http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110015689-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_203656ad8e56307327516ac9f28ad033 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G37-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G37-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G37-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G37-08 |
| filingDate | 2019-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4a8ca8fba7c15d0cc9e8ed1e620bb9c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15eee632af07c22121a24c224f65c3a7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1e84e6ecf913a41173ca664d81504e9 |
| publicationDate | 2019-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110015689-A |
| titleOfInvention | Production process of high-carbon ferrochromium for clean production of chromium oxyhydroxide and chromium salt series products |
| abstract | The invention belongs to the technical field of development and utilization of chromite, in particular to a production process for cleanly producing chromic oxyhydroxide and chromic salt series products with high-carbon ferrochromium. First, grind high-carbon ferrochromium to 200 mesh to 350 mesh, add dilute sulfuric acid with a concentration of 10% to 70% at a temperature of 50 ° C to 100 ° C, and react in a closed reactor with a slightly positive pressure and a rinsing gas. The generated hydrogen gas is comprehensively utilized after removing impurities, and the mixed solution of chromium sulfate and ferrous sulfate is obtained after the reaction. The improvement of some processes enables the ammonia water and sulfuric acid required for the reaction to be recycled, thereby reducing energy consumption and pollution. At the same time, the method provided by the present invention has many products and wide application range, and is suitable for large-scale popularization and use. |
| priorityDate | 2019-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 78.