http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108557878-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3faeacea8af29411ba08915d496639b2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G23-07 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G23-07 |
| filingDate | 2018-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1066b068051b198895eb6c11eace2095 |
| publicationDate | 2018-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108557878-A |
| titleOfInvention | A kind of preparation method of titanium dioxide |
| abstract | The invention discloses a method for making titanium dioxide, which comprises the following steps: step 1: after grinding titanium-rich materials, add petroleum coke to the boiling furnace from above the boiling layer; step 2: add circulating chlorine gas returned from the oxidation process from the bottom of the furnace , the reaction gas first passes through the cyclone separator to separate the unreacted solid dust and non-volatile chloride from the reaction gas, and then conducts step-by-step cooling and condensation. First, the ferrous chloride is separated, and then the middle boiling point chlorine is separated. Compound ferric trichloride; step 3: use cold titanium tetrachloride spray method to condense and collect low-boiling titanium tetrachloride, remove mud through filtration, obtain thick titanium tetrachloride, add magnesium hydride in thick titanium tetrachloride powder to reduce the vanadium oxychloride and/or vanadium tetrachloride in the crude titanium tetrachloride to vanadyl dichloride and/or vanadium trichloride respectively. The invention produces the titanium dioxide through the chlorination method, so that the production method is simpler, the exhaust gas waste is less, the production cost of the titanium dioxide is reduced, and the economic benefit of the titanium dioxide industry is improved. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110655808-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110655808-B |
| priorityDate | 2018-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.