| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_efbc93fa15ca59046e84ca5c5c84c433 |
| classificationCPCInventive |
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/C07D317-36
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/C07C29-12 |
| classificationIPCInventive |
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
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-12 |
| filingDate |
2020-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d0e948897594a070b482610dce55c23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab59f7be052317f56b2905ebf3ec92bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e9b0a8e0243442b478bd3d5fb020ddab |
| publicationDate |
2021-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-113316604-A |
| titleOfInvention |
Process for preparing diols |
| abstract |
The subject of the present invention is a process for the preparation of diols, characterized in that the process comprises the steps of: (1-i) addition of alkylene oxide and carbon dioxide to H-functional starter substances in the presence of a catalyst to obtain polyethers Carbonate polyol and cyclic carbonate, (1-ii) isolating the cyclic carbonate from the resulting reaction mixture obtained from step (1-i), (1-iii) isolating the cyclic carbonate from step (1-ii) Hydrolytic cleavage of the cyclic carbonate to carbon dioxide and diol, (1-iv) optionally purifying the diol from step (1-iii) by distillation, wherein (n) will exclude Lewis acids of carboxylic acids with pKa>3.0 or Bronsted acid and optionally water are added to the cyclic carbonate and/or diol from step (1-ii), and the resulting reaction mixture is optionally neutralized. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115043706-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115043706-A |
| priorityDate |
2019-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |