Separation of butadiene from hydrocarbon gases with cuprous chloride

Claim 1

A CONTINUOUS PROCESS FOR TREATING A GASEOUS HYDROCARBON MIXTURE TO REMOVE BUTADIENE THEREFROM, WHICH COMPRISES SUSPENDING FINELY-DIVIDED CUPROUS CHLORIDE IN SAID GASEOUS MIXTURE CONTAINING BUTADIENE, PASSING THE RESULTING SUSPENSION UPWARDLY INTO A TREATING ZONE WHEREIN THE CUPROUS CHLORIDE IS MAINTAINED AS A DENSE TURBULENT FLUIDIZED SUSPENSION AND THE BUTADIENE IS SELECTIVELY REMOVED FROM THE GASEOUS MIXTURE BY THE CUPROUS CHLORIDE, FLOWING THE FLUIDIZED SUSPENSION FROM AN UPPER PART OF SAID TREATING ZONE INTO A SEPARATION ZONE WHEREIN SAID CUPROUS CHLORIDE RETAINING BUTADIENE IS SEPARATED FROM THE REST OF THE TREATED GASEOUS MIXTURE, TRANSFERRING THE SEPARATED CUPROUS CHLORIDE WITH BUTADIENE RETAINED THEREBY IN A FREE FLOWING STREAM FROM THE SEPARATION ZONE INTO A STREAM OF INERT STRIPPING GAS, PASSING THE RESULTING SUSPENSION