1) rich-oxygen leaching
富氧浸出
1.
In order to solve the problem that the leaching recovery of gold is always a bit low in the Geerke gold mineral processing plant, Maqu, Gansu province, CIL experiment and its optimization experiment, rich-oxygen leaching experiment were conducted on the site.
为解决甘肃玛曲格尔柯金矿选矿厂金浸出率指标一直偏低的问题,在生产现场完成了全泥炭浸正交试验、最优化条件试验和富氧浸出试验,确认了磨矿细度偏低是影响生产指标的主要原因。
2.
The test introuduced mechanism of rich-oxygen leaching and application in Sifang Gold Mine.
介绍了富氧浸出的作用机理及在四方金矿的应用情况。
3.
Combination with the process of lead zinc sulfide minerals\' rich-oxygen leaching,the values of G~0 and the reactions\'ψ-pH formulas of PbS-H_2O system and ZnS-H_2O system were obtained based on thermodynamic calculation respectively,and theψ-pH figures of PbS-H_2O system,ZnS-H_2O system,and PbS-ZnS-H_2O system were drawn when temperature was 160℃,oxygen partial pressure was 1.
结合铅锌硫化矿富氧浸出过程,进行热力学计算,分别得到了PbS-H_2O系、ZnS-H_2O系各物质的G~0值以及该体系下各反应对应的电位-pH表达式,并绘制出温度为160℃、氧分压为1。
2) Oxygen rich leaching
富氧浸出
1.
Countering this problem,the commercial scale trail of oxygen rich leaching of peroxyl was carried out.
针对这个问题,进行了过氧化氢富氧浸出工业试验。
2.
The oxygen rich leaching,that is to say,the leaching system is aerated with oxygen rich gas which is produeed by oxygen making method of variable pressure adsorption,is capable of reducing specific value of CN -/O 2 from over 23 to the approach to 6,thus enhancing gold dissolving rate.
氰化浸出理论研究表明[CN-]/[O2]=6时,金溶解速度最快,用变压吸附制氧法生产富氧气体充入浸出系统实施富氧浸出,可使该比值自23以上趋近于6,从而提高金的溶解速度。
3) normal pressure and oxygen-rich leaching
常压富氧浸出
1.
The normal pressure and oxygen-rich leaching process of sphalerite concentrate is investigated under the simulation condition in reactor.
在反应釜模拟常压富氧浸出条件,研究锌精矿常压富氧浸出过程。
4) CIL with rich oxygen
富氧炭浸
5) bioleaching
氧化浸出
1.
The leaching performance of the low grade molybdenite from Jinduicheng Mine is investigated by both bioleaching and chemical oxidation leaching process.
结果表明,酸性(硫酸)介质下的细菌氧化浸出和化学氧化浸出,钼易与一些金属离子(如Fe,Ca,Al)生成不溶性的化合物,钼浸出率很低。
6) oxidation leaching
氧化浸出
1.
Study on coupling of oxidation leaching and separation of coordinated extraction for sphalerite;
闪锌矿氧化浸出与协同萃取分离耦合研究
2.
A mathematic model for oxidation leaching of sulphide ore was developed.
建立了常压预浸合金硫化镍矿的氧化浸出数学模型,并进行了验证试验。
3.
The oxidation leaching method to recover platinum in waste catalyst with hydrogen peroxide in hydrochloric acid media was studied.
采用盐酸介质中氯酸钠氧化浸出法对合成有机硅时产生的含铂废料进行分离,对浸出过程的浸出温度、浸出时间、浸出用氯酸钠浓度、液固比等因素进行了单因子实验和正交试验。
补充资料:硫化锌精矿氧压浸出
硫化锌精矿氧压浸出
oxidative pressure leaching of zinc sulphide concentrate
机过滤;得到含元素硫”%的精制硫磺。 硫化锌精矿氧压浸出的锌浸出率可达到98%以上。硫转换为元素硫的转换率与精矿中黄铁矿含量有关,黄铁矿含量低,有利于硫的转换和回收。加拿大特雷尔厂的硫转换率达到95%。 设备硫化锌精矿氧压漫出的主体设备是卧式压煮器,压煮容用隔堵分为几个室,各室都装有搅拌器。压煮器外壳为由碳钢焊接而成,内衬铅板、保温砖和耐酸砖。1 iuhuaxinJ旧gkuang yangya Jinehu硫化锌精矿氧压浸出(oxidative pressureleaehing of zine sulphide eoneentrate)往压煮器内通入氧气,并用稀硫酸使硫化锌精矿中的锌和硫分别转变成水溶性硫酸锌及元素硫的锌浸出方法。元素硫较传统炼锌厂产出的浓硫酸更便于贮存、运输和装卸。此外,设备占地面积小、基建投资省和对环境污染程度轻也是此法的优点。但硫化锌精矿氧压浸出法不适宜用来直接处理含氟、氯高和含黄铁矿高的硫化锌精矿。 1977年加拿大谢利特哥顿(Sherritt Gordon)矿业有限公司和科明科(Cominco)矿业有限公司联合进行硫化锌精矿氧压浸出试验。1981年世界上第一套硫化锌精矿氧压浸出工业装置在科明科公司所属的特雷尔(Trail)厂投产,1 983年第二套工业装置在加拿大奇德克里克(Kidd Creek)矿业有限公司电锌厂投产。 原理硫化锌氧压浸出的基本反应: __.___~Ll~~~~.~。.,,~ ZnS+HZSO‘+言02一ZnSO‘+S”+H“O在浸出过程中,这种反应进行得很慢,需要有溶解的铁来促进氧的传递以加速其进行: ZnS+FeZ(504)3—ZnSO、+ZFeSO;+50 ___~「__~~.1~一,。~、,二。 ZFeSO、+HZSO4+言02一FeZ(504)3+HZO溶液中的铁主要来源于硫化锌精矿中的磁黄铁矿和铁闪锌矿在浸出过程中生成的可溶性FeSO4: F·s+HZsO4+合02一·504+HZO+S。 浸出过程中,方铅矿(PbS)、黄铜矿(CuFeSZ)等也被氧化生成相应的硫酸盐进入浸出液: Pbs+HZso4+粤。,一bso;+S。+H:o -一’一‘一一”’2一“--一”’一 CuFeS:+O:+ZHZSO4— CuSO;+FeSO4+250+ZHZO eds+HZsO·+合02一dSO4+S。+HZO黄铁矿(FeS:)在强氧化条件下氧化成硫酸: ZFeS:+7.50:+HZO—FeZ(50、)3+HoSO4 浸出反应释放出的热量,为过程本身提供了所需的热源。浸出过程中需加入表面活性剂,以消除生成的元素硫对矿物表面的包裹,使浸出反应能进行完全。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条