| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b2e6e9b77e9bf67691925a7e39693457 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B59-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 |
| filingDate |
2015-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2016-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eff8f1b6b22a263cabc97b319ea882b2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7264e82c19c930a45a911d66fcda7c6e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9eb47f4dd38efe6cef220b59c4c2df5e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37eb0793808abcac6cc83d7b719676e9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d9bea9ffa751dffc481307303ea3ee6 |
| publicationDate |
2016-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-101662445-B1 |
| titleOfInvention |
The selective leaching method of only the rare earth elements in the NdFeB magnet scrap |
| abstract |
The present invention relates to a method of selectively dissolving only rare earth elements in NdFeB magnet scrap. Scraps cut and ground by a manufacturing process of an NdFeB magnet spontaneously ignites a fire on fine powder during a combustion of organic matters. The product scrap is formed with individual elements while collapsing a structure of being combined with the NdFeB magnet by spontaneously igniting fire after finely pulverizing the product scrap after oxidizing the scrap at 1000C. The present invention selectively dissolves only rare earth elements by heating oxide up to 1000C so that oxidized -Fe_2O_3 becomes -Fe_2O_3 which is not dissolved by acid after finely pulverizing the oxide, generated by a spontaneous ignition reaction, again; and by heating oxidized scrap treated at high temperatures into dilute nitric acid at a temperature equal to or greater than 50C. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111187927-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20220077290-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022242185-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111575509-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114427042-A |
| priorityDate |
2015-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |