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Chemistry Department, Bijie University, Bijie 551700, China摘 要:A thermodynamic analysis on the acid leaching process of germanium oxide dust and discussion on the behaviors of main substances of the dust in the leaching process were carried out. The effects of temperature, acid concentration, leaching time and stirring speed on the leaching rate of germanium......
A new adding method of foaming agent used for foam dust suppression in underground coal minesLU Xin-xiao(陆新晓)1, 2, 3, WANG De-ming(王德明)1, 2, 3, ZHU Chao-bing(朱朝炳)1, SHEN Wei(沈威)1, ZHONG Xiao-xing(仲晓... in a heading face of underground coal mines. Field application indicates that the reliable and simple foaming system adopting the new adding method makes a marked dust suppression effect. The working......
Recovering germanium from coal ash by chlorination with ammonium chlorideZHU Guocai, SHI Wenzhong, and TIAN Jun Institute of Nuclear Energy Technology, Tsinghua University, Beijing 102201, China..."><正>A new process of enriching germanium from coal ash was developed. The process involves in mixing the coalash and ammonium chloride and then roasting the mixture to produce germanium chloride......
and Surfaces A-Physicochemical and Engineering Aspects, 1998, 141(1): 131-142. [4] KILAU H W. Wettability of coal and its relevance to the control of dust during coal mining [J]. J of Adhesion Science... coal dust by anionic surfactant added sodium sulfate [J]. Journal of Safety and Environment, 2001, 1(2): 45-49. (in Chinese) [16] WU Chao, ZUO Zhi-xing, OU Jia-cai, ZHOU Bo, LI Zi-jun. Relevance......
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dust controller can obtain a good atomizing effect and achieve well dustfall efficiency for the wetting dust control of coal mine.Key words:wind-spray dust collector; atomization efficiency; collecting...Experimental investigation on atomization and collecting efficiency ofwind-spray dust controller and its parameters optimizationKOU Bao-fu(寇保福)1, LIU Qiu-zu(刘邱祖)1, CAO Shi-chen(曹世宸)2, HU Xiao-he(胡晓禾......
, FONT O, C, QUEROL X, CHIMENOS J, ZEEGERS H. Germanium and gallium extraction from gasification fly ash: Optimisation for up-scaling a recovery process [C]// World of Coal Ash Conference. Lexington, KY...J. Cent. South Univ. (2016) 23: 2214-2222 DOI: 10.1007/s11771-016-3279-6 Germanium separation and purification by leaching and precipitation Saeid Bayat, Sajjad Aghazadeh, Mohammad Noaparast, Mahdi......
of the staff. In recent years, cases of silicosis caused by tunnel dust have gradually increased, even exceeding the number of coal dust diseases [1, 2]. At present stage, the research on dust concentration by domestic and foreign scholars mainly focuses on coal dust in coal mines. The dust control in coal mine mainly adopts spray dust removal and ventilation dust removal. Ventilation and dust......
, 243: 71-79. [3] ZHANG D Q, NI Z M, SUN H W. Direct determination of parts-per-billion levels of germanium in botanical samples and coal fly ash by graphite furnace atomic absorption spectrometry[J...-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......
="ChDivSummary" name="ChDivSummary">The combustion characteristics of blast furnace bag dust(BD) and three kinds of coal-Shenhua(SH) bituminous coal, Pingluo(PL) anthracite, and Yangquan(YQ) anthracite-were...Combustion characteristics and kinetic analysis of co-combustion between bag dust and pulverized coalTao Xu1,Xiao-jun Ning1,Guang-wei Wang1,Wang Liang1,Jian-liang Zhang1,2,Yan-jiang Li1,Hai-yang......