Chemical and Biological Engineering
Journal or Book Title
Industrial & Engineering Chemistry Process Design and Development
Tremendous domestic reserves of gypsum and anhydrite constitute a potential source of raw material f i x sulfur-based chemicals. As in Europe today, calcium sulfate may become one of our principal raw materials for sulfuric acid. Several European acid plants are based on a process in which sulfur dioxide is freed from anhydrite by heating the latter with coke and shale to a sintering temperature (4). The sulfur dioxide is converted into acid and the clinker is used for portland cement.
American Chemical Society
Wheelock, Thomas D. and Boylan, D.R., "Reductive Decomposition of Gypsum by Carbon Monoxide" (1960). Chemical and Biological Engineering Publications. 273.