| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b1d2d7c298eb382a73794f297168f3cc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_94243bde2c9d898175a4313921f23f2c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-3607
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G23-053
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G23-047
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-1245
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-1213
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-1259
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G23-0536 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C1-36 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G23-053
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G23-047
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-12 |
| filingDate |
2010-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_938679e68a80aa40eceea3878b25f4d7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0441a292444db09562218283f9e4d9bc |
| publicationDate |
2012-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2474633-A1 |
| titleOfInvention |
Titaniumrich hydrochloric acid leaching residue use thereof and preparation method of titanium dioxide |
| abstract |
Enriched titanium hydrochloric acid extract residue is provided, for use as the feed stock in the preparation of titanium pigment by sulfuric acid process. The present invention belongs to the field of the preparation of titanium pigment and particularly, relates to the enriched titanium hydrochloric acid extract residue prepared from ilmenite by hydrochloric acid leaching, its use and the method of preparing titanium pigment. The method for preparing titanium pigment using the enriched titanium hydrochloric acid extract residue can effectively utilize the fine ilmenite in Panxi area (the utilization rate is almost 100%), obtain the titanium sulfate solution with an ultralow ratio of iron to titanium dioxide (Fe/TiO2) and double the throughput of digesting equipment. Said method can simultaneously spare two steps of iron removal by freezing and titanium sulfate solution concentration with much energy consumption, reduce the times of washing with metatitanic acid, thereby, both of the discharge of acid waste water and the production of FeSO 4 are reduced. Said method provides a feed stock selection for preparing titanium pigment by sulfuric acid process. |
| priorityDate |
2009-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |