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. Interaction between xanthate and pyrite can be changed by modifying the election structure of the surface of pyrite. Xanthate is adsorbed on the surface of intrinsic pyrite. But the amount of xanthate adsorbed on the surface of the pyrite with sulfur vacancy is more than that on the surface of the intrinsic pyrite due to the higher electron and vacancy density. Xanthate is not adsorbed......
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用含锰烟尘制取锰工艺研究胡宪1(1.辽宁省丹东市辽宁地质工程职业学院)摘 要:对黄铁矿,硫酸浸出工艺用于含锰烟尘制取硫酸锰进行了试验研究,确定了最佳工艺条件.试验锰总收率可达80%以上,产品硫酸锰中锰质量分数可稳定在30%以上.该工艺可操作性强,环保,并可获得一定的经济效益.关键词:含锰烟尘; 硫酸锰; 黄铁矿; 硫酸; 浸出......
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fraction increases by 11.76%, the iron recovery rate increases by 8.24%,and the output of arsenic-containing gypsum by-product is reduced by 41.67%. Key words: acid leaching solution; pyrite reduction...2.00 mol/L.硫铁矿还原Fe3+过程主要电极反应如表3所示. 表3 硫铁矿还原Fe3+过程主要电极反应 Table 3 Main electrode reactions in reduction of Fe3+ by pyrite 由表3可知:当H+浓度为1.30 mol/L,离子活度为1时,电极反应(1),(2)和(3)的电极电位分别为0.770,0.454和0.378 V;当H+浓度为......
J. Cent. South Univ. (2017) 24: 2288-2293 DOI: https://doi.org/10.1007/s11771-017-3640-4 Electronic structure and flotability of gold-bearing pyrite: A density functional theory study LIU Dan(刘丹... Central South University Press and Springer-Verlag GmbH Germany 2017 Abstract: Various incorporation of Au in pyrite and its effects on the geometrical structure, electronic structure and flotability......
几种黄铁矿破碎后破裂面上的原子分布特征于宏东1,2,孙传尧2(1.北京市北京科技大学2.北京市北京矿冶研究总院 矿物加工科学与技术国家重点实验室)摘 要:采用EBSD分析技术和Material Studio科学软件研究几种黄铁矿破裂面上的原子分布特征.结果表明,不同产地黄铁矿破裂后其破裂面不仅具有择优取向,同时因产地不同它们的破裂面的晶体学取向也不同,不同破裂面上Fe和S原子的密度不同. 关键词:工艺矿物学; 黄铁矿; EBSD; Material Studio; 晶体取向; 原子密度......
Trans. Nonferrous Met. Soc. China 30(2020) 484-491 Mechanism of sodium sulfide on flotation of cyanide-depressed pyrite Zhao CAO1,2,3, Peng WANG1, Wen-bo ZHANG1, Xiao-bo ZENG4, Yong-dan CAO1 1..., Chengdu 610041, China Received 3 June 2019; accepted 19 November 2019 Abstract: The mechanism of sodium sulfide (Na2S) on the flotation of cyanide-depressed pyrite using potassium amyl xanthate (PAX......