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- The pretreatment of high-sulfur and high-arsenic refractory gold concentrate (RGC) with hydrogen peroxide was studied. 摘要在酸性条件下采用过氧化氢对高硫高砷难选金精矿进行预处理。
- Reasons hard to leach for refractory gold ore are analyzed.Pretreatment by oxidation method can obtain good results. 分析难处理金矿难浸的原因，指出该类金矿浸出前必须进行预先氧化，才能取得理想的浸出效果。
- Arsenic-bearing gold ore is one of the refractory gold ores .Its conventional cyanidation leaching rate is generally very low. 含砷金矿是主要难处理金矿类型之一,该类金矿石常规氰化浸出率一般很低。
- A technology for leaching gold from a refractory gold concentrate using Mesophile preoxidizing-cyanide leaching was presented. 对安徽某难处理金精矿进行了中温菌预氧化氰化浸金试验研究,并与传统焙烧氰化浸金工艺进行了对比。
- The basic principle, character, research and application situation of pretreatment technology of refractory gold ore are summarized in this paper. 综述了难处理金矿石预处理工艺的基本原理、特点和国内外研究与应用状况。
- Heicigou gold deposit is identified as breccia type gold deposit.The ore belongs to typical As and S bearing microgranular refractory gold ore. 肃北县黑刺沟金矿属砾岩型金矿，该矿矿石属典型的含砷、硫微细粒难选金矿石。
- The research results of cyanide leaching of goad using t wo-stage roasting pretreatment for Zhenyuan refractory gold ore were described in this paper. 本文介绍了对镇源难处理金矿采用二步焙烧预处理工艺氰化提金的研究结果。
- Gold can be recovered from refractory gold ore at Xingshuping, north-west by oxide roast-leaching with sulfuric acid+ calcium hypochlorite. 采用氧化焙烧硫酸+次氯酸钙浸出工艺可从西北杏树坪地区的难选冶金矿石中回收金。
- The gold recovery can be increased from 36.5% to 94.3% by pretreating refractory gold concentrates by acidic hot-press oxidation process. 摘要采用酸性热压氧化工艺对某难处理金精矿进行预处理，其金回收率可由常规浸出的35.;6%25提高到94
- Rhas been applied in commercial production for treatment of Cu一Ni一Co sulphide,recovery of PGM, extraction Zn from sulphide concentrate andpre-oxidation of refractory gold ores. 这项技术已经在铜镍钴硫化物的处理，铂族金属回收，硫化锌精矿提取锌及难处理金矿预氧化等方面得到了工业化应用。
- The application status on biohydrometallurgical techniques in the lowgrade copper sulfides,refractory gold ores and other solid mineral resources was reviewed in the paper. 本文总结了国内外生物湿法冶金技术在低品位硫化铜矿、难处理金矿以及其他固体矿产资源中的研究现状,指出了存在的问题,并提出了未来的发展方向。
- The paper introduces the principle,industrial practice and comparison of technical economy to pretreat refractory gold mineral through roasting,pressure and bacterial oxidation. 介绍了难浸金矿用焙烧法、加压氧化法和细菌氧化法预处理的原理、工业实践及几种方法的技术经济比较。
- Focus on the peculiarities of refractory gold ore containing rich arsenic and rich sulphur in Jiangxi gold mines,the paper propose a new method and technology of acidic aqueous chlorination of gold. 针对江西高砷高硫难浸金矿石的特点，提出了酸性水溶液氯化提金的新方法与工艺。
- The possibility of pretreatment of refractory gold ores by alkaline(Lime) hot press oxidation was analyzed by thermodynamics and the dynamic analysis of mechanism in its process was presented. 从热力学角度分析了碱性(石灰)热压氧化预处理难浸金矿的可能性,并对其过程机理进行了动力学分析。
- Recent industrial applications of pretreatment of refractory gold ores and concentrates in the world, including roasting, pressure oxidation and bacterial oxidation have been surveyed in this paper. 介绍了国内外难处理金矿预处理技术工业应用现状，这些预处理技术包括：焙烧、加压氧化及细菌氧化。
- Biometallurgy,roasting and pressure oxidation are generally used to pretreat the refractory gold containing sulfide ores or concentrates.The advantages of biooxidation were presented in the paper. 叙述生物冶金法处理难浸含金硫化矿的优点及所用微生物种类，浸出的机理和方法研究与细菌氧化厂的工业应用。
- The researches and newest progressing in pressure cyanidation method for treating the refractory gold ores, spent auto-catalysts and platinum-group metals ores were reviewed in present paper. 加压氰化过程通过强化反应动力学,可实现难浸金属的高效浸出,在贵金属湿法提取冶金领域是一新兴技术。
- Arsenic-bearing refractory gold Concentrate 难处理含砷金精矿
- refractory gold floatation concentrate 难浸金精矿
- arsenic-beating refractory gold ore 含砷难浸金矿
