Effect and mechanism of siderite on reverse anionic flotation of quartz from hematite
Effect and mechanism of siderite on reverse anionic flotation of quartz from hematite
复制标题
菱铁矿对赤铁矿反阴离子浮选石英的影响及机理
DOI：
10.1007/s11771-016-3048-6
复制
发表时间：
2016-01
影响因子：
4.4
通讯作者：
Liu Jian
中科院分区：
文献类型：
--
作者：
Luo Xi-mei;Yin Wan-zhong;Wang Yun-fan;Sun Chuan-yao;Ma Ying-qiang;Liu Jian
反浮选工艺是提高铁精矿质量、降低铁精矿杂质的有效途径之一。在强碱性条件下，以脂肪酸为捕收剂，淀粉为铁矿物的赋形剂，钙离子为石英的活化剂，在菱铁矿存在下，反浮选赤铁矿的浮选效果较差。采用溶液化学、紫外分光光度法和傅立叶变换红外光谱法研究了菱铁矿对赤铁矿反浮选的作用机理。在强碱性条件下，以油酸钠为捕收剂，玉米淀粉为铁矿物的吸附剂，氯化钙为石英的活化剂时，菱铁矿对石英有强烈的抑制作用，菱铁矿溶解产生的CO 32-与氯化钙中的Ca 2+发生化学反应，使淀粉吸附在碳酸钙上，沉淀在石英表面，从而提高了石英的亲水能力。
Reverse flotation technology is one of the most efficient ways to improve the quality and reduce impurity of iron concentrate. Mineral processors dealing with hematite face a challenge that the flotation results of reverse flotation of hematite are poor in presence of siderite using fatty acid as collector, starch as depressant of iron minerals and calcium ion as activator of quartz at strong alkaline pH. In this work, the effect of siderite on reverse anionic flotation of quartz from hematite was investigated. The effect mechanism of siderite on reverse flotation of hematite was studied by solution chemistry, ultraviolet spectrophotometry (UV) and Fourier transform infrared spectroscopy (FTIR). It was observed that siderite had strong depressive effect on quartz in flotation using sodium oleate as collector, corn starch as depressant of iron minerals and calcium chloride as activator of quartz at strong alkaline pH. The starch was adsorbed onto calcium carbonate by chemical reaction which was formed by CO32-from siderite dissolution and Ca2+from calcium chloride as activator of quartz and precipitated on the surface of quartz, which resulted in improving the hydrophilic ability of quartz.
登录
查看更多内容
DOI：
--
发表时间：
2013
期刊：
The Chinese Journal of Nonferrous Metals
影响因子：
--
作者：
H. Ying
通讯作者：
H. Ying
影响因子：
--
作者：
Filippov, L. O.;Severov, V. V.;Filippova, I. V.
通讯作者：
Filippova, I. V.
影响因子：
4.8
作者：
R. Lima;P. Brandão;A. Peres
通讯作者：
R. Lima;P. Brandão;A. Peres
影响因子：
4.8
作者：
Pavlovic, S;Brandao, PRG
通讯作者：
Brandao, PRG
DOI：
10.1016/j.ijmst.2013.04.011
发表时间：
2013-03-01
影响因子：
11.8
作者：
Jiang Hao;Liu Guorong;Chen Haochuan
通讯作者：
Chen Haochuan