http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-299996-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G23-0538 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-3607 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G23-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C1-36 |
| filingDate | 1964-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1964-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-299996-A1 |
| titleOfInvention | A METHOD FOR PREPARING A TITANIUM DIOXIDE PRODUCT |
| abstract | A method for preparing an acicular, crystalline, titanium dioxide product of pigment quality, characterized in that: (a) an aqueous colloidal suspension of titanium dioxide forming nuclei of seed particles is mixed with a solution of titanium chloride acid having a minimum chloride/titanium ratio of 4, a minimum hydrogen/titanium ions ratio of 4, and a titanium concentration between 50 and 85 grams per liter, said colloidal suspension providing between 4 and 10% by weight of the amounts of titanium in the resulting mixture and said colloidal suspension being prepared by heating an aqueous titanium chloride solution having a chloride/titanium ratio between about 1.5 and about 4, a pH between 0.3 and 0.7 and a concentration of titanium between 8 and 30 grams per liter; (b) said mixture is heated to hydrolyze the titanium chloride present therein and precipitate the amounts of titanium; (c) said amounts of precipitated titanium are separated from the reaction mixture; and (d) the precipitate is calcined at a temperature between 700 and 900ยบ C for a period between 0.5 and 6 hours to thereby prepare said crystalline acicular titanium dioxide product. (Machine-translation by Google Translate, not legally binding) |
| priorityDate | 1963-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.