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Stress distribution rule of roadway affected by overhead mining in gently inclined coal seams groupKANG Qin-rong1, 2, TANG Jian-xin1, 2, HU Hai1, 2, ZHANG Wei-zhong1, 3(1. College of Resource and Environmental Sciences, Chongqing University, Chongqing 400030, China; 2. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400030, China; 3. School......
Alkali desilicated coal fly ash as substitute of bauxite in lime-soda sintering process for aluminum production BAI Guang-hui(白光辉)1, TENG Wei(滕 玮)2, WANG Xiang-gang(王香港)1, QIN Jin-guo... 200433, China; 3. Pingshuo Coal Industry Company, Shuozhou 036006, China Received 6 July 2009; accepted 30 December 2009......
Structure and production fluid flow pattern of post-fracturing high-rank coal reservoir in Southern Qinshui BasinLIU Shi-qi(刘世奇)1, SANG Shu-xun(桑树勋)2, ZHU Qi-peng(朱启朋)2, LIU Hui-hu(刘会虎)3, GAO He... and hydraulic fracture of No.3 coal reservoir in Southern Qinshui Basin. Flow patterns of methane and water in pore-fracture system and hydraulic fracture were discussed by using limit method......
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-elements in coal fly ash by inductively coupled plasma mass spectrometry XIE Hua-lin(谢华林)1,2, TANG You-gen(唐有根)1, LI Yu-jie(李玉杰)1, LI Li-bo(李立波)2 (1. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; 2. Department of Chemistry, Hunan Institute of Technology, Hengyang 421008, China) Abstract: The contents of Cr, Cu, Ni, As, Cd and Pb in coal fly ash......
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A novel fused iron catalyst for ammonia synthesis promoted with rare earth gangue俞秀金,林炳裕,林建新,王榕,魏可镁摘 要:Rare earth gangue, which mainly consists of mixtures... of the catalyst promoted with rare earth gangue was comparable with those of commercial iron catalysts with high amount of cobalt. The role of rare earths was owed to their advantages for favoring......
Analysis of stability of coal pillars with multi-coal seam strip miningZHANG Li-ya, DENG Ka-zhong, ZHU Chuan-guang, XING Zheng-quan(Jiangsu Key Laboratory of Resources and Environmental Information..., the researches on the laws of the geological mining factors to upper and lower pillar’s stability are still deficient in multi-coal seam strip mining at present. Based on the three dimension fast Lagrangian......
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