http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2566295-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01F27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2696 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01F35-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-00 |
| filingDate | 2011-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_77fcf37cf184834814be1a4e84746b5d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36e0fae695f63f5d63014cdfc92b58d1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4521b4d51a7c011f388d15f89df896df http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a9fe76c835d122dbd275403c84cbc83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_edc7ae125505677b8177d81afe3a73f7 |
| publicationDate | 2015-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2566295-C2 |
| titleOfInvention | Method of producing polyether polyols |
| abstract | FIELD: chemistry.SUBSTANCE: invention relates to a method for catalytic production of polyether polyols, wherein the starting reagents used are glycerine and/or saccharose, the alkylene oxide used is propylene oxide, ethylene oxide, butylene oxide, isobutylene oxide, styrene oxide or mixtures thereof, the catalysts used are tertiary amines and/or alkali- or alkali-earth metal hydroxides and/or a catalyst selected from a group comprising multi-metal cyanide catalysts; conversion of the starting substance with alkylene oxides is carried out at pressure in the range of 0.1 to 1.0 MPa and temperature in the range of 80 to 140°C. The power consumed by at least one mixer or at least one mixer and a pump per reactor volume ranges from 1 to 4 kW/mor from 1.002 to 4.5 kW/m, wherein at least one swirler element is used, and wherein (i) a pump is not used, and the power consumed by at least one mixer per reactor volume ranges from 1 to 4 kW/m, preferably from 1.2 to 3.5 kW/m, or (ii) the total power consumed by at least one mixer and at least one pump per reactor volume ranges from 1.002 to 4.5 kW/m, preferably from 1.203 to 3.75 kW/m, wherein if a mixer is used, the specific power consumption P per reactor volume is calculated using the formula P=Ne*n*d*?, where Ne is a Newton coefficient, n is the rotary speed of the mixer in rpm, d is the diameter of the mixer and ? is the density of reactor contents, and if a pump is used, the specific power consumption P per reactor volume is calculated using the formula P=?p*?, where ?p is the pressure drop (in Pa) between the pump outlet and the reactor inlet and ? is flow rate (in m/s). The technical result is effective mixing of the reaction mixture using defined mixing power.EFFECT: ensuring high conformity of properties of the obtained polyether polyols when switching from one batch to another.3 ex |
| priorityDate | 2010-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.