Recovery of Sulphur Values From Gypsum and Anhydrite

CIM Bulletin, 1969

V. ROBINSON, Director, Simon-Carves of Canada Ltd., Toronto, Ont; J. D. McFARLANE, Chief Engineer, Simon-Carves Chemical Engineering Ltd., Cheshire, England

The paper begins with a brief account of the naturally occurring resources of gypsum and anhydrite and a discussion of their relative value and utility as sources of sulphur. The fundamental chemistry of recovering sulphur values from calcium sulphate is discussed.
Keywords: anhydrite, calcium sulphate, gypsum, Portland cement, sulphuric acid, Calcium, Cement, Gypsum, Materials, Plants, Process, Processes, Sulphate, Sulphates, sulphur