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- W2034134610 abstract "The kinetics of reduction of copper(I) sulfide fines with hydrogen gas were determined in the range 500–1040°C using thermogravimetry. The rate constant values derived from the experimental results were plotted in an Arrhenius manner: at moderate temperatures (500–655°C), the activation energy for the reduction process was found to be 57.3 kj mol−1. At elevated temperatures, due to mass-transfer effects, the activation energy declines to 38.8 kJ mol−1. The morphology of the copper product was examined by scanning electron microscopy. The Cu2S grains were found to be reduced nontopochemically: in the range 500–750°C, the copper product consisted of fibers. But at higher temperatures (850–1020 °C), sintered spongy copper was formed. The mechanism of fiber-growth was elucidated." @default.
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- W2034134610 date "1988-04-01" @default.
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- W2034134610 title "Reduction of copper(I) sulfide with hydrogen and the morphology of Cu(s) product" @default.
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- W2034134610 doi "https://doi.org/10.1016/0168-7336(88)80012-3" @default.
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