http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111377875-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D251-38 |
| filingDate | 2018-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111377875-B |
| titleOfInvention | Preparation method and application of 2, 4, 6-trimercapto-s-triazine disodium salt aqueous solution |
| abstract | The invention relates to the field of environmental protection, and in particular relates to a preparation method and application of a2, 4, 6-trimercapto-s-triazine disodium salt aqueous solution. The preparation method of the 2, 4, 6-trimercapto-s-triazine disodium salt aqueous solution comprises the following steps: adding cyanuric chloride and a sodium sulfide aqueous solution into a sodium hydrosulfide aqueous solution, and controlling the speed of adding the cyanuric chloride and the sodium sulfide aqueous solution to obtain a mixed solution with the pH value of 10-12; the temperature of the mixed solution is controlled to be 0-20 ℃; and heating the mixed solution to enable sodium hydrosulfide and sodium sulfide to react with cyanuric chloride, and after the reaction is finished, sequentially cooling and filtering to obtain the 2, 4, 6-trimercapto-s-triazine disodium salt aqueous solution. The invention avoids using alkali to control the pH value of a reaction system and furthest inhibits the occurrence of hydrolysis reaction by changing the molar ratio of the sodium hydrosulfide to the sodium sulfide, thereby ensuring the purity and the yield of the 2, 4, 6-trimercapto-s-triazine disodium salt. |
| priorityDate | 2018-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.