2019710 · Gypsum reprocessing for a cleaner environment. Since the late 1970s, OMV (Pty) Ltd has been reprocessing a waste gypsum dump created by a phosphate fertiliser plant in Potchefstroom. MechChem Africa visits this now modernised plant and talks to OMV mechanical engineer, Marinus van den Berg and the company’s MD, Oscar …
view morehemihydrate gypsum plant plant supplier. Gypsum mining equipment, gypsum crushing and grinding equipment Gypsum processing plantGypsum is a very useful processed material.
view more200731 · Abstract The hydration of calcium sulphate hemihydrate (CaSO 4 ·0.5H 2 O) leading to the crystallization of gypsum (calcium sulphate dihydrate – CaSO 4 ·2H 2 O) has been the subject of several investigations over a long period and a vast amount of data is widely distributed throughout in the literature. In this review article an overall picture of the …
view more2024326 · This study combined inorganic α-hemihydrate gypsum (α-HHG) with organic polyacrylamide (PAM) hydrogel to create a novel α-HHG/PAM composite material. Through this facile composite strategy, this fabricated material exhibited a significantly longer initial setting time and higher mechanical strength compared to α-HHG. The effects of the …
view more2024117 · The synthesis of α-calcium sulfate hemihydrate (α-CSH) from flue gas desulfurization (FGD) gypsum is a good way to realize the comprehensive utilization of FGD gypsum. To obtain α-CSH with the satisfactory performances, a facile hydrothermal-aging pretreatment process for FGD gypsum raw materials was proposed, where FGD gypsum …
view more200538 · The crystal morphology of the produced α-hemihydrate gypsum and, thus, its quality depend significantly on the composition of the liquid phase.
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view moreRequest PDF | On Nov 23, 2020, Qingjun Guan and others published Preparation of α-calcium sulfate hemihydrate from industrial by-product gypsum: A review | Find, read and cite all the research ...
view more202446 · Abstract Regulating the crystal morphology of low aspect ratio, short columnar α-hemihydrate gypsum (α-HH) is crucial due to its distinctive physical and chemical properties, which make it widely applicable. In this work, succinic acid, malic acid, and maleic acid were selected as the research objects, among which the number and …
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