Distillation: processes – separatory – Adding material to distilland except water or steam per se – Organic compound
Reexamination Certificate
2007-02-01
2011-12-27
Caldarola, Glenn (Department: 1771)
Distillation: processes, separatory
Adding material to distilland except water or steam per se
Organic compound
C203S029000, C203S038000, C203S082000, C203S084000
Reexamination Certificate
active
08083903
ABSTRACT:
An azeotropic distillation method, comprising a reaction step, a distillation step for separating and refining a reaction product, and a recovery step for collecting a reactant after the distillation step; wherein at least one component constituting the reactant in the reaction step can act as an entrainer for the azeotropic distillation in the distillation step; and a portion of the reactant capable of acting as the entrainer is supplied to the distillation step.
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Maruta Hiroshi
Otogawa Chihiro
Caldarola Glenn
McCarty Patrick
Showa Denko K.K.
Sughrue & Mion, PLLC
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