Distillation: processes – separatory – Vaporization zone under positive pressure or vacuum
Patent
1992-02-10
1993-12-14
Manoharan, Virginia
Distillation: processes, separatory
Vaporization zone under positive pressure or vacuum
159 471, 568724, B01D 310, C07C 3774
Patent
active
052698874
ABSTRACT:
A process for the purification of bisphenols by distillation.
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Berg Klaus D.
Freitag Dieter
Jakob Wolfgang
Schmidt Manfred
Bayer Aktiengesellschaft
Manoharan Virginia
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