Process for preparing a meta-kaolin white pigment from kaolinite

Process for preparing a meta-kaolin white pigment from kaolinite

A fluidized bed reactor is supplied with fuel, oxygen-containing gas, and kaolinite, which contains water of crystallization. At least 80% by weight of the kaolinite have particle sizes in the range from 0.1 to 3 mm. A fluidized bed at temperatures in the range from 850 DEG to 950 DEG C. is formed i...

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Hauptverfasser: STOCKHAUSEN, WERNER, KAUPER, JOCHEN, RAHN, MARTIN, BAREUTHER, ERNST
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
CHEMISTRY
COMPOUNDS THEREOF
DYES
INORGANIC CHEMISTRY
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-METALLIC ELEMENTS
PAINTS
POLISHES
PREPARATION OF CARBON BLACK
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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WERNER
KAUPER
JOCHEN
RAHN
MARTIN
BAREUTHER
ERNST
description A fluidized bed reactor is supplied with fuel, oxygen-containing gas, and kaolinite, which contains water of crystallization. At least 80% by weight of the kaolinite have particle sizes in the range from 0.1 to 3 mm. A fluidized bed at temperatures in the range from 850 DEG to 950 DEG C. is formed in the fluidized bed reactor. A meta-kaolin white pigment which contains water of crystallization not in excess of 2% by weight is withdrawn from the fluidized bed reactor.
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subjects ADHESIVES
CHEMISTRY
COMPOUNDS THEREOF
DYES
INORGANIC CHEMISTRY
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-METALLIC ELEMENTS
PAINTS
POLISHES
PREPARATION OF CARBON BLACK
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
title Process for preparing a meta-kaolin white pigment from kaolinite
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