http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113121818-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-26 |
| filingDate | 2019-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113121818-B |
| titleOfInvention | A kind of preparation method of nylon 612 salt |
| abstract | The invention relates to a preparation method of nylon 612 salt. The 1,6-hexanediamine solution is added into a dodecanedibasic acid solution in a stream, the pH of the reaction system reaches 5.5-6.0, the stream addition is stopped, and the low-speed stirring is performed at a constant temperature For a certain period of time; after the constant temperature is over, continue to feed the 1,6-hexanediamine solution to the end of the reaction, stop the feed, and keep the temperature for 30-60min; filter and dry to obtain the nylon 612 salt. In the present invention, impurities can be excluded during the formation of the nylon salt crystal nucleus and the initial crystal growth process through the process control in the salt forming process, and the obtained nylon 612 salt has better quality. |
| priorityDate | 2019-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.