孔雀石浮选中瓜儿豆胶对滑石的选择性抑制研究

金属矿山 ›› 2025, Vol. 54 ›› Issue (7): 73-79.

孔雀石浮选中瓜儿豆胶对滑石的选择性抑制研究

张　瑞¹ 　印万忠¹　张西山¹ 　王　营²

1. 福州大学紫金地质与矿业学院,福建福州 350108;2. 沈阳有色金属研究院有限公司,辽宁沈阳 110141

出版日期:2025-07-15 发布日期:2025-08-12
通讯作者: 印万忠(1970—),男,教授,博士,博士研究生导师。
作者简介:张　瑞(1999—),女,硕士研究生。
基金资助:
国家自然科学基金项目(编号:52174239,52374259)。

Study on the Selective Inhibition of Guar Gum on Talc in Malachite Flotation

ZHANG Rui ¹ 　 YIN Wanzhong¹ 　 ZHANG Xishan ¹　 WANG Ying ²

1. Zijin School of Geology and Mining,Fuzhou University,Fuzhou 350108,China; 2. Shenyang Research Institute of Nonferrous Metals,Shenyang 110141,China

Online:2025-07-15 Published:2025-08-12

摘要/Abstract

摘要： 为实现硫化浮选中孔雀石与滑石的选择性分离,以瓜儿豆胶为抑制剂开展浮选试验,并利用接触角、 Zeta 电位、FTIR 和 XPS 分析手段探究其作用机理。浮选试验结果表明,瓜儿豆胶的加入可显著削弱脉石矿物滑石对孔雀石浮选的干扰。在 pH 值为 10、瓜儿豆胶用量 30 mg / L 的条件下,纯矿物浮选试验中孔雀石与滑石的浮游差达到 57. 18 个百分点;人工混合矿试验中,精矿 Cu 品位较未添加瓜儿豆胶时提高 4. 60 个百分点,MgO 品位降低至 10. 72%,精矿质量得到显著改善,实现了 2 种矿物的有效分离。机理分析表明,瓜儿豆胶使滑石表面由疏水变为亲水,改变其表面特性;且瓜尔豆胶能选择性吸附于滑石表面,在孔雀石表面几乎无吸附,该吸附方式为物理吸附。这一过程改善了浮选选择性,提升了孔雀石的浮选效率,进而实现了孔雀石和滑石的分离。

关键词: 瓜儿豆胶　抑制剂　孔雀石　滑石　浮选分离

Abstract: In order to achieve the selective separation of malachite and talc in sulfidization flotation,flotation tests were conducted using guar gum as an inhibitor,and the mechanism of its action was investigated by means of contact angle measurement,Zeta potential determination,FTIR and XPS analysis. The results of the flotation tests showed that the addition of guar gum could significantly reduce the interference of gangue mineral talc on malachite flotation. Under the conditions of pH = 10 and guar gum dosage of 30 mg / L, the floatability difference between malachite and talc in the pure mineral flotation test reached 57. 18 percentage points;In the artificial mixed ore test,the Cu grade of the concentrate increased by 4. 60 percentage points compared with that without guar gum,and the MgO grade decreased to 10. 72%,which significantly improved the concentrate quality and realized the effective separation of the two minerals. Mechanism analysis indicated that guar gum changed the surface properties of talc by making its surface transform from hydrophobic to hydrophilic;Moreover,guar gum could be selectively adsorbed on the surface of talc,with almost no adsorption on the surface of malachite,and the adsorption mode was physical adsorption. This process improved the flotation selectivity,enhanced the flotation efficiency of malachite,and thus realized the separation of malachite and talc.

Key words: guar gum,inhibitor,malachite,talc,flotation separation ,

中图分类号:

张　瑞　印万忠　张西山　王　营. 孔雀石浮选中瓜儿豆胶对滑石的选择性抑制研究 [J]. 金属矿山, 2025, 54(7): 73-79.

ZHANG Rui 　 YIN Wanzhong 　 ZHANG Xishan 　 WANG Ying . Study on the Selective Inhibition of Guar Gum on Talc in Malachite Flotation [J]. Metal Mine, 2025, 54(7): 73-79.

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