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; 文献标志码:A 文章编号:1672-7207(2011)05-1220-06 Effects of sodium carbonate and sodium chloride additives on alkaline fusion of coal fly ash YAO... was subjected to alkaline fusion treatment using sodium carbonate and sodium chloride as additives. Effects of various amounts of additives, alkaline fusion temperatures and time on products were......
J. Cent. South Univ. (2018) 25: 2971-2978 DOI: https://doi.org/10.1007/s11771-018-3967-5 Improving collecting performance of sodium oleate using a polyoxyethylene ether in scheelite flotation CHEN... to improve the scheelite flotation with sodium oleate (NaOL), the effect of a non-ionic polyoxyethylene ether (JFC-5) on the floatability of scheelite was investigated through flotation experiments at 10......
行X射线衍射分析,结果如图4所示.比较发现,Na2SO4的加入对焙烧矿的矿物组成有明显的影响. 图4 不同Na2SO4用量焙烧矿的XRD谱 Fig. 4 XRD patterns of roasted ores with different sodium sulfate dosage 不加Na2SO4时,部分铁矿物被还原成金属铁,与还原出来的镍生成了镍含量较低的铁纹石,此乃该条件下镍铁...Na2SO4用量小于10%的情况.鉴于此,本实验中扩大Na2SO4用量范围从0%到20%,旨在系统研究Na2SO4用量对高铁低镍型红土镍矿还原焙烧选择性效果的影响,结果见图3. 从图3可以看出,Na2SO4对焙烧过程选择性效果的影响非常显著. 图3 Na2SO4用量对试样还原焙烧的影响 Fig. 3 Effect of sodium sulfate dosage on ore......
. [4] 邓友生, 周成林. 硫酸钠溶液的盐胀与冻胀[J]. 冰川冻土, 2009, 31(5): 920-924. DENG Yousheng, ZHOU Chenglin. Salt expansion and frost heave of sodium sulphate solution[J]. Journal of Glaciology and Geocryology, 2009, 31...:A 文章编号:1672-7207(2015)01-0248-07 Model test research on salt expansion of partition above and channelize below sulfuric acid saline soil roadbed CHEN Zai1......
Trans. Nonferrous Met. Soc. China 29(2019) 634-640 Leaching kinetics of scheelite concentrate with sodium hydroxide in the presence of phosphate Ting-ting LI, Yan-bai SHEN, Si-kai ZHAO, Yao-yu YIN... kinetics for the leaching of low-grade scheelite concentrate was investigated in an autoclave with sodium hydroxide in the presence of phosphate. The effects of stirring speed (300-600 r/min......
Leaching kinetics of molybdenum from Ni-Mo ore in sulfuric acid solution with sodium peroxodisulfate as oxidantLIU Zhi-xiong(刘志雄)1, YIN Zhou-lan(尹周澜)2, CHEN Yi-guang(陈义光)3, XIONG Li-zhi(熊利芝)3(1.... College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China)Abstract:The leaching kinetics of molybdenum from Ni-Mo ore in sulfuric acid solution with sodium......
alloy by molten salt electrolysis technique. 2 Experimental In this work, sodium fluoride, calcium fluoride, alumina and zirconia were of analytical grade. All reagents were dried at 400 °C.... The results show that the electrical conductivity of NaF-AlF3-3%Al2O3-3%CaF2-ZrO2 molten salt system decreases with increase of ZrO2 content in an interval of 0-5%. The increase of 1% ZrO2 results......
Effects of laser heat treatment on salt spray corrosion of1Cr5Mo heat resistant steel welding jointsKONG De-jun(孔德军)1, 2, GUO Wei(郭卫)1(1. College of Mechanical Engineering, Changzhou University... joint was processed with CO2 laser, and the corrosion behaviors before and after laser heat treatment (LHT) were investigated in the salt spray corrosion environments. The microstructures, phases......
soluble molybdate by sodium hydroxide LI Fei, CHEN Xing-yu, HE Li-hua, WU Jin-ling (School of Metallurgy and Environment, Central South University, Changsha 410083, China) Abstract: When molybdnite was roasted, MoS2 converts to MoO3. Meanwhile, sulfides associated with concentrate are oxidized to copper oxide and lead oxide and iron oxide or partial copper sulfate and lead sulfate and iron sulfate......
