http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105198754-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-48 |
| filingDate | 2015-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105198754-B |
| titleOfInvention | One kind prepares N, the method for the propane diamine of N dimethyl 1,3 |
| abstract | N is prepared the present invention relates to one kind, be added to acrylonitrile in synthesis reactor by the method for the propane diamine of N dimethyl 1,3, add dimethylamine, N, N dimethylaminopropionitriles is obtained by rectification under vacuum removal dimethylamine；Hydrogenation catalyst is added, to liquefied ammonia is passed through in autoclave, hydrogen is passed through, reacted, fore-running after sedimentation, rectifying obtains N, the propane diamine of N dimethyl 1,3.The invention provides a kind of method for preparing DMAPA, process is simple, it is ensured that the raising of selectivity, the yield of unit weight slag is greatly reduced, saved the processing cost of a large amount of dangerous wastes；The consumption of raw material propylene nitrile and dimethylamine is reduced, the consumption of raw materials cost of DMAPA synthesizers has been saved, that is, saves production cost, improve company interest. |
| priorityDate | 2015-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.