These notes provide detailed protocols for the laboratory-scale synthesis of calcium sulfide via carbothermic reduction of calcium sulfate, methods for the characterization of the product, and a …

Carbothermic reactions are used in the production of the elemental forms of many elements. The ability of metals to participate in carbothermic reactions can be predicted from Ellingham diagrams.

Typically, the reduction to CaS is carried out in a rotary kiln, using charcoal and gypsum as the sources of carbon and sulphate, respectively (Li and Zhuang, 1999).

May 1, 2014 · Decomposition of CaSO4 by carbothermic reduction in vacuum was modeled, analytically calculated in scheme of "Substance Gibb's Free Energy Functional Determinant", and experimentally...

Nov 1, 2024 · After elucidating the competitive relationship between CaSO 3 decomposition and reduction, and determining the impact of reaction factors on CaSO 3 reduction characteristics, this …

Apr 1, 1990 · Characterization and kinetics of reduction of CaSO4 with carbon monoxide for chemical-looping combustion. Combustion and Flame 2011, 158 (12) , 2524-2539. …

Apr 15, 1987 · This could indicate that the selective heating of microwave produced localized hot spots and induced the carbothermic reduction of CaSO4, present in coal, to CaS and CO2 [32,33] at a low …

CaS is produced by carbothermic reduction of calcium sulfate, which entails the conversion of carbon, usually as charcoal, to carbon dioxide: CaSO 4 + 2 C → CaS + 2 CO 2

This guide provides an objective comparison of the performance of common reducing agents for this process, supported by experimental data, to aid researchers in selecting the optimal methodology for …

Feb 1, 2016 · Calcium sulfate (CaSO 4) is proposed as an alternative sulfur source to convert the Fe-Ni-Cu-Co alloy to the matte phase. Solid carbon was used as a reducing agent and the influence of …