公开(公告)号：DE59409555D1

公开(公告)日：2000-11-30

申请号：DE59409555

申请日：1994-03-04

Applicant: DEGUSSA

Inventor： BINDER DR ,  DAHM FRANZ-LUDWIG ,  HERTZ DR ,  FRIEDRICH DR ,  LOTTER DR ,  HOHN WOLFGANG ,  GREISSINGER DR ,  POLZER WOLFGANG

IPC: A23K1/00 ,  A23K1/16 ,  A23K1/20

Abstract: 2. Animal feed additives based on fermentation broth further contain, in addition to the additive, other fermentation broth constituents. Such products, after spray-drying, generally have an excessively low bulk density and/or are sticky. To granulate these products, processing aids have therefore been added, e.g. perlite or sawdust. Alternatively, such products have been dewatered by azeotropic distillation with paraffin oil to give granules. The object of the invention is a highly concentrated animal feed additive which, in particular, is to have a bulk density of at least 550 kg/m and a standardisable active compound content. 2.2. By pelletising, stable granules can be produced from an animal feed additive-containing fermentation broth if the fermentation product is contained at at least 33% by weight. Granules can particularly readily be produced by pelletising if the pellets are built up of at least 30% by weight fine grain with at least 70% by weight having a particle size

公开(公告)号：DE59707676D1

公开(公告)日：2002-08-14

申请号：DE59707676

申请日：1997-04-18

Applicant: DEGUSSA

Inventor： HOEFLER DR ,  ALT HANS-CHRISTIAN ,  KLASEN DR ,  FRIEDRICH DR ,  HERTZ DR ,  MOERL PROF DR ,  SCHUETTE DR

IPC: A23K1/165 ,  A23K1/00 ,  A23K1/16 ,  A23K1/20 ,  B01J2/16 ,  C12P13/04 ,  C12P29/00

Abstract: Preparation of a fermented sludge for use as an animal feed additive which contains a fermentation product, comprises granulation, compaction and drying of the sludge in a fluidised bed, at the same time as introducing extra mechanical energy above that needed to fluidise the bed particles, in order to achieve the desired additive particle size and bulk weight.