Recovery of Sulphur from Waste Gypsum
نویسندگان
چکیده
s of the International Mine Water Conference 19 – 23 October 2009 Proceedings ISBN Number: 978-0-9802623-5-3 Pretoria, South Africa Produced by: Document Transformation Technologies cc Conference organised by: Cilla Taylor Conferences RECOVERY OF SULPHUR FROM WASTE GYPSUM N.R. MBHELE, W. VAN DER MERWE, J.P. MAREE and D. THERON Exxaro Resources, P.O Box 9229, Pretoria, 0001, South Africa; E-mail: [email protected] CSIR, PO Box 395, Pretoria, 0001, South Africa; E-mail: [email protected] Sulphide Tech, Pretoria, 0001, South Africa; E-mail:[email protected]
منابع مشابه
Synthesis of high-purity precipitated calcium carbonate during the process of recovery of elemental sulphur from gypsum waste.
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 products (i.e. <90 mass% as CaCO3). In this study, we used the insight gained from our previous work and developed an indirect aqueous CaS carbonation process...
متن کاملConversion of calcium sulphide to calcium carbonate during the process of recovery of elemental sulphur from gypsum waste.
The production of elemental sulphur and calcium carbonate (CaCO3) 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 of hydrogen sulphide (H2S) and CaCO3. H2S can subsequently be converted to elemental sulphur via the commercially available chemical catalytic Claus process...
متن کاملتأثیر مصرف کودهای گوگرددار بر شاخص های رشد و عملکرد بادام زمین(Arachis hypogaea L.)
In order to evaluate the effects of sulphur fertilizer sources and amounts on growth indices and yield of peanut (Arachis hypogaea L. CV. NC2), a field experiment was conducted in Bandar Kiaashahr, Guilan province, Iran in 2004. The experiment was laid out in a factorial arrangement with two factors including sulphur sources (gypsum and single super phosphate) and sulphur rates (0, 30, 60 and 9...
متن کاملتأثیر مصرف کودهای گوگرددار بر شاخص های رشد و عملکرد بادام زمین(Arachis hypogaea L.)
In order to evaluate the effects of sulphur fertilizer sources and amounts on growth indices and yield of peanut (Arachis hypogaea L. CV. NC2), a field experiment was conducted in Bandar Kiaashahr, Guilan province, Iran in 2004. The experiment was laid out in a factorial arrangement with two factors including sulphur sources (gypsum and single super phosphate) and sulphur rates (0, 30, 60 and 9...
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Ab&r&-Sulphur isotope abundances of thirty-nine specimens of seventeen meteorites are reported. The resultril show again the remarkable constancy of the sulphur isotope ratios for meteorites of all types. However, differences in the SBa/Sa* ratios of 0.4 %a would appear to be significant. The Ssz/P4 ratio for meteorites is discussed as a possible base level from which fr~tion&tion in the earth’...
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