Equilibrium and mechanism studies of gold(Ⅰ)extraction from alkaline aurocyanide solution by using f

来源 :稀有金属:英文版 | 被引量 : 0次 | 上传用户:lmwtz0x8u0
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Solvent extraction based on ionic liquids is generally considered to be an environmentally benign and effective technology for gold(Ⅰ)recovery.The aim of this work is to study gold(Ⅰ)extraction from aurocyanide solution using fluorine-free ionic liquids[A
其他文献
工业机器人受机械本体间隙误差及外界干扰,在进行焊接、喷涂等工作时难以精确跟踪期望轨迹,严重影响工作效率和质量。根据视觉反馈控制原理,提出一种基于视觉反馈的末端位置动态补偿方法,设计视觉及末端执行器补偿机构,通过高速相机检测机械臂末端与期望轨迹的图像位置偏差,利用末端执行器进行位置补偿,可以快速高精度跟踪期望轨迹。通过实验对提出的方法进行验证,结果表明即使有外界干扰的情况下,机器人末端的跟踪误差最大为1.45 mm,显著提高了轨迹跟踪精度和跟踪速度,满足工业机器人末端快速、高精度的轨迹跟踪工况要求。
High ferrotitanium is used as a deoxidizer and alloying agent in steelmaking processes and is mainly produced using high-cost remelting processes.The thermite method is a simple and low-cost method for preparing low ferrotitanium.However,the high levels o
船机系统发生故障可以通过油液体现,金属颗粒是油液中最重要的污染源。金属颗粒的定性、定量分析,是实现精准故障预测与诊断的关键环节。文中基于电感传感器检测方法,利用麦克斯韦方程组建立微电感线圈检测非铁磁性金属颗粒的时谐场边值理论模型,用分离变量法得到金属颗粒的散射场解析解,进而明确非铁磁性金属颗粒流经时线圈的电感变化解析式,再结合实验,从而实现不同材质非铁磁金属颗粒的区分检测。
Spherical Gd2Zr2O7 hollow powders with a mean size of 8.8 μm were fabricated as feedstock for thermal barrier coatings (TBCs) by spray-drying.The sin-gle-ceram
Graphene has attained a considerable amount of popularity as an attractive ultra-thin reinforcement for nickel (Ni) matrix composites in recent years.However,it
The microstructures,mechanical properties and fracture behaviors of a new WE43 alloy(Mg-4 Y-1.6 Nd-2 Sm-0.5 Zr)were investigated.The microstructure of the as-cast alloy includes a Mg matrix,Mg41Sm5,Mg41Nd5and Mg
针对在小型无人机飞行过程中,机载光电成像探测器因抖动产生的图像虚影、视轴偏移的问题。在传统单处理器控制的基础上,设计了双处理器共同控制的两轴云台稳像控制系统,该系统通过四元数姿态解算法、模糊PID控制器和三阶Hermite插值降速曲线完成系统软件设计,实现云台自稳定和运动控制。同时,分析了该系统的组成及工作原理,给出了该系统控制电路中重要芯片的选型及电路设计。实验结果表明,在±5°、2 Hz扰动条
Magnesium alloys exhibit significant potential for use in next-generation biodegradable materials.Implanted magnesium alloys are expected to exhibit good wear resistance.In this work,the effects of rare earth metal Sc on the wear resistance of biodegradab
Microstructure evolution and properties of a Cu-Cr-Ag alloy during the continuous manufacturing process were investigated in detail by scanning electron microscopy(SEM)and transmission electron microscopy(TEM)in the study.The Cu-Cr-Ag alloy rod with unifo
Al-Cu-Li alloy is a huge potential alloy for aerospace industry due to its low density and excellent comprehensive performances.In this study,the microstructures and mechanical properties of a novel cast Al-Cu-Li alloy during the heat treatment were inves