http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4283339-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_aa16317004474522c7ca4c629851333d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-12 |
| filingDate | 1979-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1981-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_808d121e27066e373db0f9d4e2fb1200 |
| publicationDate | 1981-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4283339-A |
| titleOfInvention | Preparation of dioxane and co-products |
| abstract | Dioxane is prepared by reaction of polyethylene glycols in a catalytically active liquid reaction medium comprising a mixture of partial phosphate esters of a polyethylene glycol, and ammonium salts of partial esters of a polyethylene glycol. Along with dioxane, valuable co-products, including the compound 5-ethyl-2-methylpyridine, are formed from which the dioxane is readily separated in highly pure form. The catalytically active liquid reaction medium is derived from the reaction of ammonium dihydrogen phosphate with a polyethylene glycol at temperatures preferably in the range from 190° to 225° C. Temperatures of reaction between the polyethylene glycol and the catalytically active liquid reaction medium to form the dioxane and co-products are preferably in the range of from about 225° C. to about 275° C. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4806658-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101948461-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101948461-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4405799-A |
| priorityDate | 1979-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.