http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110342480-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8ec5284b467459bc08e01a5e2e123638 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-163 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-163 |
| filingDate | 2019-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c6fa618cfcd15140575dd1f97650b8ef http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7d42ab7fe5f31b7293dbbe49c66490f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_112a603bdfdcc84d06ad7afb5786d784 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2c400f3b01f7f9d82251439ac3056ec3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b84c4f583768c78e63cb058ab324509f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0926b475d32893e5b5b35e2336f722dc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd9bb8c13f46e85da7a02dcb441341d6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_473368a4729e2a830baf92612e467162 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4661685b7ec5948300ff1990e67907fc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5861d365f5517fe13c7ee2b55cd5159c |
| publicationDate | 2019-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110342480-A |
| titleOfInvention | A kind of production method of sodium phosphite |
| abstract | The present invention provides a method for producing sodium phosphite. The production method uses sodium hypophosphite production waste residue as a raw material, reacts with sodium hydroxide, and is filtered, concentrated, evaporated and crystallized, washed with methanol and dried to obtain a sodium phosphite product. The production method of sodium phosphite of the present invention uses methanol as a detergent, can dissolve the excess sodium hydroxide in the reaction, but does not dissolve the sodium phosphite, avoids the difficulty of industrially increasing pH, and the method can recover the excess sodium hydroxide in the reaction The methanol solution after washing can also be recycled after distillation, which can effectively save the consumption of raw materials, and does not produce pollution, which is green and environmentally friendly, and is conducive to promoting the efficient utilization of sodium hypophosphite production waste residue in the production of sodium phosphite. |
| priorityDate | 2019-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.