http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-201430009-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cebc635d6de7701718d052e901127e8b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-03 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-28 |
| filingDate | 2014-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_990cf23f8ea62952acad15196a54543a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f54c40fbe794c77560a265103f3708b4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a374d3f6b2ce8c7c65f8e337dd8b9cc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a9b0141574e909a4c4f2be8128dc7a8a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e17fea5206015e1d54a8db456d80023c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_49e01881e9d14680be5409d826206335 |
| publicationDate | 2014-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-201430009-A |
| titleOfInvention | Method for producing polyethylene glycol monomethyl ether |
| abstract | The present invention discloses a method of producing polyethylene glycol monomethyl ether. The invention comprises the following steps: (1) after washing the reactor, charging the reactor with nitrogen gas and then vacuuming to remove the moisture therein and reducing the oxygen content in the reactor; (2) charging the reactor Nitrogen is pressurized, methanol and sodium methoxide as a catalyst are added to the reactor and heated; (3) ethylene oxide is added to the reactor at a rate of 800 to 1200 kg/h for pre-reaction; (4) After the methanol in the reactor is completely reacted with ethylene oxide, the ethylene oxide is fed into the reactor at a rate of 8000 to 12000 kg/h for reaction; (5) after the reaction is completed, the reaction product is cooled and adjusted. The pH is 5~7 and is transported to the tank area. The method of the invention avoids the production of polyethylene glycol and improves the purity of the product; the reaction time of the invention is short, the yield is high, and the safety is good. |
| priorityDate | 2013-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.