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1.
泥旦沟金矿采用堆浸工艺，对低品位矿石进行提金试验。试验矿石品位２．２５ｇ／ｔ，规模４７９５ｔ。金的浸出率６７．７４％，单位矿石利润６６．８元／ｔ，经济临界品位降至１．２３ｇ／ｔ，矿山服务年限得到有效延长。 相似文献
2.
含砷难浸金矿石中金的提取研究 总被引：3，自引：0，他引：3
试验了加入辅助浸金剂高锰酸钾、过氧化钙、过氧化钠或其混合物对含砷难浸金矿石进行氧化,氰化法提金。金的浸出率可达９３．２％,比直接氰化法提金的浸出率提高十余倍。 相似文献
3.
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。通过各种选矿试验,该矿矿石用全泥氰化法金浸出率低于１７％ ,浮选、焙烧氰化法浸出效果也不好,而用细菌预氧化、碱浸预氧化氰化法效果较好,金浸出率最高可达９２．４％ ,是处理该类矿石较有效的选矿方法。 相似文献
4.
生物制剂浸金试验结果表明，生物浸金制剂对氧化型金矿金的浸出率大于９５％，对经过细菌预氧化的难浸金精矿金的浸出度与氰化法相同。 相似文献
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6.
难浸金矿石电场强化电离—氰化提金试验 总被引：1，自引：0，他引：1
对硫、砷、炭（泥）含量较高的难浸金矿石,采用电场强化电离－氰化提金新工艺进行试验,从理论上对方法原理者了讨论,并通过试验对比,证明该方法较规氰化提金方法提高了金浸出率（８％～８０％）,缩短了浸出周期（为原周期的１／４～２／３）。经野外堆浸试验,肯定了方法的可行性。 相似文献
7.
黄铁矿型难浸金精矿细菌预氧化研究 总被引：2，自引：0，他引：2
对黄铁矿型难浸金精矿４４０ｋｇ／ｄ连续细菌预氧化进行了研究。脱硫率为５２．０４％,金氰化浸出率９２．５５％,并对试验的控制参量提出探讨性意见。 相似文献
8.
艾斯卡熔矿测定铜阳极泥中的银 总被引：1，自引：0，他引：1
采用碳酸钠—氧化锌半熔法分解试样,火焰原子吸收光度法测定铜阳极泥中０Ｘｋｇ／ｔ－ＸＸｋｇ／ｔ银,测定结果可满足工业生产原料分析及生产质量控制分析要求。 相似文献
9.
陆丰黄铁矿床的原生矿石中普遍含金，含量０．３ｇ／ｔ以上者产于－１００ｍ标高以上。金在矿石中的赋存状态以次显微金为主。利用浮选－氰化浸出工艺回收这些伴生金是可行的。应特别重视浅部矿石的综合利用。 相似文献
10.
通过对金矿石化学及矿物组成、自然金形态、嵌布粒度、嵌布方式等深入研究,查明了该矿石性质。利用浮选法和氰化法进行可选性试验研究,浮选试验精矿品位为46.86 g/t,回收率达85.14%,氰化试验最高浸出率96.38%。综合分析认为,采用浮选法选矿较合理。 相似文献
11.
Gilles Serge Odin 《Comptes Rendus Geoscience》2002,334(6):409-414
Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414. 相似文献
12.
Emmanuel Skourtsos Daniel Vachard Alexandra Zambetakis-Lekkas Rossana Martini Louisette Zaninetti 《Comptes Rendus Geoscience》2002,334(12):925-931
Some olistolites reworked in a Tertiary flysch of Mount Parnon (Peloponnesus, Greece) exhibit a Late Permian assemblage, dominated by Paradunbarula (Shindella) shindensis, Hemigordiopsis cf. luquensis and Colaniella aff. minima. This association corresponds to the Late Wuchiapingian (=Late Dzhulfian), a substage whose algae and foraminifera are generally little known. Contemporaneous limestones crop out in the middle part of the Episkopi Formation in Hydra, but they are rather commonly reworked in Mesozoic and Cainozoic sequences. The palaeobiogeographical affinities shared by the foraminiferal markers of Greece, southeastern Pamir, and southern China, are very strong (up to the specific level), and are congruent with the Pangea B reconstructions. To cite this article: E. Skourtsos et al., C. R. Geoscience 334 (2002) 925–931. 相似文献
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正20141596 Liu Yunhuan(School of Earth Sciences and Resources,Chang’an University,Xi’an 710054,China);Shao Tiequan Early Cambrian Quadrapyrgites Fossils of Xixiang Boita in Southern Shaanxi Province(Journal of Earth Sciences and Environment,ISSN1672-6561,CN61-1423/P,35(3),2013,p.39-43,3 illus.,20 refs.) 相似文献
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正20141719 Chen Zhijun(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China);Chen Jianguo Automated Batch Mapping Solution for Serial Maps:A Case Study of Exploration Geochemistry Maps(Journal of Geology,ISSN1674-3636,CN32-1796/P,37(3),2013,p.456-464,2 illus.,2 tables,10 refs.) 相似文献
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正20140962 Chen Fenning(Xi’an Institute of Geology and Mineral Resources,Xi’an710054,China);Chen Ruiming Late Miocene-Early Pleistocene Ostracoda Fauna of Gyirong Basin,Southern Tibet(Acta Geologica Sinica,ISSN0001-5717,CN11-1951/P,87(6),2013,p.872-886,6illus.,56refs.) 相似文献
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正1.IGNEOUS PETROLOGY20142008Cai Jinhui(Wuhan Center,China Geological Survey,Wuhan 430205,China);Liu Wei Zircon U-Pb Geochronology and Mineralization Significance of Granodiorites from Fuzichong Pb-Zn Deposit,Guangxi,South China(Geology and Mineral Resources of South China,ISSN1007-3701,CN42-1417/P,29(4),2013,p.271-281,7illus., 相似文献
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正20141205Cheng Weiming(State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China);Xia Yao Regional Hazard Assessment of Disaster Environment for Debris Flows:Taking Jundu Mountain,Beijing as an 相似文献
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正20141266Fan Chaoyan(Guangdong Provincial Key Laboratory of Mineral Resources and Geological Processes,Guangzhou 510275,China);Wang Zhenghai On Error Analysis and Correction Method of Measured Strata Section with Wire Projection Method(Journal of 相似文献
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正20140582 Fang Xisheng(Key Lab.of Marine Sedimentology and Environmental Geology,First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China);Shi Xuefa Mineralogy of Surface Sediment in the Eastern Area off the Ryukyu Islands and Its Geological Significance(Marine Geology Quaternary Geology,ISSN0256-1492,CN37 相似文献
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正20141810 Bian Yumei(Geological Environmental Monitoring Center of Liaoning Province,Shenyang 110032,China);Zhang Jing Zoning Haicheng,Liaoning Province,by GeoHazard Risk and Geo-Hazard Assessment(Journal of Geological Hazards and Environment Preservation,ISSN1006-4362,CN51-1467/P,24(3),2013,p.5-9,2 illus.,tables,refs.) 相似文献