工程科学学报，第39卷.第8期：1152-1158.2017年8月 Chinese Journal of Engineering,Vol.39,No.8:1152-1158,August 2017 DOI:10.13374/j.issn2095-9389.2017.08.003;http://journals.ustb.edu.cn 组合抑制剂CCSL浮选分离PbS、ZnS与单斜Fe,-,S的 研究 白安平，宋永胜区，周鹤 北京有色金属研究总院生物冶金国家工程实验室，北京100088 区通信作者，E-mail:sysmba@163.com 摘要进行了组合抑制剂CCSL分离方铅矿、闪锌矿与磁黄铁矿的浮选研究.单矿物浮选实验结果表明，浮选过程添加该 组合抑制剂时，飚黄铁矿基本不浮，而方铅矿与闪锌矿的可浮性很好.方铅矿与磁黄铁矿混合矿浮选实验结果表明，添加该 组合抑制剂时，方铅矿的浮选回收率可达90%以上，而磁黄铁矿基本不浮，从而很好地实现两种矿物的分离：闪锌矿与磁黄铁 矿混合矿浮选实验结果表明，添加该抑制剂时也能实现两种可矿物的分离，但分离效果不及方铅矿与磁黄铁矿.X射线光电子 能谱、红外光谱、Zta电位测试表明，CCSL处理后的磁黄铁矿表面的醋酸根吸附不是单纯的物理吸附.紫外吸收光谱扫描结 果表明，CCSL中的醋酸根并没有阻碍磁黄铁矿表面双黄药的生成，磁黄铁矿可浮性下降仅仅是由于醋酸根对其造成的亲水 性大于双黄药造成的疏水性.CCSL中的醋酸根既与磁黄铁矿中的F·发生亲合，又与水中的H形成氢键，最终增强了磁黄 铁矿的亲水性：而醋酸根对方铅矿和闪锌矿基本没有影响，这是组合抑制剂CC$L能够分离方铅矿、闪锌矿与磁黄铁矿的 原因. 关键词CCSL;磁黄铁矿；方铅矿：闪锌矿；浮选分离 分类号TD952 Floatation separation of galena,sphalerite,and pyrrhotite by combined depressant CCSL BAI An-ping,SONG Yong-sheng,ZHOU He National Engineering Laboratory of Biohydrometallurgy,General Research Institute of Nonferrous Metals,Beijing 100088,China Corresponding author,E-mail:sysmba@163.com 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 CH,COObeing stronger than that caused by dixan- thogen,and the xanthate adsorption on pyrrhotite is not prohibited by CHCOO-.The CH,COO-reacts not only with pyrrhotite,but also with H'in water as a H-bond,so the pyrrhotite becomes hydrophilic. KEY WORDS CCSL;pyrrhotite;galena;sphalerite;flotation separation 磁黄铁矿是一种分布广泛的铁的硫化矿物，可以和多种矿物共生，其分子式为F.,S(一般x=0~ 收稿日期：2016-11-10 基金项目：国家科技支撑计划资助项目(2015BAB12B00)工程科学学报,第 39 卷,第 8 期:1152鄄鄄1158,2017 年 8 月 Chinese Journal of Engineering, Vol. 39, No. 8: 1152鄄鄄1158, August 2017 DOI: 10. 13374 / j. issn2095鄄鄄9389. 2017. 08. 003; http: / / journals. ustb. edu. cn 组合抑制剂 CCSL 浮选分离 PbS、ZnS 与单斜 Fe1 - x S 的 研究 白安平, 宋永胜苣 , 周 鹤 北京有色金属研究总院生物冶金国家工程实验室, 北京 100088 苣 通信作者, E鄄mail: sysmba@ 163. com 摘 要 进行了组合抑制剂 CCSL 分离方铅矿、闪锌矿与磁黄铁矿的浮选研究. 单矿物浮选实验结果表明,浮选过程添加该 组合抑制剂时,磁黄铁矿基本不浮,而方铅矿与闪锌矿的可浮性很好. 方铅矿与磁黄铁矿混合矿浮选实验结果表明,添加该 组合抑制剂时,方铅矿的浮选回收率可达 90% 以上,而磁黄铁矿基本不浮,从而很好地实现两种矿物的分离;闪锌矿与磁黄铁 矿混合矿浮选实验结果表明,添加该抑制剂时也能实现两种矿物的分离,但分离效果不及方铅矿与磁黄铁矿. X 射线光电子 能谱、红外光谱、Zeta 电位测试表明,CCSL 处理后的磁黄铁矿表面的醋酸根吸附不是单纯的物理吸附. 紫外吸收光谱扫描结 果表明,CCSL 中的醋酸根并没有阻碍磁黄铁矿表面双黄药的生成,磁黄铁矿可浮性下降仅仅是由于醋酸根对其造成的亲水 性大于双黄药造成的疏水性. CCSL 中的醋酸根既与磁黄铁矿中的 Fe 3 + 发生亲合,又与水中的 H + 形成氢键,最终增强了磁黄 铁矿的亲水性;而醋酸根对方铅矿和闪锌矿基本没有影响,这是组合抑制剂 CCSL 能够分离方铅矿、闪锌矿与磁黄铁矿的 原因. 关键词 CCSL; 磁黄铁矿; 方铅矿; 闪锌矿; 浮选分离 分类号 TD952 收稿日期: 2016鄄鄄11鄄鄄10 基金项目: 国家科技支撑计划资助项目(2015BAB12B00) Floatation separation of galena, sphalerite, and pyrrhotite by combined depressant CCSL BAI An鄄ping, SONG Yong鄄sheng 苣 , ZHOU He National Engineering Laboratory of Biohydrometallurgy, General Research Institute of Nonferrous Metals, Beijing 100088, China 苣 Corresponding author, E鄄mail: sysmba@ 163. com 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鄄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 dixan鄄 thogen, 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鄄bond, so the pyrrhotite becomes hydrophilic. KEY WORDS CCSL; pyrrhotite; galena; sphalerite; flotation separation 磁黄铁矿是一种分布广泛的铁的硫化矿物,可以 和多种矿物共生,其分子式为 Fe1 - x S ( 一般 x = 0 ~