http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112795784-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/C22B59-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-1236 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B21-0023 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B26-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-006 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B26-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 |
| filingDate | 2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112795784-B |
| titleOfInvention | Method for comprehensively recovering valuable components in red mud |
| abstract | The invention provides a method for comprehensively recovering valuable components in red mud, which comprises the following steps: mixing red mud, ammonium sulfate and sulfuric acid, and roasting in an atmosphere containing water vapor to obtain roasted clinker and tail gas; leaching the roasted clinker to obtain a leaching solution and leaching residues; mixing the leachate with a reducing agent, adjusting the pH value after reduction reaction, and performing hydrolysis reaction to obtain metatitanic acid and hydrolysis mother liquor; extracting the hydrolysis mother liquor to obtain scandium-containing extract liquor and raffinate; adjusting the pH value of the raffinate to perform precipitation reaction to obtain mixed precipitate and precipitate mother liquor; and alkali dissolving the mixed precipitate to obtain an aluminate solution and a residual precipitate. According to the invention, through mixing and roasting the red mud, ammonium sulfate salt and sulfuric acid, valuable metals in the red mud are converted into soluble sulfate, and then the operations of reduction hydrolysis, extraction back extraction, precipitation, re-dissolution and the like are sequentially carried out, so that the efficient separation of valuable components is realized; the method is environment-friendly, low in equipment requirement, low in energy consumption and cost and good in economic benefit. |
| priorityDate | 2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 79.