Process for the production of zeolite granules
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsWerner Pichler, Jochen Jacobs
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Abstract
The object of the invention was to provide a granulation process for the production of heavy zeolite granules in which the quantity of granulation liquid used would be a less critical factor, so that (co)polymeric carboxylates could be used as a dissolved constituent of the granulation liquid. This object is achieved by using a mixture of water, surfactants and (co)polymeric carboxylates as the granulation liquid, the content of surfactants in the granulation liquid being at least 10% by weight.
Claims6
The process of preparing zeolite granules having an apparent density of from 750 to 1,000 g/l, comprising granulating said granules in the presence of from 15 to 45 parts by weight of a granulation liquid per 100 parts by weight of zeolite expressed as anhydrous material, said granulation liquid comprising water, surfactants and (co)polymeric carboxylates wherein the content of surfactants in said granulation liquid is at least 10% by weight, and drying the mixture obtained to form free-flowing granules.
Dependencies are inferred from the claim text.