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:
Feb. 07, 1989
Filed:
Feb. 11, 1988
Melvin D Binderman, Gaithersburg, MD (US);
Joseph N Casey, Ft. Wayne, IN (US);
Central Soya Company, Inc., Fort Wayne, IN (US);
Abstract
A method for deoiling crude lecithin which includes pretreating crude lecithin with from about 5% to about 20% acetone to control viscosity variability and to facilitate breakup of solids during extraction, introducing the thus pretreated lecithin into the upper part of a contacting chamber under conditions of agitation but without flow constriction at essentially atmospheric pressure, thereafter flowing the lecithin in continuous, countercurrent relation to acetone at a rate of 3 to 10 parts acetone to one part lecithin to provide a refined lecithin having an Acetone Insolubles content in the range of about 94% to about 99.9%.