Search for dissertations about: "Dry grinding"
Showing result 1 - 5 of 18 swedish dissertations containing the words Dry grinding.
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1. Comparative Study of Chemical Additives Effects on Dry Grinding Performance
Abstract : The application of chemical additives, known as grinding aids (GA), dates back to 1930 in the cement industry. As opposed to the cement industry, where the use of GAs is on the final processing step, it could be one of the first process steps in ore beneficiation. READ MORE
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2. Application of Chemical Additives in Minerals Beneficiation – Implications on Grinding and Flotation Performance
Abstract : The application of chemical additives, known as grinding aids (GAs), dates to 1930 in the cement industry. Unlike the cement industry, where the use of GAs is in the final processing step, it could be one of the first processing steps in ore beneficiation. READ MORE
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3. Rail grinding and its impact on the wear of wheels and rails
Abstract : Rail grinding has been employed since the 1980s in maintaining optimal rail profile as well as in the elimination of surface defects such as corrugations and head-checks. Likewise, the wheel sets also require re- turning to remove surface defects and restore the desired profile. READ MORE
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4. Changes of Ca and Mg silicate minerals induced by grinding and interaction with water
Abstract : FT-IR spectroscopy, powder XRD, 29Si MAS-NMR, 13C CP/1H-decoupling MAS-NMR, BET surface area and CO2-content measurements have been used to study the processes which occur during dry grinding of Ca and Mg silicate minerals: diopside, enstatite, åkermanite, and wollastonite. In the course of grinding alongside to hydration and amorphisation considerable sorption of atmospheric CO2 by ground minerals occur. READ MORE
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5. Mechanical activation of hematite using different grinding methods with special focus on structural changes and reactivity
Abstract : The mechanical treatment of solids is one of the most common and widely used operations which man has been concerned from the very beginning of the history of civilization. Nowadays, mechanical activation has a wide range of application potentials. READ MORE