Pressure Filtration and Cake Washing for Cyanide Removal from All-slime Cyanidation Tailing
Received:April 08, 2021  Revised:April 13, 2021
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DOI:doi:10.3969/j.issn.1007-7545.2021.09.012
KeyWord:cyanidation tailing; pressure filtering; cake washing
                       
AuthorInstitution
ZHENG Chun-long 东北大学
CHANG Yong-feng 东北大学
YUAN Jia-sheng 东北大学
XIE Min-xiong 赤峰柴胡栏子黄金矿业有限公司
JIANG Wang 赤峰柴胡栏子黄金矿业有限公司
XU Guang-pin 赤峰柴胡栏子黄金矿业有限公司
DONG Guang-qiang 赤峰柴胡栏子黄金矿业有限公司
LU Dian-kun 东北大学
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Abstract:
      Large quantities of cyanide-containing tailings produced in cyanidation processes need to be de-cyanided prior to final disposal. Effects of washing ratio on efficiency of replacement washing of cyanide tailing pressure-filtering cake produced by all-slime cyanidation process were investigated. The results of small-scale laboratory tests show that washing efficiency rises approximately linearly with washing ratio within 2—3. Rising washing ratio beyond three results very limited impact on washing performance. Industrial-scale tests confirm that there is a suitable range for selecting of washing ratio to compromise cyanide washing efficiency and facility utilization.
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