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Open Access Energy-effective Grinding of Inorganic Solids Using Organic Additives

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We present our research findings related to new formulations of the organic additives (grinding aids) needed for the efficient grinding of inorganic solids. Even though the size reduction phenomena of the inorganic solid particles in a ball mill is purely a physical process, the addition of grinding aids in milling media introduces a complex physicochemical process. In addition to further gain in productivity, the organic additive helps to reduce the energy needed for grinding, which in the case of cement clinker has major environmental implications worldwide. This is primarily due to the tremendous amounts of cement produced and almost 30% of the associated electrical energy is consumed for grinding. In this paper, we examine the question of how to optimize these grinding aids linking molecular insight into their working mechanisms, and also how to design chemical additives of improved performance for industrial comminution.

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Document Type: Research Article

Affiliations: 1: Department of Civil, Environmental and Geomatic Engineering ETH Zurich, CH-8093 Zurich, Switzerland. [email protected] 2: Sika Technology AG Tüffenwies 16, CH-8048 Zurich, Switzerland 3: Sika Deutschland GmbH Peter-Schuhmacherstr. 8, D-69181 Leimen, Switzerland 4: Department of Chemical and Biological Engineering University of Colorado Boulder, Boulder, CO 80309-0596, USA 5: Department of Civil, Environmental and Geomatic Engineering ETH Zurich, CH-8093 Zurich, Switzerland

Publication date: August 1, 2017

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  • International Journal for Chemistry and Official Membership Journal of the Swiss Chemical Society (SCS) and its Divisions

    CHIMIA, a scientific journal for chemistry in the broadest sense, is published 10 times a year and covers the interests of a wide and diverse readership. Contributions from all fields of chemistry and related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each devoted to an area of great current significance.

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