http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2898071-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8c4a00f6f841eb61976b2326585125d7 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B59-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F17-282 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F17-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B59-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F17-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F17-212 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F17-206 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F17-17 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-282 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-212 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-42 |
| filingDate | 2017-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f1c9f7756bd545664a085027341ce6c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7767c5514aedf634f3386c47d74e79f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a9e657211a5cab0fb7a8157c05690c13 |
| publicationDate | 2022-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2898071-T3 |
| titleOfInvention | Production of a concentrate containing scandium and subsequent extraction of high purity scandium oxide from it |
| abstract | A process for producing a scandium-containing concentrate from a red mud, said process comprising filtering the red mud from a liquid phase, repulping a red mud cake with a recirculated sodium bicarbonate solution, gasifying the solution with carbon dioxide carbon to pH <= 9, leach red mud with sodium bicarbonate solution, filter and wash red mud cake with water on filter, sorb scandium from filtrate on phosphate ion exchanger , after which the recirculated solution is recycled to repulping red mud cake, desorbing scandium from phosphate ion exchanger with strong soda solution at high temperature to obtain scandium-rich pickling, and at least one step of pickling hydrolysis to obtain a concentrate containing scandium in the second stage, characterized in that the leaching by carbonization of the red mud is carried out at the in a single step by using a solution with a mixture of sodium carbonate and bicarbonate, scandium is sorbed from the scandium-containing solution obtained in a phosphorus-containing ion exchanger, scandium is desorbed from an organic phase of the ion exchanger by using a sodium carbonate solution to obtain commercially regenerated scandium from which a scandium concentrate is precipitated, where the content of Sc2O3 therein is at least 15% by weight (in terms of dry matter), the TiO2 content is not more than 3% by weight (in terms of dry matter), the ZrO2 content is not more than 15% by weight (in terms of dry matter), and where scandium in the concentrate is in the form of a mixture of hydroxide Sc(OH)3 with basic salt ScOHCO3×4H2O. |
| priorityDate | 2016-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 101.