| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f25974d99b07d8fff616eb59cf86d2c3 |
| 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/C22B3-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-06 |
| filingDate |
2013-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ad70b97779fa93448ac15e4fb7e87c2c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_abf32df458bc32c94b8b6db9cf0f5575
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f0f843280219c355f4cdefeac5856f4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da27f79014ab1f25c0a6267aa2d23926
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4587bfa688347f62f4baab741a09b016
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e23de5a5d1205dcde72687120c724b9 |
| publicationDate |
2017-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
MA-38445-B1 |
| titleOfInvention |
Process for extracting rare earth metals |
| abstract |
The present invention relates to a process for the complex treatment of apatite concentrate resulting in the production of rare earth metal concentrate (rem) and plaster from phosphogypsum, a sulfuric acid waste technology for producing sulfuric acid. phosphoric acid from apatite. The process consists of recrystallizing calcium sulfate hydrate or anhydrite from calcium sulfate dihydrate in the presence of a soluble calcium salt at concentrations between 0.075 and 3.75 m (in terms of ca |
| priorityDate |
2013-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |