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Minghai Gim-Krumm  - - - 
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Humberto Estay

4 shared publications

Advanced Mining Technology Center (AMTC), University of Chile, Av. Tupper 2007 (AMTC Building), Santiago 8370451, Chile

Michelle Quilaqueo

1 shared publications

Advanced Mining Technology Center (AMTC), University of Chile, Av. Tupper 2007 (AMTC Building), Santiago 8370451, Chile

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Publication Record
Distribution of Articles published per year 
(2018)
Total number of journals
published in
 
2
 
Publications
Article 0 Reads 0 Citations A comprehensive study of glucose transfer in the human small intestine using an in vitro intestinal digestion system (i-... Minghai Gim-Krumm, Pablo Donoso, Rommy N. Zuñiga, Humberto E... Published: 01 October 2018
Journal of Membrane Science, doi: 10.1016/j.memsci.2018.07.080
DOI See at publisher website
Article 1 Read 0 Citations Two-Stage SART Process: A Feasible Alternative for Gold Cyanidation Plants with High Zinc and Copper Contents Humberto Estay, Minghai Gim-Krumm, Michelle Quilaqueo Published: 07 September 2018
Minerals, doi: 10.3390/min8090392
DOI See at publisher website ABS Show/hide abstract
The SART (sulfidization, acidification, recycling, and thickening) process (SP) has been successfully implemented in gold cyanidation plants to address issues associated with high cyanide-soluble copper content ores. However, this process could produce a relatively low grade precipitate, decreasing the sale price when gold plants have high zinc and copper content in their solutions. A potential option in this case would be the use of a two-stage SART process (TSSP) to produce separate zinc and copper precipitates. The additional equipment involved with this process would increase the capital cost, thereby generating concerns about the optimal range of metal contents that could justify this option. This study presents a methodology to quantify the feasible range of Cu/Zn concentrations that would justify a two-stage SART process. The study is based on a thermodynamic model and a simple economic evaluation. Results show the TSSP is preferred when the Cu/Zn ratio ranges between 0.2 and 1.5 with copper concentration higher than 500 mg/L. The TSSP appears to be a viable option to consider for gold plants having concentrations of copper and zinc higher than 200 mg/L for both metals.
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