2073. LOUGHRAN, R. T. (M. W. Kellogg Co.). Treatment of Hydrocarbon Waxes. United States Patent 2,651,655, Sept. 8, 1953; appl. filed June 29, 1949, Serial No. 101,961; 9 claims (Cl. 260-450).

Claim 1. A method for refining a liquid waxy product produced by condensing the product of hydrogenation of oxides of C in the presence of a hydrogenation catalyst at a temperature of 300°-700° F. and at a pressure between atmospheric pressure and 500 p. s. i., said waxy product containing color-imparting metallo-organic compounds and unsaturated hydrocarbons, which comprises: Dissolving said waxy product in a solvent; contacting the resulting solution at elevated temperature with a solid adsorbent to separate from said solution said color-imparting metallo-organic compounds; withdrawing the solution from contact with said adsorbent; and further decolorizing the thus partially decolorized waxy product by subjecting said product to hydrogenation in the presence of a hydrogenation catalyst at a temperature of 150°-400° F. and at a pressure of 75-1,500 p. s. i. g. for a residence time at least of 30 min. to convert unsaturated color-imparting hydrocarbons to their corresponding paraffins.