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and characterization of mining subsidence in Kaiyang Phosphorus Mine DENG Jian(邓 建)1, BIAN Li(边 利)2 (1. School of Resources and Safety Engineering, Central South University, Changsha 410083, China; 2. School...; Abstract: In Kaiyang Phosphorus Mine, serious environmental and safety problems are caused by large scale mining activities in the past 40 years. These problems......
to the FeO-SiO2-CaO ternary slag system. All additives containing silica, calcium oxide, reductive coal were mixed with the leaching residue containing Bi in a mortar and pestle. The mixture was put into a clay... are 1.5 or 1.0. However, too high melting temperature of the smelting slag is harmful for the smelting process resulting in direct bismuth recovery ratio decreased. When CaO-to-SiO2 mass ratio is 0.35......
Microstructure and Carbides Characteristics of Spray Formed 9V High Vanadium Steels徐轶1,GUO Biao2,GE Changchun1,31. School of Materials Science & Engineering,Southwest Jiaotong University2. School...">To develop advanced high speed steel with high vanadium content,a kind of vanadium content 9% high speed steel in the form of circular ring was spray formed under certain thermal conditions.The carbides......
significantly than NaOH and Na2CO3 on the high SiO2 concentration in the solution after the reaction of calcium silicate hydrates with aluminate solution. REFERENCES [1]Garrault-Gauffinet S, Nonat...Article ID: 1003-6326(2005)05-1145-05 Behavior of calcium silicate hydrate in aluminate solution LI Xiao-bin(李小斌), ZHAO Zhuo(赵 卓), LIU Gui-hua(刘桂华), ZHOU Qiu-sheng(周秋生), PENG Zhi-hong(彭志宏......
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Cleaning of high antimony smelting slag from an oxygen-enriched bottom-blown by direct reductionHong-Lin Luo,Wei Liu,Wen-Qing Qin,Yong-Xing Zheng,Kang YangSchool of Minerals Processing and Bioengineering,Central South University摘 要:Cleaning of high antimony smelting slag from an oxygen-enriched bottom-blown was tested by direct reduction in a laboratory......
Influence of Lanthanum on Phosphorus Uptake and Its Chemical Fractions in Rice Crop (Oryza Sativa) 朱建国1,曾青1,曹志洪1,张雅丽1,谢祖彬1,褚海燕1 (1.Laboratory of Material Cycling in Pedosphere, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China) Abstract:The effects of lanthanum on rice growth, phosphorus uptake and phosphorus chemical fractions in rice were studied with split-root......
Recovery of titania from high titanium slag by roasting method using concentrated sulfuric acidLi-Li Sui1,2,Yu-Chun Zhai2,Li-Hua Miao11. Department of Chemistry, Shenyang Medical College2. School...,the phase structure characteristics of high titanium slag were analyzed.Through the single factor and the orthogonal experiment methods,the effects of material particle size,mass ratio of acid to ore......
Influence of phosphorus on oxidation behavior oflow thermal expansion superalloy IN909 at 650 ℃ SUN Ya-ru(孙雅茹)1, 2, SUN Wen-ru(孙文儒)2, HOU Gui-chen(侯桂臣)2, GUO Shou-ren(郭守仁)2, LIU Zheng (刘 正)1, HU.... Korea Institute of Machinery and Materials 66, Sangnam-dong, Changwan 641-010, S. Korea Received 28 July 2006; accepted 15 September 2006 Abstract: The effect of phosphorus on the oxidation......
to cement and concrete as mineral admixtures [11]. When super fine steel slag powder is mixed with concrete as an active admixture, concrete properties will be improved greatly so as to produce high..., steel slag concrete has lower strength at early age. Therefore, steel slag should be used to control hydration process so that concrete with high strength and good performance can be obtained. 4......
