Study on Column Leaching Behavior of Low-Grade High Calcium and Magnesium Copper Ore-Reference-Cited by-同舟云学术

Study on Column Leaching Behavior of Low-Grade High Calcium and Magnesium Copper Ore

Published:2024-08-14 Issue:8 Volume:14 Page:822
ISSN:2075-163X
Container-title:Minerals
language:en
Short-container-title:Minerals

Author:

Xu Jingyuan¹²,Qin Shuchen³,Zheng Chaozhen³,Sun Honghong³,Yang Baojun¹,Liu Sanping³,Qiu Guanzhou¹,Northwood Derek O.⁴,Waters Kristian E.⁵^ORCID,Ma Hao³

Affiliation:

1. College of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China

2. Norin Mining Ltd., Beijing 100055, China

3. BGRIMM Technology Group, Beijing 100070, China

4. Department of Mechanical, Automotive and Materials Engineering, University of Windsor, 401 Sunset Avenue, Windsor, ON N9B3P4, Canada

5. Department of Mining and Materials Engineering, McGill University, 3610 University, Montreal, QC H3A 0C5, Canada

Abstract

This paper studies the process mineralogy, mechanism, and kinetics of column leaching behavior of low-grade high-calcium–magnesium copper ore. The effect of sulfuric acid concentration, leach solution spraying intensity, and material particle size on column leaching kinetics is discussed. The kinetic analysis of column leaching of copper indicates that sulfuric acid concentration has a significant impact. As sulfuric acid concentration increases, the limiting step of reaction shifts from chemical reaction control to a combination of chemical reaction and diffusion mixing control. Spraying intensity also affects copper column leaching; increasing intensity shifts the limiting step from diffusion control to mixing control, thereby mitigating the effects of diffusion control. Regarding other elements, it is found that iron leaching is primarily controlled by chemical reaction, while calcium leaching is mainly controlled by chemical reaction. As sulfuric acid concentration increases from 10 g/L to 20 g/L, the limiting step for calcium leaching shifts from chemical reaction control to chemical reaction and diffusion-mixing control.

Publisher

MDPI AG

Link

https://www.mdpi.com/2075-163X/14/8/822/pdf

Reference32 articles.

1. Effect of carbon nanotubes’ addition on mechanical properties and thermal conductivity of copper;Borodianskiy;J. Mater. Sci.,2019

2. Structural properties of copper;Jona;Phys. Rev. B,2001

3. Jiang, Q., Zhang, P., Yu, Z., Shi, H., Wu, D., Yan, H., Ye, X., Lu, Q., and Tian, Y. (2021). A review on additive manufacturing of pure copper. Coatings, 11.

4. The engineering fatigue properties of wrought copper;Murphy;Fatigue Fract. Eng. Mater. Struct.,1981

5. Miya, N., Machogo-Phao, L.F.E., and Ntsendwana, B. (2023). Exploring copper oxide and copper sulfide for non-enzymatic glucose sensors: Current progress and future directions. Micromachines, 14.