The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 2010
Filed:
Oct. 15, 2002
Hans Christian Alt, Gelnhausen, DE;
Andreas Harthun, Moembris, DE;
Joachim Luethi, Koenigswinter, DE;
Andreas Goelz, Rodenbach, DE;
Stefan Schulze, Grobkrotzenburg, DE;
Martin Wille, Frankfurt, DE;
Hans Christian Alt, Gelnhausen, DE;
Andreas Harthun, Moembris, DE;
Joachim Luethi, Koenigswinter, DE;
Andreas Goelz, Rodenbach, DE;
Stefan Schulze, Grobkrotzenburg, DE;
Martin Wille, Frankfurt, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
A process for the production or coating of granules in a fluidized bed, which includes heating a fluidized-bed gas to produce the fluidized bed, and applying a liquid medium containing a granule-forming or coating-forming compound, or at least one reaction component therefore, by spraying particles located in the fluidized bed and at a same time vaporizing an organic solvent contained in the liquid medium, said particles having a smaller mean diameter than that of particles to be produced. The process also includes partial condensation of an organic solvent from at least a portion of a fluidized-bed waste gas leaving the fluidized bed, and re-heating the fluidized bed-gas leaving the condensation device and reintroducing the re-heated gas into the fluidized bed.