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本文通过从炭浆法研究到应用于生产来看炭再生的关键价值,又从炭再生的原理,化学反应和再生目的的来看其必要性,再从炭再生的试验数据和机理来说明其重要性。总之,炭浆厂和堆浸厂对炭再生在理论上的和技术上要加深认识,在生产管理上加强炭再生作业和炭平衡管理,就能够搞好金属平衡,也就能够增产黄金和提高经济效益。 相似文献
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采用炭浆法提金工艺原选矿浸吸率的计算,不能反应生产现场提金过程的浸出和吸附的实际情况,为揭示洋鸡山金矿氧化矿选矿工艺流程中金属平衡误差产生的原因,我们对该工艺 收率计算进行现场考查及研究,提出了新的炭浆法提金工艺理论的检测方法和理论回收率计算法,使洋鸡金山金矿选矿月金属平衡误差同原来的14%缩小到8.3%,基本达到了国家黄金管理局的有关管理要求。 相似文献
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炭浆法提金生产中的统计分析王崇琳,赵越,姜文彬,黄汉铨,周盘(中国科学院金属研究所)(辽宁省彰武县赵家沟金矿)Studyandapplicationofdomesticandoverseasresinsforspecialuseofgoldextra... 相似文献
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正如Elsner反应式所示(1846年),将氰化物与氧加入到炭浆法和炭浸法回路中,从而达到将金从其矿石中浸出。 相似文献
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含金烧渣采用炭浆法提金工艺的研究 总被引:1,自引:0,他引:1
本文主要论述了贵州省丹寨汞矿炼汞后的含金烧渣采用全泥氰化-炭浆法回收黄金铁试验研究。烧渣经氰化浸出后的矿浆采用炭吸附法,金的吸附率可达99.91%。 相似文献
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炭浆法提金工艺中炭损之直接测定 总被引:1,自引:0,他引:1
炭浆法提金工艺中存在着跑炭失金问题,本文研究了原矿和尾矿的碳含量变化,并由此直接得出操作回路中的炭耗。测得结果表明,在正常炭浆法生产中,炭耗值往往超过100g/t指标,而达到120~210g/t,这部分碳仅占矿浆量的万分之几,又磨的较细,其中近半粒度小于325目,人们不易觉察,但随碎炭流失金的数量却相当可观. 相似文献
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论述了碳质难处理金矿中碳质物的组成和矿物特性,碳质金矿预处理工艺和提金方法,并重点评述了水氯化法预处理和次氯酸盐浸出我国某些碳质金矿的试验研究结果。 相似文献
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Studies on the chemical and physical properties, and the reduction behavior (in coal) of hematite iron ores procured from 10 different mines of Orissa, were undertaken to provide information for the iron and steel industries (sponge iron plants in particular). The majority of the iron ores were found to have high iron and low alumina and silica contents. All these iron ores were free from the deleterious elements (S, P, As, Pb, alkalies, etc.). The results indicated lower values of shatter and abrasion indices, and higher values of tumbler index in all the iron ore lumps except Serazuddin (previous) and Khanda Bandha OMC Ltd. For all the fired iron ore pellets, the degree of reduction in coal was more intense in the first 30 min, after which it became small. Slow heating led to higher degree of reduction in fired pellets than rapid heating. All the iron ores exhibited more than a 90% reduction in their fired pellets in 2-h time interval at a temperature of 900°C. Iron ore lumps showed a lower degree of reduction than the corresponding fired pellets. 相似文献
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SYLVIE C. BOUFFARD DAVID G. DIXON 《Mineral Processing and Extractive Metallurgy Review》2013,34(3):159-192
Heap leaching of low-grade refractory sulfidic gold ores has generated much interest during the last decade. Attention has focused primarily on improving gold extraction, with less concern about understanding how the multiple phenomena that are involved determine the overall sulfide oxidation rate. Varying the conventional operating parameters (flow rate, particle size, height) has had little impact on sulfide oxidation beyond the average of 10–15%/month. Variable aeration flow, adequate supply of carbon dioxide, finetuning of temperatures, well-defined particle kinetics, and a careful balance between coarse and fine ore particles may hold the key to successful commercial practice. 相似文献
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机械活化及其在浸出过程中的应用 总被引:13,自引:1,他引:13
陈世琯 《有色金属材料与工程》1998,19(2):91-96
本文简要讨论了机械活化的基本原理及其在有色金属矿物原料浸出过程中的应用。 相似文献