Author/Authors
Tang، نويسنده , , Min and Liu، نويسنده , , Qi، نويسنده ,
DocumentNumber
3268444
Title Of Article
The acidity of caustic digested starch and its role in starch adsorption on mineral surfaces
شماره ركورد
10411
Latin Abstract
Starch is a natural polysaccharide that is used or exploited as a depressant/flocculant in the mineral processing industry. Native starch is typically digested with caustic soda or boiling water before use in such applications. How the digestion procedures affect the properties and functions of the starch has not been fully understood. In this study, zeta potential measurements, titration, Fourier transform infrared spectroscopic analysis, and turbidity measurements were utilized to detect and quantify the acidity of starch digested with different concentrations of caustic (sodium hydroxide or potassium hydroxide). The results revealed the formation of acidic groups on the starch after digestion by the alkali hydroxide. The generated acidic groups on starch seem to have contributed to the adsorption of starch on mineral surfaces.
From Page
94
NaturalLanguageKeyword
Flotation depressants , flocculants , Causticized starch , Carboxyl content , Alkali-catalyzed oxidation
JournalTitle
Studia Iranica
To Page
100
To Page
100
Link To Document