http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101185718-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-64 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-146 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-146 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-141 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B24B37-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-148 |
| filingDate | 2005-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2012-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2012-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101185718-B1 |
| titleOfInvention | Method for producing high purity colloidal silica |
| abstract | The present invention provides a high-efficiency removal method of high-purity colloidal silica with low removal efficiency of metallic impurities such as Cu, Mn, Ni, Fe, Zn and Cr contained in an aqueous alkali silicate solution which is a raw material of colloidal silica. In the method of the present invention, a chelating agent mixing process of obtaining a colloidal silica solution containing a chelating agent by mixing a chelating agent having a nitrogen atom or a phosphorus atom with an aqueous colloidal silica solution and a colloidal silica solution containing the chelating agent are anion exchangers. And an anion exchanger contacting step of bringing into contact.n n n Colloidal Silica, Alkali Silicate Aqueous Solution, Chelating Agent |
| priorityDate | 2004-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 87.