http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BR-112020022626-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_914e93db766a009955062ab5bfe16059 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-3661 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-363 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-3623 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-1213 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-3607 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G23-0538 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G23-053 |
| filingDate | 2018-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_409ec646cb2e186dc91335793d712204 |
| publicationDate | 2021-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | BR-112020022626-A2 |
| titleOfInvention | process for the production of titanium dioxide pigment by digesting raw materials containing titanium in hydrochloric acid in the presence of a fluorine-based substance |
| abstract | a process for the production of pigment-grade titanium dioxide is disclosed, including: (a) the digestion in acid, under atmospheric pressure, of a titanium raw material using a substance containing fluoride and in the presence of metallic iron; (b) the solid / liquid separation; (c) the precipitation of ferrous chloride; (d) centrifugation; (e) thermal hydrolysis of the resulting titanium using boric acid as a hydrolysis aid; (f) the washing and acid treatment of titanyl hydroxide in the presence of small amounts of hydrochloric acid and powdered aluminum; (g) filtration, followed by a second washing step; (h) calcination in air of the washed titanyl hydroxide; (i) grinding, surface treatment, in the presence of small amounts of silica and alumina, of the calcined material; (j) the micronization of the material treated on the surface. the product obtained by applying this process has very high gloss and opacity, as well as excellent coating properties. as a result, it serves as an ideal pigment to be used in the production of paints, plastics, rubber and paper. the defined process stands out as a promising alternative to the existing titanium dioxide manufacturing processes. |
| priorityDate | 2018-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 79.