FIELD: polymer production.
SUBSTANCE: invention, in particular, relates to improved method for producing polyetherpolyols using double metal cyanide catalysts. Method is accomplished via polyaddition of alkylene oxides to initial compounds having molecular mass between 18 and 2000 and 1 to 8 hydroxyl groups containing active hydrogen atoms, reaction being effected in presence of double metal cyanide catalysts. During the polyaddition reaction, reaction mixture is at least once passed through jet disperser, in which power density is at least 105-106 J/m3 and residence time of reaction mixture per pass is at least 10-5 sec.
EFFECT: enhanced process efficiency and expanded synthetic possibilities.
1 dwg, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| POLYETHERPOLYOL PRODUCTION PROCESS | 2002 |
|
RU2298565C2 |
| DOUBLE METALLOCIDE CATALYST, METHOD FOR PREPARATION THEREOF, AND POLYETHER-POLYOL PRODUCTION PROCESS | 2000 |
|
RU2237515C2 |
| METHOD OF PREPARING DOUBLE METAL CYANIDE CATALYSTS | 2000 |
|
RU2264258C2 |
| METHOD OF PREPARING DOUBLE METAL CYANIDE CATALYSTS | 2001 |
|
RU2284218C2 |
| DOUBLE METAL CYANIDE CATALYSTS FOR PRODUCTION OF POLYETHERPOLYOLS | 2000 |
|
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| DOUBLE METAL CYANIDE CATALYSTS FOR PRODUCTION OF POLYETHERPOLYOLS | 2000 |
|
RU2248241C2 |
| METHOD FOR POLYESTER-POLYOL PRODUCTION | 2000 |
|
RU2250910C2 |
| LONG-CHAIN POLYETHER POLYOLS WITH HIGH CONTENT OF PRIMARY HYDROXYL GROUPS | 2000 |
|
RU2242485C2 |
| POLYOL MIXTURE PRODUCTION PROCESS | 2002 |
|
RU2312112C2 |
| METHOD OF PRODUCING POLYETHER ALCOHOLS FROM ALKYLENE OXIDES | 2010 |
|
RU2560724C2 |
