http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104211601-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-86 |
| filingDate | 2014-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104211601-B |
| titleOfInvention | A kind of co-production method produces 3,4-DCA and p-Chlorobenzoic acid amide technique |
| abstract | The present invention be more particularly directed to a kind of co-production method and produce 3,4-DCA and p-Chlorobenzoic acid amide technique.Comprise the following steps: parachloronitrobenzene is after chlorination, the direct hydrogenation in hydrogenation still when not needing solvent, temperature controls at 80 ± 5 DEG C, and pressure-controlling generates p-Chlorobenzoic acid amide and 3 at 0.5-0.6Mpa, 4-dichlorphenamide bulk powder mixed solution, wherein p-Chlorobenzoic acid amide accounts for the content of mixed solution is 20-35%; Then through continuous rectification, overhead extraction p-Chlorobenzoic acid amide, the low extraction of tower is not containing the mixed solution of p-Chlorobenzoic acid amide, and this mixed solution obtains 3,4-DCA product through further rectifying.Co-production method of the present invention produces 3.4-dichlorphenamide bulk powder and p-Chlorobenzoic acid amide technique is suitable for the large products production of output, is particularly suitable for temperature sensitive chemical reaction; Easily automatically control, simple to operate, save manpower; Stablize, operational safety, be suitable for wide popularization and application. |
| priorityDate | 2014-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.