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This work describes the use of extracts of the Chilean quillaja tree (Quillaja saponaria Molina) as alternative low cost surfactants for the control of acid mist in copper electrowinning (EW). Quillaja extracts contain triterpenoid saponins, which are natural surfactants traditionally used as foaming agents in food and beverages. Two commercial products with different degrees of purification were...
This work describes the use of Mistop®, a novel surfactant of natural origin that contains primarily triterpenoid saponins (active ingredient), to control acid mist in copper electrowinning (EW). Previous laboratory tests indicated that Mistop® has no negative effects on cathode quality, current efficiency, and overall solvent extraction (SX) process conditions (e.g. phase disengagement time, extraction/stripping...
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