Preferential deportment of low-iron sphalerite to lead concentrates

Mineralogical characterization of Ishiagu (Nigeria) complex sulphide ore

“…It was observed that there were variations in the chemical composition of ferrous sphalerite through variation in the ratios of zinc to iron at different particle sizes (Table 2), with finer particles having lower percentages of iron. A similar situation was observed by Zielinski et al (2000), where coarser sphalerite grains containing more solid solution iron was attributed to presence of different generations of sphalerite in the deposit that caused variations in sphalerite composition in the ore body. It is therefore believed that the hydrothermal melt forming the ferrous sphalerite in the ore deposit in this study might have crystallized over a range of temperatures and pressures, thereby forming an overlap of sphalerite phases with variations in their iron content.…”

Study on experiment and mechanism of thermal dissolved sulfuration of low grade lead-zinc oxide ore in lanpin

“…The disproportionation of sulfur in solution is a heterogeneous reaction process [5,6] which accords with the gas absorption model of the chemical reaction [7,8] . Assuming that it is a first-order reaction in the system and the diffusion equation can be written as…”

Structural Characteristics and Processability of Sphalerite in Lead-Zinc Ore of the Gorevka Deposit

“…Таким образом, можно считать, что при свинцовой и цинковой флотации в хвостах теряется сфалерит с повышенным содержанием железа, что соответствует литературным данным. В частности, на примере восьми фабрик было установлено, что сфалерит в свинцовом концентрате имеет на 0.4-0.6% пониженное содержание железа [33]. Распределение железа по минеральным формам было изучено методом гаммарезонансной спектроскопии (ГРС).…”