組合抑制劑CCSL浮選分離PbS、ZnS與單斜Fe<sub>1-<i>x</i></sub>S的研究

白安平; 宋永勝; 周鶴

doi:10.13374/j.issn2095-9389.2017.08.003

組合抑制劑CCSL浮選分離PbS、ZnS與單斜Fe_1-xS的研究

doi: 10.13374/j.issn2095-9389.2017.08.003

北京有色金屬研究總院生物冶金國家工程實驗室, 北京 100088

基金項目:

國家科技支撐計劃資助項目(2015BAB12B00)

詳細信息

中圖分類號: TD952
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出版歷程
- 收稿日期: 2016-11-10

Floatation separation of galena, sphalerite, and pyrrhotite by combined depressant CCSL

National Engineering Laboratory of Biohydrometallurgy, General Research Institute of Nonferrous Metals, Beijing 100088, China

摘要

摘要: 進行了組合抑制劑CCSL分離方鉛礦、閃鋅礦與磁黃鐵礦的浮選研究.單礦物浮選實驗結果表明,浮選過程添加該組合抑制劑時,磁黃鐵礦基本不浮,而方鉛礦與閃鋅礦的可浮性很好.方鉛礦與磁黃鐵礦混合礦浮選實驗結果表明,添加該組合抑制劑時,方鉛礦的浮選回收率可達90%以上,而磁黃鐵礦基本不浮,從而很好地實現兩種礦物的分離;閃鋅礦與磁黃鐵礦混合礦浮選實驗結果表明,添加該抑制劑時也能實現兩種礦物的分離,但分離效果不及方鉛礦與磁黃鐵礦.X射線光電子能譜、紅外光譜、Zeta電位測試表明,CCSL處理后的磁黃鐵礦表面的醋酸根吸附不是單純的物理吸附.紫外吸收光譜掃描結果表明,CCSL中的醋酸根并沒有阻礙磁黃鐵礦表面雙黃藥的生成,磁黃鐵礦可浮性下降僅僅是由于醋酸根對其造成的親水性大于雙黃藥造成的疏水性.CCSL中的醋酸根既與磁黃鐵礦中的Fe³⁺發生親合,又與水中的H⁺形成氫鍵,最終增強了磁黃鐵礦的親水性;而醋酸根對方鉛礦和閃鋅礦基本沒有影響,這是組合抑制劑CCSL能夠分離方鉛礦、閃鋅礦與磁黃鐵礦的原因.
- CCSL /
- 磁黃鐵礦 /
- 方鉛礦 /
- 閃鋅礦 /
- 浮選分離
Abstract: The flotation separation of galena, sphalerite, and pyrrhotite was investigated with CCSL as a depressant. Flotation test results show that galena and sphalerite can float but pyrrhotite can barely float with CCSL as a depressant. The flotation tests also show that galena can be separated efficiently from pyrrhotite, and that sphalerite can be separated on the whole from pyrrhotite, but the separation efficiency of the former is much better. The X-ray photoelectron spectroscopy (XPS), IR spectrum, and Zeta potential analysis results indicate that the interaction of sodium acetate and pyrrhotite is not only physical absorption. The UV spectrum indicates that the decline in floatability of pyrrhotite is due to the hydrophilicity caused by CH₃COO^- being stronger than that caused by dixanthogen, and the xanthate adsorption on pyrrhotite is not prohibited by CH₃COO^-. The CH₃COO^- reacts not only with pyrrhotite, but also with H⁺ in water as a H-bond, so the pyrrhotite becomes hydrophilic.
- CCSL /
- pyrrhotite /
- galena /
- sphalerite /
- flotation separation

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參考文獻(2)

[12]	Sun W, Liu R Q, Cao X F, et al. Flotation separation of marmatite from pyrrhotite using DMPS as depressant. Trans Nonferrous Met Soc China, 2006, 16(3):671
[13]	Sun W, Hu Y H, Liu R Q. Interaction between small mercapto organic molecular and complex lead-zinc-sulfur-stibium sulfides//XXⅢ International Mineral Processing Congress. Istanbul, 2006