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- 1Mineral Flotation, Millerite, Electrochemistry
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Fundamental Studies of the Surface Properties of Millerite under Different Pulp Potentials and Water Chemistry
DownloadSpring 2019
Millerite (NiS) is one of the less common nickel-bearing minerals that is typically formed as a replacement for pentlandite. Due to the scarcity of millerite, its flotation behavior is not well understood in literature. In this study, the surface properties of millerite were investigated. Cyclic...
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Fundamental Study of Flotation Behaviors and Oxidation Mechanisms of Polymorphic Pyrrhotite and Pentlandite
DownloadFall 2021
This thesis is mainly concerned with understanding the flotation behaviors of the polymorphic pyrrhotite (Fe1-xS, 0 < x ≤ 0.125) and pentlandite ((Ni,Fe)9S8) to find better measures for their flotation separation. The flotation separation of pentlandite from pyrrhotite is a complicated issue due...
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Spring 2013
In this study, the effect of three polymer flocculants, polyacrylamide (PAM), Magnafloc 1011 (MF) and Al(OH)3-polyacrylamide (Al-PAM), on the settling of mineral freshwater and saline tailings was investigated. The settling of tailings significantly depends on solution salinity, polymer...
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Fall 2014
In this study, the interactions between pentlandite and gangue minerals (i.e. serpentine, olivine, magnesite) were investigated by directly measuring the zeta potential distributions. In addition, an atomic force microscope (AFM) was used to measure the interaction forces between a silicon...
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Fall 2017
In this study, an oxidant-induced mussel-inspired modification was implemented to prepare modified polyvinylidene fluoride (PVDF) membrane utilizing the deposition of polydopamine (PDA) coating, which was oxidized by sodium periodate under a slightly acidic condition (pH = 5.0). The surface...
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Petroleum Diesel-Assisted Ambient Temperature Aqueous-Nonaqueous Hybrid Bitumen Extraction Process
DownloadFall 2017
Solvents are used in the oil sands industry to reduce the viscosity of bitumen and hence to assist recovery of bitumen prior to its upgrading. Solvents can also be added to the ores to reduce energy consumption during the aqueous-nonaqueous hybrid bitumen extraction process at ambient conditions....