Search for dissertations about: "Saeed Chehreh Chelgani"
Found 4 swedish dissertations containing the words Saeed Chehreh Chelgani.
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1. 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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2. 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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3. Geometallurgical study of historical tailings from the Yxsjöberg tungsten mine in Sweden : Characterization and reprocessing options
Abstract : Tungsten (W) is listed among the European Union (EU) critical raw materials (CRMs) for its supply risk and economic importance. Primarily, tungsten is produced from scheelite and wolframite mineral ores with 0.08-1.5% tungsten trioxide (WO3) grade. READ MORE
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4. Reprocessing historical tailings for possible remediation and recovery of critical metals and minerals : The Yxsjöberg case
Abstract : With increasing consumption of primary mineral resources, the generation of mining wastes has also increased thus requiring the mining industry to address the growing environmental concerns. Waste rock and tailings are potential secondary sources of critical raw materials currently in short supply in the European Union, but also a source for environmental issues like acid mine drainage. READ MORE