NATURAL SODIUM BENTONITE CLAY WITH IMPROVED RHEOLOGICAL PROPERTIES

The invention relates to a process for treatment of a natural clay material comprising sodium bentonite comprising i) Preparing an aqueous slurry of a natural clay material comprising sodium bentonite, ii) Removing non-sodium bentonite impurities from the aqueous slurry, and iii) Removing water from...

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Bibliographische Detailangaben
Hauptverfasser:	DZIWOK, Klaus, HEININGER, Wolfgang, WOOCKER, Axel, BÜHNE, Sylvia, KLEEBERGER, Hannelore, LORK, Anette
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMISTRY COMPOUNDS THEREOF DYES HUMAN NECESSITIES HYGIENE INORGANIC CHEMISTRY MEDICAL OR VETERINARY SCIENCE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-METALLIC ELEMENTS PAINTS POLISHES PREPARATION OF CARBON BLACK PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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Beschreibung
Zusammenfassung:	The invention relates to a process for treatment of a natural clay material comprising sodium bentonite comprising i) Preparing an aqueous slurry of a natural clay material comprising sodium bentonite, ii) Removing non-sodium bentonite impurities from the aqueous slurry, and iii) Removing water from the aqueous slurry by spray drying in a spray drying apparatus to prepare a solid treated sodium bentonite clay. L'invention concerne un procédé de traitement d'un matériau d'argile naturelle comprenant de la bentonite sodique comprenant i) la préparation d'une suspension aqueuse d'un matériau d'argile naturelle comprenant de la bentonite sodique, ii) l'élimination d'impuretés de bentonite non sodique de la suspension aqueuse, et iii) l'élimination de l'eau de la suspension aqueuse par séchage par pulvérisation dans un appareil de séchage par pulvérisation pour préparer une argile de bentonite sodique traitée solide.