Development of an empirical model for copper extraction from chalcocite in chloride media

IF 0.8 4区 工程技术 Q4 ENGINEERING, CHEMICAL Hemijska Industrija Pub Date : 2020-11-04 DOI:10.2298/hemind200424031s
M. Saldaña, Freddy Rodríguez, Anyelo Rojas, K. Pérez, Hugo Javier Angulo Palma
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引用次数: 5

Abstract

Multivariate models are a useful tool when studying the effects of independent variables on one or more dependent variables, since this approach allows modeling of the dynamics of complex systems based on simple analytical models with considerable certainty. Due to the decrease in the copper oxide mineral grades, leaching of copper sulfide minerals (secondary sulfides) has positioned itself as a benchmark of operation for the Chilean mining industry. The present work proposes the study of the effects of sulfuric acid, chloride concentration and time on the extraction of copper from sulfuric minerals (chalcocite), considering an experimental design, the surface optimization methodology and the adjustment of a quadratic model. The experimental data were adjusted by multiple regression analysis and were statistically analyzed. A model was developed to represent the copper extraction from the Cu 2 S mineral as a function of the statistically significant variables (chloride concentration and time) that contribute to explain the variation of the response variable under the set of parameters sampled.
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氯化物介质中辉铜矿萃取铜的经验模型的建立
当研究自变量对一个或多个因变量的影响时,多元模型是一个有用的工具,因为这种方法允许基于简单的分析模型对复杂系统的动力学进行建模,具有相当大的确定性。由于氧化铜矿物品位的下降,硫化铜矿物(次生硫化物)的浸出已成为智利采矿业操作的基准。本文通过实验设计、表面优化方法和二次模型的调整,研究了硫酸、氯化物浓度和时间对硫矿物(辉铜矿)中铜的提取效果的影响。实验数据经多元回归分析调整,并进行统计学分析。建立了一个模型,将cu2s矿物中铜的提取作为统计显著变量(氯化物浓度和时间)的函数,这些变量有助于解释采样参数集下响应变量的变化。
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来源期刊
Hemijska Industrija
Hemijska Industrija 工程技术-工程:化工
CiteScore
1.60
自引率
11.10%
发文量
12
审稿时长
6-12 weeks
期刊介绍: The Journal Hemijska industrija (abbreviation Hem. Ind.) is publishing papers in the field of Chemical Engineering (Transport phenomena; Process Modeling, Simulation and Optimization; Thermodynamics; Separation Processes; Reactor Engineering; Electrochemical Engineering; Petrochemical Engineering), Biochemical Engineering (Bioreactors; Protein Engineering; Kinetics of Bioprocesses), Engineering of Materials (Polymers; Metal materials; Non-metal materials; Biomaterials), Environmental Engineeringand Applied Chemistry. The journal is published bimonthly by the Association of Chemical Engineers of Serbia (a member of EFCE - European Federation of Chemical Engineering). In addition to professional articles of importance to industry, scientific research papers are published, not only from our country but from all over the world. It also contains topics such as business news, science and technology news, information on new apparatus and equipment, and articles on environmental protection.
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