Process for the oxidation to carbon dioxide of carbon monoxide in an olefincontaining gas mixture

Claim 1

A PROCESS FOR LIBERATING A GASEOUS MIXTURE OF OLEFINS FROM SMALL AMOUNTS OF CARBON MONOXIDE BY CONVERTING SAID MONOXIDE INTO CARBON DIOXIDE, WHICH COMPRISES PASSING IN A FIRST STAGE SAID GASEOUS MIXTURE THROUGH A SOLUTION CONTAINING AS ESSENTIAL INGREDIENTS, A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROCHLORIC ACID, AMMONIA, PHENETIDINE, PIPERIDINE, PYRIDINE, MONOETHANOL AMINE AND PROPANOL AMINE, AND AS SOLE METALLIC COMPOUND AT LEAST ONE CUPRIC SALT AND AT LEAST ONE CUPROUS SALT, THE RATIO OF THE CUPRIC COPPER TO CUPROUS COPPER BEING IN THE RANGE BETWEEN 10 TO 70% AND 90 TO 30%, AT A TEMPERATURE BETWEEN 10 TO 70% AND 90 TO 30%, AT A TEMPERATURE BETWEEN 60*C. AND THE BOILING POINT OF SAID SOLUTION, TREATING THE SOLUTION FROM THE FIRST STAGE IN A SECOND STAGE WITH A SUFFICIENT QUANTITY OF OXYGEN TO REOXIDIZE TO CUPRIC COPPER THE CUPROUS COPPER FORMED IN THE REACTION BETWEEN CARBON MONOXIDE AND CUPRIC COPPER IN THE FIRST STAGE, RECYCLING THE SOLUTION CONTAINING SAID REOXIDIZED CUPRIC COPPER INTO THE FIRST STAGE, AND COUNTERACTING DESORPTION OF OLEFINS DURING THE SECOND STAGE AND ADSORPTION OF OLEFINS DURING THE FIRST STAGE BY MAINTAINING PRESSURE AND TEMPERATURE EQUAL IN BOTH STAGES.