The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 1976
Filed:
Oct. 30, 1974
Applicant:
Inventor:
George B Karnofsky, Pittsburgh, PA (US);
Assignee:
Dravo Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; A23L / ;
U.S. Cl.
CPC ...
159 / ; 159 / ; 159 46 ; 159 / ; 426430 ; 2604124 ;
Abstract
There is disclosed a multiple-effect evaporation system wherein the last effect of the system in the direction of miscella flow is provided with a stripping tower in which vapor effluent from that effect countercurrently contacts feed to that effect. In application to the recovery of solvent from miscella obtained by the extraction of defatted seed material with an aqueous organic carbohydrate-selective solvent, pressure in the evaporation zone of one of the effects is maintained at atmospheric. Additionally, at least one of the effects other than said last effect may be provided with a rectification column.