Method for obtaining increased depth of flash vaporization

Claim 1

IN THE DISTILLATION OF A DISTILLABLE MATERIAL COMPRISING VAPORIZABLE CONSTITUENTS WHICH COMPRISES PREHEATING SAID MATERIAL TO A DISTILLATION TEMPERATURE, UNDER CONDITIONS WHICH DO NO EFFECT ANY SIGNIFICANT DECOMPOSITION OF SAID MATERIAL, AND PASSING IT TO A DISTILLATION ZONE, THEREIN FLASHING VAPOROUS CONSTITUENTS FROM SAID MATERIAL, THUS SEPARATING SAID MATERIAL INTO VAPOROUS AND NON-VAPOROUS CONSTITUENTS, REMOVING VAPOROUS CONSTITUENTS AS A PRODUCT OF THE DISTILLATION, REMOVING NON-VAPOROUS PRODUCTS FREE FROM SAID VAAPOROUS CONSTITUENTS IN ANY FORM FROM SAID ZONE, DIRECTLY AND SEPARATELY HEATING SAID NON-VAPOROUS PRODUCTS TO A TEMPERATURE WHICH IS SUBSTANTIALLY THAT WHICH IS DESIRED TO BE MAINTAINED IN SAID DISTILLATION ZONE, AND RETURNING SAID NON-VAPOROUS PRODUCTS, THUS HEATED, TO SAID DISTILLATION ZONE AT A LOCUS DOWNSTREAM OF THE FLASHING OF THE ORIGINAL FEED TO SAID ZONE.