can be obtained, and the method has the advantages of low energy consumption and low equipment requirement. |
| priorityDate | 2020-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.