U.S. federal trademark · Serial No. 71630976 · Reg. No. 0589328
APPARATUS, IN THE NATURE OF A PLANT, FOR TREATMENT OF HYDROCARBON MIXTURES CONTAINING AROMATIC HYDROCARBONS, IN WHICH APPARATUS THE HYDROCARBON MIXTURE IS CONTACTED IN AN EXTRACTION COLUMN WITH A SOLVENT COMPRISING ONE OR MORE GLYCOLS TO FORM A GLYCOL-AROMATIC HYDROCARBON CONTAINING EXTRACT, AND, IN A DISTILLATION COLUMN OF THE APPARATUS, THE EXTRACT IS AT LEAST PARTIALLY VAPORIZED TO RECOVER AN AROMATIC HYDROCARBON PRODUCT
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