C - Chemistry – Metallurgy – 11 – C
Patent
C - Chemistry, Metallurgy
11
C
99/51, 260/497.1
C11C 1/00 (2006.01) A23J 1/04 (2006.01)
Patent
CA 1150306
ABSTRACT OF THE DISCLOSURE A heat exchanger equipped for indirect heating, stirring and steam removal is charged with a finely divided fish mass, whereafter a combined boiling and drying pro- cedure is carried out in the heat exchanger with essentially continuous heat supply and steam removal until the heat ex- charger contains fish meal with a desired low water content and oil content. The oil removal is effected during part of the period for said boiling and drying procedure by feed- ing fish mass from the heat exchanger to a decanter having three separate outlets for separated sludge phase, oil phase and water phase while continuously recirculating to the heat exchanger the sludge phase separated in the de- canter removing separated oil for storing or further treat- ment, and removing separated stick water, at least part of the stick water being recirculated to the heat exchanger and/or being remixed with the fish mass discharged from the heat exchanger to be fed into the decanter.
370895
Alfa-Laval Inc.
Marks & Clerk
LandOfFree
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