Experimental Study on Ceramic Raw Material Preparation with Coarse−grained Gold Tailings and Cemented Filling with Fine−grained Gold Tailings

ZHOU Wentao; GAO Wenhao; LYU Xianjun; WANG Junxiang; ZHANG Hui

doi:10.13779/j.cnki.issn1001-0076.2024.08.021

2024 Vol. 44, No. 6

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ZHOU Wentao, GAO Wenhao, LYU Xianjun, WANG Junxiang, ZHANG Hui. Experimental Study on Ceramic Raw Material Preparation with Coarse−grained Gold Tailings and Cemented Filling with Fine−grained Gold Tailings[J]. Conservation and Utilization of Mineral Resources, 2024, 44(6): 97-102. doi: 10.13779/j.cnki.issn1001-0076.2024.08.021

Citation:

ZHOU Wentao, GAO Wenhao, LYU Xianjun, WANG Junxiang, ZHANG Hui. Experimental Study on Ceramic Raw Material Preparation with Coarse−grained Gold Tailings and Cemented Filling with Fine−grained Gold Tailings[J]. Conservation and Utilization of Mineral Resources, 2024, 44(6): 97-102. doi: 10.13779/j.cnki.issn1001-0076.2024.08.021

Experimental Study on Ceramic Raw Material Preparation with Coarse−grained Gold Tailings and Cemented Filling with Fine−grained Gold Tailings

1.
State Key Laboratory of Mineral Processing Science and Technology Mining and Metallurgy Technology Group Co., Ltd., Beijing 102628, China
2.
School of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, China
3.
School of Chemistry and Bioengineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, China
4.
Teacher Development Research Center of Education and Sports Bureau of Guancheng Hui Autonomous Region, Zhengzhou 450000, Henan, China

Received Date: 14 May 2024

Publish Date: 15 December 2024

Abstract

Abstract

This study investigates the utilization of gold tailings as raw materials through a process involving classification and magnetic separation. The specific approach involves “coarse−fine classification—coarse particle preparation for ceramic raw materials, fine particle filling.” The results demonstrate that effective classification can be achieved using a Φ150mm cyclone with a feed concentration of 28.28%, resulting in an underflow with +325 mesh content of 92.83% and an overflow with −325 mesh content of 96.09%. After undergoing a two−stage magnetic separation process (weak magnetic separation followed by strong magnetic separation), the underflow yields feldspar−quartz product with a whiteness of 59.09%, iron oxide content of 0.15%, and a recovery rate of 58.98%. This process effectively improves the quality, removes iron impurities, and enhances the whiteness of the product, meeting the industry standards for ceramic porcelain. Regarding the overflow material, a slurry concentration of 65% or higher and a cement−sand ratio of 1:10 can meet the requirements for cemented filling, achieving a compressive strength of 1 MPa after 28 days. The findings of this research can guide the resource utilization of gold tailings.
- gold tailings /
- coarse and fine classification /
- ceramic raw materials /
- fine particle filling /
- resource utilization

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References

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