Results 51 to 60 of about 31,354 (260)
Rate and Mechanism of Reduction-Dissolution of Chromite in Liquid Slags
High Temperature Materials and Processes, 2013 The dissolution of chromite from the Bushveld Complex of South Africa in liquid slags was studied in the temperature range 1550° to 1665°C under argon gas. The slag compositions were similar to those of ferrochromium production and stainless steel making.
Demir Orhan, Eric Rauf Hurman
doaj +1 more source
Crystals, 2017 In the present investigation, the oxidizing roasting process of chromite with sodium carbonate to prepare potassium dichromate crystals was studied in the microwave field with air, by heating the chromite and sodium carbonate.
Hua Liu +5 more
doaj +1 more source
Effect of particle shape properties on selective separation of chromite from serpentine by flotation
Physicochemical Problems of Mineral Processing, 2020 : Although many studies have been conducted on the morphological variations and its effects on flotation recoveries of a single mineral system, a systematic study for the flotation behavior of mixtures of minerals has not dwelled much.
O. Guven +5 more
semanticscholar +1 more source
Mineral reconnaissance at the Highland boundary with special reference to the Loch Lomond and Aberfoyle areas [PDF]
, 1983 Serpentinite bodies at the Highland Boundary in the Loch Lomond and Aberfoyle areas are extensively altered to magnesite-quartz and ferroan-dolomite-quartz rocks. Silicification was probably initiated before conversion to carbonate.
Fortey, N.J. +3 more
core
Deep Underground Science and Engineering, EarlyView.The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza +3 more
wiley +1 more source
Quality Assessment Method for Chromite Sand to Reduce the Number of Cast Steel Surface Defects [PDF]
Archives of Foundry EngineeringThis paper discusses the ability to apply the test method using a scanning electron microscope (SEM) together with EDS (Energy Dispersive Spectroscopy) analysis to assess the quality of fresh chromite sand delivered by various suppliers to Huta Małapanew
T. Wróbel +4 more
doaj +1 more source
Direct chromium alloying by chromite ore with the presence of metallic iron [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2013 Direct chromium alloying by chromite ore in EAF operation is a promising process in stainless steel production, which has the advantage of resource-saving, energy-saving, and environment-friendly.
Hu X., Wang H., Teng L., Seetharaman S.
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Platinum-group element mineralisation in the Unst ophiolite, Shetland [PDF]
, 1984 The ophiolitic basic and ultrabasic rocks of the island of Unst, Shetland comprise a sequence of harzburgites, dunites, clinopyroxene-rich cumulates, and gabbro, within tectonic blocks that have been thrust over a migmatite complex during the Laxer ...
Gunn, A.G., Leake, R.C., Styles, M.T.
core
Magnetic-induced phonon anisotropy in ZnCr$_2$O$_4$ from first principles
, 2006 We have studied the influence of magnetic order on the optical phonons of the geometrically frustrated spinel ZnCr$_2$O$_4$ from first-principles. By mapping the first-principles phonon calculations onto a Heisenberg-like model, we developed a method to ...
Craig J. Fennie +3 more
core +1 more source
steel research international, EarlyView.This study validates a recycling pathway for converting interconnect assemblies from end‐of‐life SOC stacks into commercial‐grade AISI 304 steels. Using scrap‐based steelmaking operations, austenitic cast steels with <4.0% δ‐ferrite are successfully produced.
Jeraldine Lastam +7 more
wiley +1 more source