Kaolin clay-based pigment
作者： Richard A. Slepetys , Fred R. Huege , David L. Catone
DOI:
关键词: Aluminosilicate 、 Mixing (process engineering) 、 Brightness 、 Anhydrous 、 Pigment 、 Coating 、 Mineralogy 、 Amorphous solid 、 Materials science 、 Chemical engineering 、 Calcination
摘要: A substantially white, anhydrous, amorphous aluminosilicate pigment is obtained by calcining a combination of previously uncalcined kaolin clay and an alumina source. The calcination carried out at temperature about 870° C. to 1400° C., preferably 1260° for suitable period time, e.g., 0.1 3 hours. pigments the foregoing method display enhanced brightness greater than merely additive which would be mixing with calcined are otherwise well suited use as paper-filling or coating pigments.
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