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At. thiooxidans菌进行多次传代驯化,最后得到适应在10%的矿浆浓度下生长良好的菌种.培养条件为在恒温培养振荡器(上海智城ZHWY-2102型)中,30℃,180 r/min振荡培养. 表1 几种矿物化学元素分析结果 Table 1 Chemical analysis of several copper sulfide ores 1.2 实验方法...密集. 图2 At. thiooxidans细胞在低品位黄铜矿被污染前后的吸附率 Fig. 2 Adsorption ratio of At. thiooxidans on uncontaminated/ contaminated low-grade chalcopyrite ores 2.3 受污染黄铜矿的生物浸出特征 被萃取有机物污染的低品位黄铜矿,与清洁......
New influence factor inducing difficulty in selective flotation separation of Cu–Zn mixed sulfide mineralsJiu-shuai Deng,Ying-bo Mao,Shu-ming Wen,Jian Liu,Yong-jun Xian,Qi-cheng FengState Key... because of the complex surface and interface interaction mechanisms in the flotation solution. Undesired activation occurs between copper ions and the sphalerite surfaces. In addition to recycled water......
from copper, lead-zinc and arsenopyrite-bearing sulfide ores and tailings were established in the presence of Acidithiobacillus group of bacteria. Sulphate Reducing Bacteria(SRB) isolated from... and surface water streams in the vicinity. Major acid-producing mining operations are essentially confined to sulfide-bearing metalliferrous ores such as those of copper, lead-zinc, uranium, gold, coal......
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Effect of sample diameter on primary dendrite spacing of directionally solidified Al-4%Cu alloy QU Min(屈 敏), LIU Lin(刘 林), TANG Feng-tao(唐峰涛), ZHANG Jun(张 军), FU Heng-zhi(傅恒志) State Key...; Abstract: The relationship between primary dendrite arm spacing and sample diameter was studied during directional solidification for Al-4%Cu (mass fraction) alloy. It is shown......
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, WANG Yi-fan, GAO Jun, ZHANG Zhi-en, LIU Zhi-qiang, OLABI A G. Performance analysis of a novel cascade absorption refrigeration for low-grade waste heat recovery [J]. ACS Sustainable Chemistry &.../transcritical CO2 process for low-grade waste heat recovery [J]. Energy Conversion and Management, 2019, 192: 232-242. DOI: 10.1016/j.enconman.2019.04.045. [3] LI Yu-qiang, TANG Wei, CHEN Yong, LIU Jiang-wei......
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Oxidation and Electrochemical Behavior of MonolayerGraphene-Coated Copper in Simulated Primary WaterHong-Liang Ming,Si-Yan Wang,Zhi-Ming Zhang,Jian-Qiu Wang,En-Hou Han,Wei KeKey Laboratory of Nuclear... copper,suggesting that the monolayer graphene can effectively protect the copper from oxidation and corrosion in the simulated primary water of pressurized water reactors.关键词:......
recovery because of a synergistic effect between PAX and Na2S. Key words: pyrite; chalcocite; flotation; cyanide; depression; sodium sulfide 1 Introduction Gold generally exists in most copper-gold ores... to a saleable copper-gold concentrate with pyrite to be depressed, and then the depressed pyrite is activated and floated to recover the associated gold [1,2]. Chalcopyrite and chalcocite widely exist as primary......
