A STUDY OF THE FLOCCULATION OF PURE GOETHTTE, QUARTZ, AND KAOLINITE AND THE SELECTIVE FLOCCULATION OF AGBAJA IRON ORE PART I. ADSORPTION OF CASSAVA STARCH ON PURE GOETHITE, QUARTZ, AND KAOLINITE

C. O. Nebo Department of Metallurgical and Materials Engineering,Enugu State, University of Science and Technology, Enugu, Nigeria

H. Nwajiobi Department of Metallurgical and Materials Engineering,Enugu State, University of Science and Technology, Enugu, Nigeria

N. A. G. Aneke Department of Metallurgical and Materials Engineering,Enugu State, University of Science and Technology, Enugu, Nigeria

M. C. Fuerstenau Department of Chemical and Metallurgical Engineering, University of Nevada, Reno

ABSTRACT

The adsorption of cassava starch on quartz, kaolinite and goethite is presented as a function of starch concentration and pH. Cassava starch adsorbs on these three minerals in the order: kaolinite > goethite > quartz. Zeta potential measurements have been made for these minerals in the absence and presence of cassava starch. These measurements indicate that cassava starch adsorbs by hydrogen bonding to the surface of each mineral.

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A STUDY OF THE FLOCCULATION OF PURE GOETHTTE, QUARTZ, AND KAOLINITE AND THE SELECTIVE FLOCCULATION OF AGBAJA IRON ORE PART I. ADSORPTION OF CASSAVA STARCH ON PURE GOETHITE, QUARTZ, AND KAOLINITE

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A STUDY OF THE FLOCCULATION OF PURE GOETHTTE, QUARTZ, AND KAOLINITE AND THE SELECTIVE FLOCCULATION OF AGBAJA IRON ORE PART I. ADSORPTION OF CASSAVA STARCH ON PURE GOETHITE, QUARTZ, AND KAOLINITE

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