PROCESS FOR THE PRODUCTION OF A GRANULE OF A COATED OXIDIZING COMPOUND SUCH GRANULE AND USES OF THE GRANULE

The invention provides a process for the production of a granule of a coated oxidizing compound which granule has good delayed release properties, said process comprising a) providing cores of an oxidizing compound produced by fluidized bed spray granulation, b) spraying on the oxidizing compound co...

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Bibliographische Detailangaben
Hauptverfasser:	MONTEITH, GEOFFREY, WATSON, WALTER, AFTEN, CARL, WEGNER, CAROLINE, LALAMA, RICHARD, ANDERSSON, CAROLINA, JOHANSSON, CECILIA, SVENSSON, MARKUS, EZZELARAB, MONA, SCHINKEL, FRANK, SANDQVIST, AJSE, OLSSON, LARSE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMISTRY COMPOUNDS THEREOF DYES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-METALLIC ELEMENTS PAINTS POLISHES TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The invention provides a process for the production of a granule of a coated oxidizing compound which granule has good delayed release properties, said process comprising a) providing cores of an oxidizing compound produced by fluidized bed spray granulation, b) spraying on the oxidizing compound cores an aqueous solution of metal sili- cate in a fluidized bed, said aqueous solution comprising at least 15 % by weight metal silicate, and c)drying to form a metal silicate coating layer on the oxidizing compound core, provided that the amount of metal silicate coating layer is at least 8%,preferably at least 10 % by weight based on the total weight of the granule. The invention also provides such granule andwell treatment fluids including such granule, and processes for use.