http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3683251-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_387abf6afc9a2cd5cfa5cd4d35f8b9fe |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2609 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2663 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2603 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-406 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D317-36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-34 |
| filingDate | 2019-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3683251-A1 |
| titleOfInvention | Process for the preparation of diol |
| abstract | The invention relates to a process for the preparation of diol, characterized in that the process comprises the steps (1-i) addition of alkylene oxide and carbon dioxide onto an H-functional starter substance in the presence of a catalyst to give polyether carbonate polyol and cyclic carbonate, (1-ii) separation of the cyclic carbonate from the resulting reaction mixture from step (1-i), (1-iii) hydrolytic cleavage of the cyclic carbonate separated from step (1-ii) to carbon dioxide and diol, (1-iv) optionally purifying the diol from step (1-iii) by distillation, where (η) to the cyclic carbonate from step (1-ii) and / or the diol, a Lewis or Brønsted acid, with the exception of carboxylic acids with a pKa of> 3.0, and optionally adding water and optionally neutralizing the reaction mixture obtained becomes. |
| priorityDate | 2019-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 796.