http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109734565-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-60 |
| filingDate | 2019-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109734565-B |
| titleOfInvention | A kind of orthoformate production method |
| abstract | The invention discloses a method for producing orthoformate. A large amount of methanol is added to an initial solution to avoid volatilization of intermediate dichlorocarbene decomposed by chloroform, and 3-10% excess of chloroform is maintained in the reaction to ensure complete reaction of sodium methoxide and distillation. Time control temperature < 120 ℃ to ensure the stability of formate, add anhydrous methanol in the later stage of distillation to make it azeotrope with the original methyl ester, so as to successfully distill the residual original methyl ester in the salt and other technical means to the original methyl ester generated by the reaction. The formate ester is almost completely distilled from the salt, ensuring yields as high as 95%. The purity of the product is also greatly improved, and environmental protection problems are not caused by becoming waste, and the production cost is low, and it has the prospect of large-scale industrial production. |
| priorityDate | 2019-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.