Verfahren zur Herstellung von Formaktivkohle

WO 200078138 A UPAB: 20010317 NOVELTY - Production of molded activated charcoal comprises grinding carbonaceous material(s); mixing with binder(s) containing water; molding the mixture; drying to a total water content at most 3 wt.% before carbonization to fix the composite; carbonization; and activation with an activation gas. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for molded activated charcoal produced by this process. USE - Activated charcoal is useful e.g. for purifying liquids and gases by adsorption of undesirable or harmful materials, e.g. colors, flavorings and odors from gases, chlorine and ozone from water and radioactive gases in nuclear technology; in the recovering of valuable solvents; and for adsorption of tank losses in refueling. ADVANTAGE - The process is cost-effective and simple and gives activated charcoal moldings with a large active surface area and good hardness. It can be carried out in existing plant without major modifications