Distillation: processes – separatory – With chemical reaction – Including step of adding catalyst or reacting material
Reexamination Certificate
2003-07-23
2009-06-23
Manoharan, Virginia (Department: 1797)
Distillation: processes, separatory
With chemical reaction
Including step of adding catalyst or reacting material
C203S099000, C203SDIG019, C549S525000, C549S541000
Reexamination Certificate
active
07550064
ABSTRACT:
The invention relates to a continuously operated process for the purification by distillation of the oxirane formed in the oxirane synthesis by reaction of a hydroperoxide with an organic compound, wherein the crude oxirane is separated in a dividing wall column into low-, intermediate- and high-boiling fractions and the oxirane is taken off as intermediate boiler at the side offtake in a concentration of at least 99.9%.
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Bassler Peter
Goebbel Hans-Georg
Rudolf Peter
Teles Joaquim Henrique
BASF - Aktiengesellschaft
Manoharan Virginia
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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