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Open AccessArticle

Physicochemical Characterization of Natural Wollastonite and Calcite

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Mineral Processing Engineering Department, Faculty of Mines, Istanbul Technical University, Maslak, 34469 Sarıyer/Istanbul, Turkey
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Mining Engineering Department, Faculty of Engineering, Adana Alparslan Türkeş Science and Technology University, Balcalı, Çatalan Cd. 201/5, 01250 Sarıçam/Adana, Turkey
*
Author to whom correspondence should be addressed.
Minerals 2020, 10(3), 228; https://doi.org/10.3390/min10030228
Received: 30 January 2020 / Revised: 24 February 2020 / Accepted: 26 February 2020 / Published: 2 March 2020
(This article belongs to the Section Mineral Processing and Metallurgy)
Wollastonite and calcite minerals are significant raw materials and are extensively used due to their unique properties. Wollastonite is used in plastics, paint, ceramics, paper, resins, and in construction as a substitution for asbestos due to its chemical stability, thermal resistivity, needle-like shape, and brightness. Calcite is one of the most used raw materials because of its low hardness, high alkalinity, sorptive properties, white and bright color. Wollastonite and calcite are two minerals found together in nature. The most common method used for separating these two minerals is flotation. In this study, the surface properties of pure mineral samples were investigated. The pH profiles of both minerals were obtained by measuring the surface charge of particles followed by the measurement of the zeta potential in different collector concentrations. The wettability of minerals was examined by measuring their contact angles. View Full-Text
Keywords: wollastonite; calcite; zeta potential; contact angle wollastonite; calcite; zeta potential; contact angle
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Kangal, M.O.; Bulut, G.; Guven, O. Physicochemical Characterization of Natural Wollastonite and Calcite. Minerals 2020, 10, 228.

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