http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020253297-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_aa87b888cb419f4e791cad8e5651ec9e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2696 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2648 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2609 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48 |
| filingDate | 2020-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aaefaa12d42a10840a9ecd84f1cae67b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a82b515a16e213328fdd3d1609fed80c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68b2eb5a5ddabbefe131c7d98e0c9bc7 |
| publicationDate | 2020-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2020253297-A1 |
| titleOfInvention | Process and system for producing low-odor polyether polyol |
| abstract | The present invention relates to the technical field of the production of polyether polyols, and provided is a process for producing a low-odor polyether polyol, the process comprising the following steps: an initial polymerization reaction step, involving: adding an initiator and an alkaline catalyst into a reaction container, and then inputting an epoxy olefin into the reaction container for a polymerization reaction to obtain a mixed material; a circulating distribution polymerization step, involving: taking the mixed material, outputting same, splitting same and then spraying same into the reaction container at a high speed, circulating the above operations while inputting the epoxy olefin and maintaining a rotation speed of 90-105 r/min for stirring the mixed material that has been sprayed into the reaction container, continuing to proceed with the polymerization reaction, and curing same to obtain a crude polyether polyol; and a refining step, involving: taking the crude polyether polyol and subjecting same to a neutralization or dilution treatment to obtain a mixed solution of the crude polyether polyol, then aggregating a mixed solution stream by means of a hydrophilic medium, setting same and separating same to obtain the low-odor polyether polyol. The production process of the present invention has the advantages of a short processing time, a high yield and a low VOC content. |
| priorityDate | 2019-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.