http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113307746-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C237-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-24 |
| filingDate | 2021-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113307746-B |
| titleOfInvention | Two-step preparation method of 6-aminocapronitrile |
| abstract | The invention relates to a two-step preparation method of 6-aminocapronitrile, which comprises the following steps: making caprolactam in an inert solvent or in a molten state to carry out an aminolysis reaction with hot ammonia gas to obtain 6-aminocaproamide; Dehydration in the presence of a dehydrating agent gives 6-aminocapronitrile. The invention performs ring-opening ammonolysis under anhydrous conditions, effectively controls the polymerization of the ammonolysis products, and reduces the generation of by-products; in the absence of catalysts, the dehydrating agent is directly used for the dehydration reaction, which effectively avoids the existence of the catalytic dehydration process. Coking of the catalyst, short catalyst life and other problems. |
| priorityDate | 2021-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 68.