http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111252796-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-72 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-247 |
| filingDate | 2020-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111252796-B |
| titleOfInvention | Method for preparing crystal form controllable high-purity rare earth carbonate |
| abstract | The invention provides a method for preparing high-purity rare earth carbonate with controllable crystal form, which prepares the high-purity rare earth carbonate with controllable crystal form through two steps of reaction crystallization and intensified aging. Firstly, slurry obtained by reacting and crystallizing a rare earth solution and a carbonate solution enters an intensified aging working section, and after intensified aging is carried out in the presence of carbon dioxide, a filter cake is filtered, washed and dried to obtain the low-chlorine high-purity rare earth carbonate with good crystal form. According to the preparation method of the high-purity rare earth carbonate with the controllable crystal form, the obtained rare earth carbonate has a good crystal form, is good in shape and size controllability, is easy to filter and is convenient for industrial implementation; in addition, the prepared rare earth carbonate has high purity and high added value of products; the method is suitable for preparing all rare earth element carbonates, is a preparation method with strong universality, and is suitable for large-scale industrial popularization. |
| priorityDate | 2020-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.