The liquid-solid volume mass ratio is one of the key factors affecting the leaching effect, with the increasing ratio, the free H + in the solution increases, the leaching rates of Zn, Fe and In all show an increasing trend, and the increase of Zn is obvious.
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Stepwise extraction of zinc, indium and lead from secondary zinc oxide dusts experimental study.
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The sentences
With the continuous increase of the pH value of the leaching system, the leaching rate of lead and silver showed a decreasing trend, because when the pH value was low, the coordination ability of lead, silver ions and chloride ions was enhanced, and the lead was quickly dissolved into the leaching solution from the high-acid leaching indium slag, and with the increase of the pH value of the solution, the coordination ability of the two ions gradually weakened, which made the leaching rate decrease, and the results of the leaching thermodynamic analysis were verified.