Process for removing ozone from a gas mixture containing ozone and oxygen

Claim 1

A PROCESS FOR REMOVING OZONE FROM A GAS MIXTURE CONTAINING OZONE AND O2 COMPRISING FLOWING SAID GAS MIXTURE IN INTIMATE CONTACT WITH A LIQUEFIED PERHALOGENATED FLUORINE-CONTAINING METHANE SELECTED FROM THE GROUP CONSISTING OF DIFLUOROCHLOROMETHANE AND TRIFLUOROCHLOROMETHANE, WHEREBY SAID OZONE CONSTITUENT IS ABSORBED BY SAID PERHALOGENATED METHANE TO FORM A STABLE HOLOGENEOUS SOSLUTION AND SEPARATING THE OZONE DEPLETED GAS MIXTURE FROM SAID PERHALOGENATED METHANE, AND SIMULTANEOUSLY MAINTAINING SAID SOLUTION AT A TEMPERATURE BETWEEN -174*C. AND -184*C. TO KEEP THE ABSORBED OZONE IN A LIQUID STATE AND MAINTAINING THE OZONE VAPOR PRESSURE BELOW ABOUT 75 MM. OF MERCURY; AND MAINTAINING THE OZONE CONCENTRATION OF SAID HOMOGENOUS SOLUTION BELOW ABOUT 14 BY WEIGHT.