| 摘要 |
<p>PCT No. PCT/EP91/01798 Sec. 371 Date Jul. 16, 1993 Sec. 102(e) Date Jul. 16, 1993 PCT Filed Sep. 20, 1991 PCT Pub. No. WO92/05849 PCT Pub. Date Apr. 16, 1992.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.</p> |
