Adsorption of cyanide by typical minerals of cyanide slag

TU Yubo; HAN Peiwei; WEI Lianqi; ZHANG Xiaomeng; DU Yingchao; WANG Yongliang; YE Shufeng

doi:10.11949/0438-1157.20190139

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Adsorption of cyanide by typical minerals of cyanide slag

Energy and environmental engineering | 更新时间：2026-07-24

- Adsorption of cyanide by typical minerals of cyanide slag
- CIESC Journal Vol. 70, Issue 7, Pages: 2684-2690(2019)
- 作者机构：
  
  1.中国科学院过程工程研究所，多相复杂系统国家重点实验室，北京100190
  2.中国科学院大学，北京 100049
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190139
  CLC： TF 09
- Received：21 February 2019，
  
  Revised：2019-04-16，
  
  Online First：24 July 2026，
  
  Published：05 July 2019
- 稿件说明：
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涂玉波, 韩伟培, 魏连启, 仉小猛, 杜英超, 王永良, 叶树峰. 氰化渣典型矿物对氰的吸附[J]. 化工学报, 2019, 70(7): 2684-2690

TU Yubo, HAN Peiwei, WEI Lianqi, ZHANG Xiaomeng, DU Yingchao, WANG Yongliang, YE Shufeng. Adsorption of cyanide by typical minerals of cyanide slag[J]. CIESC Journal, 2019, 70(7): 2684-2690
涂玉波, 韩伟培, 魏连启, 仉小猛, 杜英超, 王永良, 叶树峰. 氰化渣典型矿物对氰的吸附[J]. 化工学报, 2019, 70(7): 2684-2690 DOI： 10.11949/0438-1157.20190139.

TU Yubo, HAN Peiwei, WEI Lianqi, ZHANG Xiaomeng, DU Yingchao, WANG Yongliang, YE Shufeng. Adsorption of cyanide by typical minerals of cyanide slag[J]. CIESC Journal, 2019, 70(7): 2684-2690 DOI： 10.11949/0438-1157.20190139.

摘要

氰化提金过程中产生大量的氰化渣，被视为是危险固体废物。氰化渣主要由黄铁矿、石英和硅酸盐等矿物组成。本实验采取静态吸附法，模拟了氰化渣中几种典型矿物及其复合矿物对氰的吸附。研究表明:矿物对氰的吸附呈线性特征，但吸附能力各不相同

各矿物对氰的吸附量大小顺序是

黄铁矿

模拟氰化渣

硅酸盐矿

石英

；石英对氰几乎不产生吸附，黄铁矿、硅酸盐矿物混合物和模拟氰化渣对氰的饱和吸附量分别约为13.89、1.09和6.89 mg/g。开发了一种数学模型用来评估石英、硅酸盐矿物混合物和黄铁矿含量对氰化渣吸附氰总量的影响。红外分析表明，CN

吸附在矿物表面，改变了氧化产物，生成了新的物质，促进了矿物对CN

的吸附。

Abstract

A large am

ount of cyanide slag is produced during the cyanidation and gold extraction process and is considered as a hazardous solid waste. Cyanide slag was mainly consisted of pyrite

quartz and silicate. The static adsorption method was applied to simulate the cyanide ion adsorption on several typical minerals and their complex minerals of cyanide tailing in this study. Results showed that the adsorption of CN

by minerals is linear

but the adsorption capacity is different

and the adsorption amount of CN

on unit mass could be classified as follows: pyrite

synthetic cyanide tailing

silicate mixture

quartz. Quartz had hardly any adsorption of CN

. The CN

adsorption capacity of silicate mixture

pyrite and synthetic cyanide slag were about 1.09

13.89 and 6.89 mg/g

respectively. A mathematical model was developed to estimate the effects of quartz

silicate and pyrite on the CN

adsorption capacity of cyanide tailing. The Fourier transform infrared spectroscopy showed that a significant CN

adsorption peak appeared for silicate

pyrite and cyanide slag

and oxidation products of pyrite changed significantly after the adsorption of CN

关键词

Keywords

references

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