| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1d1794e9681e3f52f0e4c813abd5d6ce |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-60 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G23-0534
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-363 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C1-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G23-053 |
| filingDate |
1969-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1971-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa57068fa439d8c5a99d8805f4d53b45
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0757b6a92d620ae466f4929be7268e7a |
| publicationDate |
1971-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3615204-A |
| titleOfInvention |
Preparation of anatase titanium dioxide pigment |
| abstract |
This invention relates in general to a process for preparing a high-quality titanium dioxide pigment in which the titanium dioxide is in the anatase crystal form. The process comprises hydrolyzing in a particular manner the titanium values from a titanium sulfate-ferrous sulfate solution in which the concentration of titanium is from 80 to 180 g.p.l. TiO2 and the FeSO4/TiO2 ratio is from 2.20 to 2.75 and treating and calcining the hydrate so formed to produce a high-grade anatase TiO2 pigment. Using the hydrolysis process of the instant invention, a high-grade anatase titanium dioxide pigment may be produced from a solution which does not require the conventional crystallization step to remove most of the iron values and the concentration step to increase the titanium content in the liquor to at least 200 g.p.l. TiO2. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010150852-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8021634-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3728431-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6187438-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5630995-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4505886-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009311153-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4275040-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9198843-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4183768-A |
| priorityDate |
1969-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |