Browsing Research Output by Subject "Chromite"
Now showing items 1-8 of 8
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Cr(VI) generation during flaring of CO-rich off-gas from closed ferrochromium submerged arc furnaces
(Springer, 2015)Ferrochromium (FeCr) is the only source of new Cr units used in stainless steel production, which is a vital modern day alloy, making FeCr equally important. Small amounts of Cr(VI) are unintentionally formed during several ... -
Cr(VI) generation during sample preparation of solid samples - a chromite ore case study
(WRC, 2010)South Africa holds more than 70% of the world's viable chromite ore reserves and produces ~46.2% of the world's high carbon ferrochrome. It was recently reported that beneficiated South African chromite ores contained ... -
Recycling pre-oxidized chromite fines in the oxidative sintered pellet production process
(SAIMM, 2019)The chromium (Cr) content of stainless steel originates from recycled scrap and/or ferrochrome (FeCr), which is produced mainly by the carbothermic reduction of chromite ore. The oxidative sintered pellet production process ... -
Review of Cr(VI) environmental practices in the chromite mining and smelting industry: relevance to development of the Ring of Fire, Canada
(Elsevier, 2017)During stainless steel production, new chromium units are obtained from ferrochrome, a relatively crude alloy produced from chromite ore. Large chromite reserves have recently been discovered in the so-called Ring of Fire, ... -
Sodium silicate cold-bonded chromite pellets for the ferrochromium industry: identifying a suitable process
(Dep. de Engenharia de Materiais, 2020)Chromite fines (defined as particles smaller than 6 mm) account for a significant fraction of mined South African chromite ore. These fines are pelletized to allow safe furnace smelting conditions. However, pelletization ... -
Unique challenges of clay binders in a pelletised chromite pre-reduction process.
(Elsevier, 2012)Ferrochrome producers strive towards lower overall energy consumption due to increases in costs, efficiency and environmental pressures. In South Africa, in particular, higher electricity prices have placed pressure on ... -
Utilisation of pre-oxidised ore in the pelletised chromite pre-reduction process
(Elsevier, 2016)Ferrochromium is a vital alloy mostly used for the production of stainless steel. It is produced from chromite ore, the only economically exploitable natural chromium resource, through carbothermic smelting in submerged ... -
Why is CaCO3 not used as an additive in the pelletised chromite pre-reduction process?
(Elsevier, 2013)The production of ferrochrome is an energy intensive process. At present, the pelletised chromite pre-reduction process is most likely the ferrochrome production process with the lowest specific energy consumption, i.e. ...