Method of deoiling crude lecithin
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United States of America Patent
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Feb 7, 1989
Issued Date -
N/A
app pub date -
Feb 11, 1988
filing date -
Aug 8, 1986
priority date (Note) -
Expired
status (Latency Note)
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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%.
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