WorldCat Identities

Miller, Jan D.

Overview
Works: 6 works in 6 publications in 1 language and 80 library holdings
Genres: Conference papers and proceedings 
Roles: Author, Other
Classifications: TN523, 622.752
Publication Timeline
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Most widely held works by Jan D Miller
Pyrite depression by reduction of solution oxidation potential by University of Utah( Book )

1 edition published in 1971 in English and held by 67 WorldCat member libraries worldwide

A Selective collector for phosphate flotation : final report by Jan D Miller( Book )

1 edition published in 2002 in English and held by 7 WorldCat member libraries worldwide

Effects of sulfuric acid dosage on the baking of an enargite concentrate by M. Sadegh Safarzadeh( )

1 edition published in 2014 in English and held by 2 WorldCat member libraries worldwide

Liberation Limited Dolomite Rejection from Pebble Phosphate in Gravity Concentration by Sindhoora Puvvada( )

1 edition published in 2018 in English and held by 2 WorldCat member libraries worldwide

Récupération du tungstène à partir d'un skarn à faible contraste de séparation : apport de la modélisation moléculaire dans la flottation des minéraux calciques by Yann Foucaud( )

1 edition published in 2019 in English and held by 1 WorldCat member library worldwide

Nowadays, skarns represent more than 40% of the global resources in tungsten, which has been classified as a critical raw material in the European Union. In particular, the Tabuaço deposit constitutes an archetype of tungsten skarns and contains high amounts of calcium minerals, including fluorite, apatite, and vesuvianite, in close association with scheelite (CaWO4). According to their similar surface properties, the separation of these minerals by flotation with fatty acids is significantly difficult and, therefore, remains a scientific challenge. In this study, which has been conducted within the framework of the FAME H2020 European project, an economic, environment friendly, and transferable process has been developed for the Tabuaço ore to demonstrate the feasibility of the tungsten skarns processing. In the froth flotation process, the Na2CO3/Na2SiO3 system has exhibited the best efficiency in terms of gangue minerals depression due to considerable synergistic effects that have been subsequently described by statistical, spectroscopic, and atomistic methods. Meanwhile, the influence of the ratios between different carboxylic acids in the collector formulations (Tall Oil Fatty Acids) has been assessed to improve the flotation selectivity. In addition, the enhanced gravity separation (Falcon centrifuge concentrator) has been investigated, optimised, and combined with the flotation to produce a marketable scheelite concentrate assaying 63% WO3 with 59% recovery. Besides, to gain understanding in the molecular mechanisms involved in the flotation process, the fluorite and scheelite interfaces have been modelled using the density functional theory. This study has allowed to characterise the hydration state of these minerals, which display different affinities for water molecules. Furthermore, the adsorption of fatty acids on fluorite has been studied to unravel the adsorption mechanisms of these molecules on calcium minerals, confirmed by experimental investigations
Flotation and flocculation : from fundamentals to applications( Book )

1 edition published in 2003 in English and held by 1 WorldCat member library worldwide

 
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Audience level: 0.62 (from 0.55 for A Selectiv ... to 0.97 for Effects of ...)

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