基于FameView的浮选液位监控系统的设计和应用

以陕西煎茶岭镍矿选矿厂浮选流程实时监控为例,介绍了如何使用FameView组态软件进行设计及应用效果。     

某地低品位铜铅锌银矿绿色环保选矿试验研究

对青海某地低品位铜铅锌银矿体进行了选矿试验研究。研究结果表明, 采用铜-铅-锌优先浮选方案和无毒(低毒)选矿药剂, 可从含铜0.16%、含铅2.60%、含锌3.84%、含银61 g/t的试样中获得含铜16.37%、铜回收率为49.07%、含银1 231 g/t、银回收率为9.67%的铜精矿, 含铅55.06%、铅回收率为86.81%、含银769 g/t、银回收率为51.69%的铅精矿和含锌46.80%、锌回收率为81.65%、含银206 g/t、银回收率为22.64%的锌精矿, 铜精矿、铅精矿和锌精矿中银的总回收率为84.00%。     

低铝硅比堆积型细泥铝土矿活化浮选脱硅研究

研究了低铝硅比堆积型细泥铝土矿的浮选脱硅, 结果表明: 堆积型铝土矿矿泥量大, 传统处理沉积型铝土矿的药剂制度对低铝硅比堆积型铝土矿分选效果不佳。采用新型活化剂TK, 大幅提高了铝矿物回收率, 成功实现了低铝硅比堆积型铝土矿的浮选脱硅。对于铝硅比为3.23的云南某堆积型铝土矿, 经浮选脱硅, 可以得到铝硅比为9.24、Al₂O₃回收率为69.91%的精矿。     

攀枝花密地选钛厂粗粒钛铁矿回收新工艺研究

分析了攀枝花密地选钛厂现有粗粒钛铁矿回收生产线存在的主要问题, 提出了以“强磁选+浮选”为主体工艺, 采用MOH-2作为浮选捕收剂的新工艺。生产证明该新工艺能有效回收粗粒钛铁矿, 同时能将浮选回收钛铁矿的粒度上限由0.1 mm提高到0.154 mm。     

利用微泡浮选柱分选中低品位铝土矿的试验研究

在研究矿石性质的基础上, 利用新型微泡浮选柱对河南某中低铝硅比铝土矿进行了实验室分选研究, 考察了捕收剂、抑制剂、充气量和淋洗水对分选结果的影响。闭路试验结果表明, 在优化条件下, 采用新型微泡浮选柱可得到精矿铝硅比为10.26, 氧化铝回收率87.24%的实验指标。试验证明新型微泡浮选柱对细粒铝土矿分选有良好的应用前景。     

云南某铅锌多金属矿选矿试验研究

在对云南某铅锌多金属矿进行简单工艺矿物学研究的基础上,按拟定的铜铅混浮-铜铅分离-锌硫混浮-锌硫分离原则流程进行了磨矿细度、药剂种类及用量条件试验,采用1粗1扫2精混浮铜铅、1粗1扫2精铜铅分离、1粗1扫2精混浮锌硫、1粗1扫2精锌硫分离、中矿顺序返回的闭路试验流程处理该矿样,获得了铅品位45.26%、回收率81.33%的铅精矿,锌品位45.97%、回收率88.29%的锌精矿,分选指标理想,但综合回收产品铜精矿和硫精矿的指标有待提高。     

Investigation on the Phase Transformation and Floatability of Sulphidized Cervantite

The surface physicochemical properties of cervantite are similar to the gangue minerals, so it is difficult to achieve the flotation separation of cervantite from them. In order to improve the floatability of cervantite, the phase and floatability changes of cervantite were investigated by the sulphidization roasting with element sulfur in reducing atmosphere and flotation tests. Cervantite did not float while using isoamyl xanthate as collector. But its floatability improved greatly by the sulphidization roasting with element sulfur, and a sulfide layer of Sb₂S₃ is found to be the key component which causes the hydrophobic of sulphidized cervantite. The flotation recovery of sulphidized cervantite increased from 5% to 95% while the molar ratio of S:Sb changed from 0 to 1.5. In other words, the floatability of the sulphidized cervantite increased with the increase of sulfide layer thickness. However, the sulfide layer thickness depended on the additive amount of element sulfur, roasting time and temperature. In the process of sulphidization roasting,element sulfur changed first from solid state to liquid state, then the liquid sulfur reacted with the surface of cervantite, and the stibium phase experienced the following change of Sb₂O₄→Sb₂O₃(O)/Sb₂O₃(C)→Sb₂S₃. In addition, the Sb₂S₃ phase will further react with Sb₂O₄ if there is lack of element sulfur in the sulphidization roasting system.     

Bubble and Froth Stabilizing Agents in Froth Flotation

The mineral processing industry relies heavily on froth flotation to beneficiate complex minerals. The performance of the process depends on a multitude of chemical reagents affecting the solid mineral particles as well as the air bubbles used to collect the valuable mineral particles. In flotation, bubbles and froths are transiently stable by the use of a frothing agent or the presence of inorganic electrolytes in the process water. This review presents the primary stages characterizing bubble coalescence. The effect of flotation reagents and inorganic electrolytes on the stability of bubbles and the mechanisms which delay the coalescence of bubbles are discussed. Recently it had been proposed that solid particles external to the flotation system may be intentionally added to stabilize the froth phase, which has attracted attention from the flotation community. This gave rise to additional studies on the topic. The final section of the paper was therefore designed to capture the progress made on this particular subject. The use of solid flotation aids offers a promising future to increase the recovery of valuable particles as these external particles may be customized. The advantage of solid particles over soluble reagents is that they may be recovered and re-used making them environmentally and economically attractive.     

陕西某微细粒高硫磁铁矿选矿工艺研究

针对陕西某微细粒磁铁矿中部分磁铁矿与极微细脉状脉石矿物互层交互嵌布、含硫高、处理难度大的特点,在工艺矿物学研究的基础上提出了原矿粗碎磁滑轮抛尾—磁选抛尾—磁粗精矿再磨浮选脱硫—浮硫尾矿磁精选联合流程。全流程试验可获得铁品位65.15%、含硫0.11%、铁回收率73.10%的铁精矿,以及硫品位25.12%、硫回收率30.67%的硫精矿。     

锂辉石浮选机理研究现状

论文从锂辉石的晶体结构、浮选溶液中Fe3离子和其它金属阳离子、阴离子等三个方面,系统评述了锂辉石浮选机理的研究进展.认为矿石浮选机理的研究有助于选矿药剂的开发,根据锂辉石的特点开发适宜的浮选药剂,对我国锂资源的综合高效利用具有理论和实际意义.