公开(公告)号：DE59705609D1

公开(公告)日：2002-01-17

申请号：DE59705609

申请日：1997-04-03

Applicant: BASF AG

Inventor： JAEGER DR ,  FRICKE DR

IPC: A61J3/02 ,  A01N25/26 ,  A01N33/12 ,  A01N35/10 ,  A01N37/48 ,  A01N39/02 ,  A01N43/16 ,  A01N43/18 ,  A01N43/40 ,  A01N43/88 ,  A61K9/16 ,  B01J2/00 ,  B01J2/02 ,  B01J8/24 ,  C09K3/00

Abstract: Granulated, water-soluble, hygroscopic product with an average diameter 200-2000 mu m, consisting of particles which are agglomerations of finer product particles having an average diameter 5-200 mu m and which are coated with a product layer. Also claimed is the preparation of the granulate by fluidised bed granulation, by spraying an aqueous solution or dispersion of the hygroscopic product onto the bed in counter-current to heated gases, and controlling the temperature, and quantity of gas, spray rate of the product and concentration of the product in the solution or dispersion so that the product moisture content during granulation is ≤ 50% higher than the residual moisture of the final granulate. Pref. the granulate is used to deliver a plant protection substance from: bentazone salts, or salts of 2,4-dichlorophenoxyacetic acid, 2-(2,4-dichlorophenoxy)propionic acid, 2,4,-dichlorophenoxybutyric acid, 2-methyl-4-chlorophenoxyacetic acid, 2-(2-methyl-4-chlorophenoxy)propionic acid, 2-methyl-4-chlorophenoxypropionic acid, mepiquat salts, esp. mepiquat chloride, chloromequat salts, esp. chloromequat chloride, sethoxydim, cycloxydim, 2-(1-(3-chloroallyloxy)iminopropyl)-5-(tetrahydropyran-4-yl)-3-hy droxycyclohex-2 -enone and salts of acifluorfen; most pref. is sodium bentazone or potassium bentazone with a bulk weight of at least 600 g/l.