Use of quillaja saponins (Quillaja saponaria Molina) to control acid mist in copper electrowinning processes - Part 1. Laboratory scale evaluation

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dc.contributor.authorSan Martin, RM
dc.contributor.authorOtero, AF
dc.contributor.authorFigueroa, M
dc.contributor.authorEscobar, V
dc.contributor.authorCruz, A
dc.date.accessioned2024-01-10T14:22:22Z
dc.date.available2024-01-10T14:22:22Z
dc.date.issued2005
dc.description.abstractThis 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 tested: QL 1000 (R) (non-refined product, 8.4% saponin content) and Mistop (R) (refined product, 16% saponin content). Laboratory experiments determined the effects of both products on electrolyte surface tension (ST), solvent extraction process (SX), current efficiency (CE) and cathode quality.
dc.description.abstractA surface tension of 55 dyn/cm was attained with 10 ppm of Mistop (R) and 25 ppm of QL 1000 (R), respectively. This corresponded to similar saponin levels for both products (1.6-2.1 ppm saponins). At these concentrations, Mistop (R) had little negative impact on the SX process, and no effect on CE and cathode quality. However, QL 1000 (R) had a negative impact on phase disengagement time and extraction efficiency. Based on this, Mistop (R) was recommended for further testing at pilot plant and industrial scale in the facilities of Radomiro Tomic copper mine (Calama, Chile), at a dose of 8 to 12 ppm. (c) 2004 Published by Elsevier B.V.
dc.fechaingreso.objetodigital25-03-2024
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.hydromet.2004.11.009
dc.identifier.issn0304-386X
dc.identifier.urihttps://doi.org/10.1016/j.hydromet.2004.11.009
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79920
dc.identifier.wosidWOS:000230020800001
dc.information.autorucIngeniería;Otero A;S/I;1001062
dc.information.autorucIngeniería;San Martín R;S/I;51656
dc.issue.numero3-4
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final170
dc.pagina.inicio163
dc.publisherELSEVIER SCIENCE BV
dc.revistaHYDROMETALLURGY
dc.rightsacceso restringido
dc.subjectacid mist
dc.subjectcopper electrowinning
dc.subjectsaponin
dc.subjectQuillaja saponaria
dc.subjectKIDD CREEK ELECTROLYTE
dc.subjectANTIMONY
dc.titleUse of quillaja saponins (Quillaja saponaria Molina) to control acid mist in copper electrowinning processes - Part 1. Laboratory scale evaluation
dc.typeartículo
dc.volumen77
sipa.codpersvinculados1001062
sipa.codpersvinculados51656
sipa.indexWOS
sipa.trazabilidadCarga SIPA;09-01-2024
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