http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105152874-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-42 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-11 |
| filingDate | 2015-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105152874-B |
| titleOfInvention | A kind of method for producing dipropylene glycol methyl ether |
| abstract | The present invention relates to a kind of method for producing dipropylene glycol methyl ether, using the reaction tower bottoms of propylene glycol monomethyl ether as raw material, first by obtaining product and concentrate after a rectifying, then obtained concentrate is concentrated and neutralizes and filter off except the salinity in liquid, the liquid after desalination is finally squeezed into the secondary rectifying of rectifying still progress again and obtains product.The advantage of the invention is that：Between the secondary rectifying used plus inorganic mixed acid removes the technique of sodium methoxide, due to avoiding the generation of sodium methoxide or salt as far as possible in whole distillation process, greatly reduces equipment corrosion and the possibility blocked, improves the continuous processing ability of equipment；It is prior to be a cancellation due to caused potential safety hazard after sodium methoxide superheated, so, it has been achieved in that the safety in production of whole technical process. |
| priorityDate | 2015-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.