Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Process for a continuous production of polyetherols
A process for a continuous production of a polyetherol first involves reacting a catalyst (5) with an alcohol starter (3) or an alkoxylated precursor, to give a mixture comprising an alcoholate and water. Water is then removed from the mixture. The process further involves feeding the alcoholate into a bubble column and feeding an alkylene oxide into the bottom of a compartment of the bubble column, such that the alkylene oxide rises in the alcoholate. The alkylene oxide then reacts with the alcoholate or a secondary product from the reaction between the alcoholate and alkylene oxide, to give the polyetherol.
BASF SE
C B B B C B C B
C08G B01J B01J B01J C07C B01J C08G B01J
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Dirk Christoph Achim Andreas Ulrich Gerrit Oliver Fatemeh Ronald Milind Thomas Vinit Ralf
Meckelnburg Grossmann Loffler Brodhagen Kammel Waters Bey Admadnian Adelmann Joshi Ostrowski Chilekar Bohling