·Gold is a precious strategic metal that is driving everyday life the electronics industry and the global economy Zhan et al 2021; Zhang et al 2022a Zhang et al 2022b Zhang et al 2022c Zhang et al 2022 However with the depletion of high quality gold ore refractory gold resources gold recovery efficiency rate of <50% after direct cyanide leaching
·The major chemical components of the sulfide refractory gold ore and pyrite are shown in Table 2 The sulfide refractory gold ore SRGO contains % Fe % S % As % Al and g/t Au The total content of Fe As and S is up to 63% of the sulfide refractory gold ore The pyrite contains % Fe and % S
·The global approach toward growth and development of industries is driving the increase in demand for precious metals such as gold Street et al 2015; Qin et al 2023 Furthermore the global gold reserves of ore types that can be processed more facilely are becoming exhausted Oktay et al 2016 Complex ore deposits or abandoned mine waste piles
·The gold grade in the original ore calculated from the dough balance is g/t The gold in the ore is mainly distributed in large grades so more than 60% of the metal is in the 1 mm grade Due to the fact that the bulk of gold in the ore is concentrated in large grades there is a high probability of finding unopened metal in it
·Reasonable and efficient process flow The production line usually adopts the process flow of crushing grinding ore dressing smelting and each link is carefully designed to ensure that the ore can be fully processed and extracted Economical investment and large production capacity The overall investment of the gold ore dressing production line is
·In addition uncertainty analysis based on Monte Carlo was applied to confirm results obtained in this study so that the results can be more reliable for policy making Results show that metal depletion was the major contributor to the total environmental impact of gold production dominated by the process of gold ore mining
·develop a gold recovery process compa rable to the cyanidation carbon in the pulp process Ion Ion exchange may be an efficient proce ss to recover gold from the halide lixivium
·They promote i the oxidation of the sulphide matrix rendering gold more accessible to the leaching solution; ii gold stabilisation a result of the formation of gold rich complexes and/or colloids; and iii gold solubilisation by enhancing the permeability of ore bodies Amachi 2008; Brehm et al 2005; Burford et al 2003; Hilson and
Broyage de calcaire en belgique
Dans des industries modernes, le poudre a une large application et l'industrie de fabrication de poudre…
La ligne de production de caillou et de basalte au Panama
Panama est l'un des marchés les plus importants de la Fabricant De Concasseur De Pierre SHBM en Amérique…
L’installation de concassage de granit au Sri Lanka
Le Sri Lanka est l'un des plus important marché d'Asie pour Fabricant De Concasseur De Pierre SHBM,…