Kinetics of the Reductive Decomposition of Calcium Sulfate with Carbon Monoxide

摘要

The kinetics for the reductive decomposition of calcium sulfate in the presence of carbon monoxide were investigated using thermogravimetric equipment under various conditions of temperature (1050--1200/degree/C) and gas composition (0--7% carbon monoxide, 0--10% sulfur dioxide, and 10--50% carbon dioxide). Pellets reacted at selected conditions were withdrawn from the reaction system at various stages of the reaction and analyzed by x-ray powder diffraction, scanning electron microscopy with electron microprobe, and BET surface area analysis. 52 figs., 11 tabs. (ERA citation 14:017936)