Process for spray-drying materials and mixtures thereof using superheated steam
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsWilfried Raehse, Volker Bauer
Life of this patent
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Abstract
The process of producing particulate, solid, pourable and free-flowing useful materials from water-containing preparations thereof by spray-drying in a hot gas stream under normal pressure wherein the hot gas stream is superheated steam, terminating the spray-drying of the materials before they are completely dry or damaged by heat effects, and then (a) mixing the spray-dried materials with an auxiliary component which is capable of binding residual quantities of water from the materials, or (b) further drying the spray-dried materials under conditions that will not damage the materials, or (c) post-treating the spray-dried materials in a manner as to homogenize the residual moisture in the materials.
Claims21
The process of producing particulate, solid, pourable and free-flowing materials selected from the group consisting of wetting agents, detergents, detergent components, and mixtures thereof, said materials being prepared from water-containing compositions by spray-drying said compositions in a hot gas stream under normal pressure wherein said hot gas stream consists essentially of superheated steam, and terminating the spray-drying of said materials before they are completely dry or damaged by heat effects.
Dependencies are inferred from the claim text.