article·2000-01-01

Dispersing Effect of PBTCA for Alumina Suspension and the Fractal Characteristics of the Sediments

Yang Liu

Abstract

phosphonobutane-1,2, 4-tricarboxylic acid was used as a dispersant for alumina suspensions. Zeta potential, FTIR, effective diameter, specific surface area and sedimentation behaviour were studied. It was found that both the phosphonyl and the carboxyl groups participated in the chemical interaction of PBTCA with alumina. Settling experiments revealed the excellent dispersing ability of PBTCA. The fractal theory was employed to analyse the surface morphology of sediments. It was showed that the fractal dimension value was closely related to the suspension stability.
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Research context

OpenAlex topics: Water Quality Monitoring and Analysis

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