Abstract: A method of treating a mixture of ethyl alcohol and water for the reduction of impurities comprising: contacting the mixture with three layers of activated charcoal having specified surface activities at a temperature of from -45.degree. C. to -22.degree. C., followed by contacting the mixture with three other layers of activated charcoal having specified surface activities at a temperature of from -22.degree. C. to 5.degree. C.

Abstract: A process for preparing an emulsion of water-insoluble particles useful in the cosmetic, pharmaceutical, paint and ink industries comprising:treating the water-insoluble particles with a wetting agent in an organic solvent;combining the water-insoluble particles with an oily or polymeric substance to obtain an oily suspension;preparing an aqueous solution of a combination of surface active agents; andcombining the aqueous solution with the oily suspension to form an emulsion.

Abstract: A method of treating a mixture of ethyl alcohol and water for the reduction of impurities comprising the steps of:a) mixing ethyl alcohol and water at a temperature of from about 5.degree. C. to about 10.degree. C. to obtain a mixture;b) flowing the mixture at a temperature of from about 5.degree. C. to about 20.degree. C. through three layers of an activated charcoal adsorber having surface activities of1) from about 0.6 to about 0.8 mg-equivalent/liter,2) from about 0.8 to about 1.0 mg-equivalent/liter, and3) from about 1.0 to about 1.4 mg-equivalent/liter respectively, and a total pore volume of from about 1.4 to 1.6 cm.sup.3 /g;c) allowing the mixture to contact the activated charcoal adsorber for about 2 to 15 minutes, preferably for about 5 to 10 minutes; andd) recovering the initial capacity of the activated charcoal adsorber by flowing a stream of dry air, having a temperature of from about 100.degree. C. to about 400.degree. C., through the activated charcoal adsorber.