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Conversion of calcium sulphide to calcium carbonate during the process of recovery of elemental sulphur from gypsum waste

Author: De Beer, Morris ; Maree, JP ; Liebenberg, L ; Doucet, FJ Date: Nov 2014 The production of elemental sulphur and calcium carbonate (CaCO(sub3)) from gypsum waste can be achieved by thermally reducing the waste into calcium sulphide (CaS), which is then subjected to a direct aqueous carbonation step for the generation ... Read more
The production of precipitated calcium carbonate from industrial gypsum wastes

Author: De Beer, Morris Date: May 2014 Precipitated calcium carbonate is a material of great interest due to its large range of applications. Although there are extensive reserves of limestone worldwide, very few deposits are of sufficient quality to provide raw materials for ... Read more
Synthesis of high-purity precipitated calcium carbonate during the process of recovery of elemental sulphur from gypsum waste

Author: De Beer, Morris ; Doucet, FJ ; Maree, JP ; Liebenberg, L Date: Aug 2015 We recently showed that the production of elemental sulphur and calcium carbonate (CaCO3) from gypsum waste by thermally reducing the waste into calcium sulphide (CaS) followed by its direct aqueous carbonation yielded low-grade carbonate ... Read more

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Browsing by Subject "Calcium sulphide"

Browsing by Subject "Calcium sulphide"

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