Process for the preparation of granules

专利名称：Process for the preparation of granules发明人：Stanislaus M. P. Mutsers申请号：US06/3025申请日：19840821公开号：US04619843A公开日：19861028

摘要：Preparation of granules by making solid nuclei grow in a fluidized bed, bycausing a liquid material to solidify thereon, the liquid material being introduced into thebed from the bottom upwards with the aid of a feeding device provided with a centralchannel through which the liquid material is supplied and a channel concentric therewiththrough which a powerful gas stream is supplied, which creates a rarefied zone in the bedabove the feeding device, wherein the liquid material is made to exit from the centralchannel into the rarefied zone as a virtually closed, conical film, nuclei from the bed arecarried through the film with the aid of the powerful gas stream and next, during

transport of the so moistened nuclei through the rarefied zone, the liquid material takenup by the nuclei is allowed to solidify. By this process only a small amount of high-energetic gas is required, while very little agglomeration and dust formation occurs.

申请人：UNIE VAN KUNSTMESTFABRIEKEN B.V.

代理机构：Cushman, Darby & Cushman

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