http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2750429-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_acac30e35a7f435a991f3cf2b620a2ed |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B1-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B1-00 |
| filingDate | 2021-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f57693b572d14bebe4d81db81407f68f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ecd0c8d7293315f63cd72ffaac1badc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_90aa81d030eb6c11a064dc92b50a622f |
| publicationDate | 2021-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2750429-C1 |
| titleOfInvention | Method for obtaining magnetite |
| abstract | FIELD: metallurgy. n SUBSTANCE: invention relates to the field of metallurgy and can be used to obtain magnetite in order to increase the efficiency of processing red mud, which is a waste of alumina production. Autoclave processing of red mud is carried out at a temperature of 230-250°C and a pressure of 27-50 MPa in the presence of a reducing agent and a 30% sodium hydroxide solution with the introduction of calcium hydroxide, the content of which is 2.0-2.5 wt.% in terms of СаО from the mass of the original sludge. As a reducing agent, aluminum granules are used in an amount of 10-25 wt.% Of the weight of the original sludge. After that, it is cooled, diluted with distilled water at a temperature of 80-90°C until the ratio L:T = (10-11):1 is obtained and filtered. n EFFECT: invention provides high conversion of hematite to magnetite. n 1 cl, 2 ex |
| priorityDate | 2021-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.