http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102431975-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_53b4d53983adbf56dd0e7d0bf96f8ce5 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-04 |
| filingDate | 2011-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_710c338b46fd0be1c5e504b8a93364b9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f160cd8ffa88c827648fb83558fd266 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e8bcad6a1073746af3082973020f868f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69570c3df2d353e57b126c495314ae86 |
| publicationDate | 2013-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102431975-B |
| titleOfInvention | Method for recovering and utilizing three wastes during titanium white production through sulfuric acid process |
| abstract | The invention discloses a method for recovering and utilizing three wastes during titanium white production through a sulfuric acid process, which is characterized in that crystal water is removed from titanium white waste slag copperas, anhydrous titanium white waste slag is reduced and decomposed into ferrous oxide residue and sulfur dioxide gas by reducing agents in weak oxidization mixing atmosphere at high temperature, sulfuric acid prepared by sulfur dioxide gas returns the acidolysis work procedure in the titanium white production process, the decomposed ferrous oxide residue is directly used for neutralizing the 10 to 25 weight percent waste sulfuric acid generated in the titanium white production process, excessive ferrous oxide residues can be used as raw materials for producing ferric oxide series pigments and for steel plants, crystal water is removed from titanium white waste slag red gypsum, semihydrated gypsum is obtained, the semihydrated gypsum is reduced and decomposed into calcium oxide residue and sulfur dioxide gas by reducing agents in weak oxidization mixing atmosphere at high temperature, the sulfur dioxide gas can be used for preparing sulfuric acid, ferrous waste water and 0.1 to 10 percent waste sulfuric acid are neutralized by calcium oxide residues or quick lime, ferrous red gypsum is obtained through filtering, and the filter liquid can be reused. |
| priorityDate | 2011-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 60.