The Iron Removal in Marmatite Concentrate Pressure Leaching Process

2017 2nd International Conference on Functional Materials and Metallurgy

材料科学;冶金学

Luo, Wen-Bo^1 ; Wang, Ji-Kun^1,2 ; Yin, G.^3

Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan

650093, China^1

Yunnan Metallurgy Group Parent Company, Kunming, Yunnan

650031, China^2

Yunan GoldandMining Group CO. LTD, Kunming, Yunnan

650224, China^3

关键词: Economic efficiency;    Iron precipitation;    Marmatite;    Potassium sulfate;    Pressure leaching;    Residence time;    Zinc oxide ores;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/303/1/012021/pdf
DOI  :  10.1088/1757-899X/303/1/012021

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

To modify the pressure leaching technology of horizontal autoclave using marmatite concentrate, an appropriate increase in the pulp's residence time in the horizontal autoclave is required. This increase will provide sufficient time for leaching to be completed in the first three chambers of the horizontal autoclave. Adding zinc oxide ore and potassium sulfate in the fourth chamber of the horizontal autoclave is needed to complete preliminary neutralization and iron precipitation in the horizontal autoclave. The pilot plant experimental results of the proposed technology are satisfactory, further shortening the process of pressure leaching and improving its economic efficiency.