Apparatus for vacuum fractional distillation

Claim 1

A DEVICE FOR FRACTIONAL DISTILLATION UNDER VACUUM COMPRISING: MEANS FORMING A FLUID-TIGHT CASING; SUCTION MEANS COMMUNICATING WITH SAID CASING FOR MAINTAINING A VACUUM THEREIN; MEANS FOR HEATING SAID CASING SO THAT ITS INNER SURFACE ACTS AS AN EVAPORATION SURFACE; A CONDENSER ARRANGED CENTRALLY OF SAID CASING; MEANS FOR COOLING SAID CONDENSER SO THAT ITS OUTER SURFACE ACTS AS A CONDENSING SURFACE; INLET MEANS COMMUNICATING WITH SAID CASING FOR CHARGING MATERIAL THEREINTO AND ONTO SAID EVAPORATION SURFACE; OUTLET MEANS COMMUNICATING WITH SAID CASING FOR REMOVING MATERIAL CONDENSED ON SAID CONDENSING SURFACE; A TUBULAR SPIRAL-SHAPED INERT ARRANGED INTERIORLY OF SAID CASING AND ENCOMPASSING SAID CENTRALLY ARRANGED CONDENSER, SAID INERT BEING FORMED WITH POCKET-LIKE APERTURES AND BEING MOUNTED FOR ROTATION ABOUT ITS AXIS; AND MEANS FOR ROTATING SAID INSERT, ABOUT SAID AXIS THEREOF, WHEREBY A MATERIAL CHARGED INTO SAID CASING AND SPREAD OUT IN A THIN LAYER ON SAID EVAPORATION SURFACE EVAPORATES, THEREAFTER CONDENSES ON THE ADJACENT OUTER SURFACE OF THE FIRST TURN OF SAID SPIRAL INSERT, AND THEREAFTER PASSES THROUGH THE APERATURES TO THE INNER SURFACE OF SAID FIRST TURN FROM WHICH THE LIGHTER VOLATILE COMPONENTS EVAPORATE FURTHER ONTO THE OUTER SURFACE OF THE NEXT TURN WHILE THE HEAVIER VOLATILE COMPONENTS ON SAID INNER SURFACE OF SAID FIRST TURN ARE CENTRIFUGED OUTWARDLY AND THEREBY RETURNED TO SAID EVAPORATOR SURFACE CONSTITUTED BY THE HEATED INNER SURFACE OF SAID CASING, THE ENTIRE PROCESS TAKING PLACE IN A VACUUM CREATED BY SAID SUCTION MEANS.

Claim 2

A DEVICE FOR FRACTIONAL DISTILLATION UNDER VACUUM COMPRISING: MEANS FORMING A FLUID-TIGHT CASING; SUCTION MEANS COMMUNICATING WITH SAID CASING FOR MAINTAINING A VACUUM THEREIN; MEANS FOR HEATING SAID CASING SO THAT ITS INNER SURFACE ACTS AS AN EVAPORATION SURFACE; A CONDENSER ARRANGED CENTRALLY OF SAID CASING; MEANS FOR COOLING SAID CONDENSER SO THAT ITS OUTER SURFACE ACTS AS A CONDENSING SURFACE; INLET MEANS COMMUNICATING WITH SAID CASING FOR CHARGING MATERIAL THEREINTO AND ONTO SAID EVAPORATION SURFACE; OUTLET MEANS COMMUNICATING WITH SAID CASING FOR REMOVING MATERIAL CONDENSED ON SAID CONDENSING SURFACE; A TUBULAR SPIRAL-SHAPED INERT ARRANGED INTERIORLY OF SAID CASING AND ENCOMPASSING SAID CENTRALLY ARRANGED CONDENSER, SAID INERT BEING FORMED WITH POCKET-LIKE APERTURES AND BEING MOUNTED FOR ROTATION ABOUT ITS AXIS; AND MEANS FOR ROTATING SAID INSERT, ABOUT SAID AXIS THEREOF, WHEREBY A MATERIAL CHARGED INTO SAID CASING AND SPREAD OUT IN A THIN LAYER ON SAID EVAPORATION SURFACE EVAPORATES, THEREAFTER CONDENSES ON THE ADJACENT OUTER SURFACE OF THE FIRST TURN OF SAID SPIRAL INSERT, AND THEREAFTER PASSES THROUGH THE APERATURES TO THE INNER SURFACE OF SAID FIRST TURN FROM WHICH THE LIGHTER VOLATILE COMPONENTS EVAPORATE FURTHER ONTO THE OUTER SURFACE OF THE NEXT TURN WHILE THE HEAVIER VOLATILE COMPONENTS ON SAID INNER SURFACE OF SAID FIRST TURN ARE CENTRIFUGED OUTWARDLY AND THEREBY RETURNED TO SAID EVAPORATOR SURFACE CONSTITUTED BY THE HEATED INNER SURFACE OF SAID CASING, THE ENTIRE PROCESS TAKING PLACE IN A VACUUM CREATED BY SAID SUCTION MEANS.