Process for separating and recovering fats and solids

Claim 1

THE PROCESS OF TREATING MATERIAL FROM SLAUGHTER OF POULTRY AND ANIMALS FOR RECOVERY OF OILS AND PROTEIN SOLIDS THEREFROM CONSISTING OF THE STEPS: MOVING MATERIAL RESULTING FROM THE SLAUGHTER OF POULTRY AND ANIMALS FROM A PLACE OF SLAUGHTER, REDUCING THE SIZE OF THE SOLIDS IN SAID MATERIAL TO A PARTICLE SIZE NOT EXCEEDING APPROXIMATELY ONE INCH, MOVING THE MATERIAL HAVING REDUCED SOLIDS IN A STREAM, SUBJECTING SAID STREAM OF MATERIAL TO HEAT BY INTRODUCING STEAM INTO SAID STREAM TO RAISE THE TEMPERATURE OF SAID MATERIAL TO APPROXIMATELY 180*F. TO 190*F. TO REDUCE THE VISXOSITY OF THE OILS THEREIN, CENTRIFUGALLY SEPARATING SAID MATERIAL HAVING REDUCED SOLIDS INTO A FLOWABLE LIQUID PHASE AND A SOLID PHASE WITH A LARGE PORTION OF THE FATS NORMALLY ASSOCIATED WITH THE SOLLIDS BEING DISPLACED THEREFROM AND FORMING PART OF THE LIQUID PHASE, SAID SOLID PHASE BEING A WET CAKE, ADDING WATER TO SAID WET CAKE MAKING A MIXTURE THAT IS PUMPABLE, MOVING SAID MIXTURE IN A STREAM, CENTRIFUGALLY SEPARATING SAID MIXTURE INTO A LIQUID PHASE AND A SOLID PHASE WHEREIN A SUBSTANTIAL PORTION OF THE FAT REMAINING IN THE MISTURE IS DISPLACED INTO THE LIQUID PHASE, AND REMOVING WATER FROM THE SOLID PHASE FROM SAID SECOND NAMED CENTRIFUGAL SEPARATION TO FORM A LOW FAT CONTENT CAKE.