http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100463799-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B59-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 |
| filingDate | 2001-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2004-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100463799-B1 |
| titleOfInvention | A method for manufacturing of cerium carbonate from the cerium hydroxide |
| abstract | The present invention relates to a method for producing cerium carbonate from cerium hydroxide which produces a high purity cerium carbonate by producing an aqueous solution of cerium chloride from cerium hydroxide and then adding ammonium carbonate to the aqueous solution of cerium chloride.n n n This is particularly the case of dissolving cerium hydroxide in hydrochloric acid to form an aqueous cerium chloride solution; Reducing the cerium chloride aqueous solution using hydrogen peroxide; Removing the Fe component contained in the aqueous solution of cerium chloride: and adding ammonium carbonate to the aqueous solution of cerium chloride.n n n Accordingly, in the preparation of aqueous solution of cerium chloride, partially oxidized tetravalent cerium hydroxide is reduced to trivalent cerium hydroxide, thereby improving the production yield of the raw material of cerium carbonate, and increasing the purity of the starting material by removing the Fe component by acidity control. By adding an appropriate concentration of ammonium carbonate, cerium carbonate is easily prepared at a low reaction temperature. |
| priorityDate | 2001-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.