Method and device for separation and concentration by evaporation of mixture with separation factor of approx. 1
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 20, 2007
Grant Date -
Apr 1, 2004
app pub date -
Nov 22, 2001
filing date -
Nov 22, 2000
priority date (Note) -
Expired
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Abstract
By using a dephlegmator which conducts distillation concurrently with heat exchange within at least one distillation column, or a portion of one distillation column, of a distillation cascade, the quantity of liquid holdup within the distillation apparatus is reduced and the start-up time is shortened. Consequently, the operational costs associated with startup are reduced, and productivity is improved markedly.
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