Studies on the acid activation of brazilian smectitic clays



Document title: Studies on the acid activation of brazilian smectitic clays
Journal: Quimica nova
Database: PERIÓDICA
System number: 000196208
ISSN: 0100-4042
Authors: 1
Institutions: 1Universidade de Sao Paulo, Escola Politecnica, Sao Paulo. Brasil
Year:
Season: May-Jun
Volumen: 24
Number: 3
Pages: 345-353
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Teórico
English abstract Fuller's earth and acid activated smectitic clays are largely used as bleaching earth for the industrial processing of vegetable, animal and mineral oils and waxes. The paper comments about the nomenclature used for these materials, the nature of the acid activation of smectitic clays (bentonites), activation laboratory procedures and presents a review of the acid activation of bentonites from 20 deposits from several regions of Brazil. The activated clays were tested and show good decolorizing power for soybean, castor, cottonseed, corn and sunflower oils
Disciplines: Química
Keyword: Química de alimentos,
Química orgánica,
Brasil,
Activación ácida,
Nomenclatura,
Bentonitas,
Aceites,
Aceites vegetales,
Blanqueo
Keyword: Chemistry,
Food chemistry,
Organic chemistry,
Brazil,
Acid activation,
Nomenclature,
Bentonite,
Bleaching,
Oils,
Vegetable oils
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