LONGONE filter presses are widely used in processing plants of the mining industry. The most frequent applications are the dewatering of fine coal and coal tailings (finest fractions) as well as the solid-liquid separation of the ore concentrate suspension concentrated by flotation and subsequently separated from mineral by-products. At this point, metals such as zinc, iron and copper are extracted, but precious metals such as gold, silver and platinum are also extracted in corresponding mines in the form of a puncture-proof filter cake. Membrane filter presses are preferably used here to achieve quantitatively high yields in cake washing and high dry matter contents by means of squeezing processing.
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