Preparation of Highly Concentrated Alumina Suspension through Investigstion of Proton Adsorption Density

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J. Korean Ceram. Soc. > Volume 33(2); 1996 > Article

Journal of the Korean Ceramic Society 1996;33(2): 163.

수소이온 흡착밀도의 고찰을 통한 고농도 알루미나 현탁액의 제조

김덕준, 김환

서울대학교 공과대학 무기재료공학과

Preparation of Highly Concentrated Alumina Suspension through Investigstion of Proton Adsorption Density

ABSTRACT

Measurements of proton adsorption density have been conducted in preparing alumina suspensions with aqueous solutions of HCL, HNO3, H2SO4 and H3PO4 And effects of anion acid concentration proton adsorption density and solid loading on the viscosity of the alumina suspensions have been investigated. Aqueous solutions of HCl. or HNO3 were suitable for the preparation of highly concentrated suspensions as the generation of surface charge on alumina particles was depressed by the specific adsorption of {{{{ {SO }`_{4 } ^{2- } }} and {{{{ { PO}`_{4 } ^{3- } }} Optimum conditions for maximizing solid loading were dependent upon proton adsorption density and acid concentration.

Key words: Alumina suspension, Inorganic acid, Proton adsorption density, Anion adsorption, Solid loading, Viscosity