http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105037196-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C241-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C243-14 |
| filingDate | 2015-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105037196-B |
| titleOfInvention | The new method of catalytic synthesis of methyl hydrazine under a kind of normal pressure |
| abstract | The invention discloses under a kind of normal pressure catalytic synthesis of methyl hydrazine new method.It is characterized in that：Hydrazine hydrate is made into protective agent with hydrochloric acid with monochloro methane, silica gel makees catalyst, and ethanol as solvent, synthesis under normal pressure at 70 ~ 74 DEG C generate methyl hydrazine hydrochloride.Using the free method of hydrazine, after hydrazine hydrate dissociates methyl hydrazine, Jing rectification process obtains methyl hydrazine aqueous solution.One hydrochloric acid hydrazonium salt of by-product after free can be with recycled.The invention has the advantages that：Equipment cost and cost of material are more cheap, and reaction yield is high and selectivity is good, and three wastes are produced, and the feature of environmental protection is strong, and technique realizes interior circulation, in that context it may be convenient to carry out continuous prodution, and reaction is carried out at ambient pressure, simple to operate, production safety. |
| priorityDate | 2015-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.