http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112850770-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eff2ed117b08922b4560b0c3ddc2560b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-468 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-46 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-28 |
| filingDate | 2021-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a38e924bf069605985063815f2e1bad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_96f57e3ab22b968ba972287417dcd712 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0645507284a7f8735a0fcacd9412896e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4452344c9c0fff09b6f180509507a233 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_613386c2d6654295a63cc973f7923ccd |
| publicationDate | 2021-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112850770-A |
| titleOfInvention | A kind of method for comprehensive utilization of waste liquor from ammonia-alkali process |
| abstract | The invention belongs to the technical field of mineral development, and in particular relates to a method for recycling and comprehensively utilizing waste liquid of alkali production by ammonia-alkali process. The method for comprehensive utilization of waste liquor from alkali production by ammonia-alkali process comprises the following steps: carrying out natural sedimentation of the pretreated waste liquor from alkali production to separate light calcium liquid; mixing the light calcium liquid with the mother liquor discharged from salt production, The reaction generates a mixed slurry of calcium sulfate dihydrate and sodium chloride; the mixed slurry is pumped to a sedimentation tank to thicken the solid content of the slurry to obtain a thick slurry; the thick slurry is subjected to solid-liquid separation to obtain filtrate II and filter residue II , the filter residue II is washed with water to obtain gypsum, and the filtrate II is a high-concentration NaCl solution, which is injected into the mine to mine brine. By using the method of the invention, the calcium sulfate deposits generated underground can be reduced to cover the bottom mineral deposits, and calcium sulfate and calcium carbonate products can be obtained in the circulation process, and the mineral resources have been more fully utilized. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115558805-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114506861-A |
| priorityDate | 2021-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.