Distillation: processes – separatory – With measuring – testing or inspecting
Patent
1987-04-16
1989-10-17
Bascomb, Wilbur
Distillation: processes, separatory
With measuring, testing or inspecting
203 3, 203 57, 203 58, 203 59, 203 60, 203 62, 203 63, 203 64, 203 65, 203 91, 560 57, 560124, 562402, 562866, 562856, 568829, B01D 340, C07B 5700
Patent
active
048744735
ABSTRACT:
Diastereomers can be separated with good industrial success with the aid of extractive distillation. The separation process is characterized in that an auxiliary which changes the partial pressure of the various diastereomers to be separated to a different degree and thus allows easier separation of the diastereomers by distillation is added during the distillation. Using the present process diastereomic cis/trans-permetric acid methyl esters and mixtures of menthol and isomenthol can be separated with isolation of 99% pure product.
REFERENCES:
patent: 3491152 (1970-01-01), Howard et al.
patent: 3847755 (1974-11-01), Chanel et al.
patent: 4134919 (1979-01-01), Yamanaka et al.
patent: 4196304 (1980-04-01), Naumann
patent: 4306077 (1981-12-01), Leigh
patent: 4488937 (1984-12-01), Berg et al.
patent: 4599444 (1986-07-01), Foggassy et al.
Arlt Dieter
Arlt Wolfgang
Brandt Hans-Walter
Nickel Andreas
Schwartz Ulrich
Bascomb Wilbur
Bayer Aktiengesellschaft
LandOfFree
Separation of diastereomers by extractive distillation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Separation of diastereomers by extractive distillation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separation of diastereomers by extractive distillation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1741741