Compression process for refrigeration

Claim 1

IN A COMPRESSIONN PROCESS FOR REFRIGERATION USING A MIXTURE OF REFRIGERANTS, WHICH PROCESS COMPRISES COMPRESSING SAID MIXTURE OF REFRIGEERANTS, PARTIALLY CONDENSING SUBSTANTIALLY THE HIGHER BOILING COMPONENT FROM COMPRESSED VAPORS OF SAID MIXTURE OF REFRIGERANTS IN A FIRST CONDENSATION STAGE, SEPARATING THE RESULTANT CONDENSED AND VAPOR PHASES, CONDENSING TTHE SEPARATED VAPORS OF THE LOWER BOILING COMPONENT OF SAID MIXTURE OF REFRIGERANTS IN A SECOND CONDENSATION STAGE, EXPANDING AND EVAPORATING THE CONDENSED COMPONENTS TO PRODUCE REFRIGERATING TEMPERATURESS, MIXING THE RESULTANT VAPORS, AND THEN RECYCLING THE VAPORS TO THE COMMPREESSIONN STAGE, THE IMPROVEMENT WHEREIN THE EXPANSION ANDD EVAPORATIONN OF THE SEPARATED CONDENSED HIGHER BOILING COMPONENT ARE USED TO COOL AND CONDENSE VAPORS OF THELLOWER BOILING COMPONENT IN SAID SECOND CONDENSATION STAGE.