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the influence of groundwater seepage velocity, groundwater level, soil porosity and soil type on its heat exchange and the temperature distribution of surrounding soil. Taking into account different initial... alternative for the disposal of tailings and it can also enhance ore recovery by the excavation of massive pillars, improve mining conditions by ensuring the stability of underground voids, and minimizing......
that two-mica monzogranite is emplaced in the Cretaceous (118 Ma). Its geochemical features are similar to S-type granite, with enrichment in LREEs and negative Ba, Sr, Zr and Ti anomalies. All the samples... presented above, together with the regional geology, this work provides new insights that Bangong–Nujiang Ocean closed in Early Cretaceous(120-114 Ma). Key words: Tethys ocean; Pamir plateau; S-type granite......
in the experiment. 2.6 Characterization SEM imaging was performed with Sachi S4800 at 5 kV. XRD was conducted on D8 ADVANCE type (Bruker Company, Germany). TGA was carried out using STA449F3 type (NETZSCH Company... Zhi-hui, LIAO Qi. High-resolution analyses reveal structural diversity patterns of microbial communities in chromite ore processing residue (COPR) contaminated soils [J]. Chemosphere, 2017, 183......
- type). The samples were measured in transmission mode using a step of 0.012° and a stepwise dwelling time of 10 s in an angular range of 2θ=20°-120°. The microstructural information was obtained...] CHEN Song, GUO Shu-qiang, JIANG Lan, XU Yu-ling, DING Wei-zhong. Thermodynamic of selective reduction of laterite ore by reducing gases [J]. Transactions of Nonferrous Metals Society of China, 2015......
types and time–space distribution of Mesozoic ore deposits in South China and their geodynamic settings[J]. Mineralium Deposita, 2013, 48(3): 267-294. [3] ZHANG Yu, SHAO Yong-jun, LIU Qing-quan, CHEN...]. Geology, 2007, 35(2): 179-182. [5] ZHU Kong-yang, LI Zheng-xiang, XU Xi-sheng, SIMON A. WILDE. A Mesozoic Andean-type orogenic cycle in South China as recorded by granitoid evolution[J]. American......
Froth feature extraction 2.1 Lead-zinc flotation process description In the mineral separation process of lead-zinc ore, froth flotation is an important process for separating mineral particles. The main... corresponds to the type of working conditions. As mentioned above, we divide the working conditions into 4 categories, so there are four output nodes here. For the core feature extraction, the length......
of a complex sulfidic antimony ore in hydrochloric acid solution [J]. Hydrometallurgy, 2016, 159: 126-131. [6] FERNANDEZ M A, SEGARRA M, ESPIELL F. Selective leaching of arsenic and antimony contained......
provide raw materials for the development of industry, but also cause a lot of environmental problems, such as surface subsidence and a large number of solid wastes [1]. Tailings are by-product from ore...] CAO Shuai, YILMAZ E, SONG Wei-dong. Fiber type effect on strength, toughness and microstructure of early age cemented tailings backfill [J]. Construction and Building Materials, 2019, 223: 44-54. DOI......
solution of niobium tailings by Bayan obo ore[J]. Journal of the Chinese Rare Earth Society, 2019, 37(6): 724-729. [9] 晏慧娟, 唐德胜. 传统工艺生产氧化钽(铌)除杂技术特点及研究进展[J]. 稀有金属与硬质合金, 2016, 44(4): 14-19. YAN Hui-juan... University, 2017. [12] 刘 燕. 新型机械搅拌喷气精炼装置的气泡微细化及分散的研究[D]. 沈阳: 东北大学, 2008. LIU Yan. Bubble disintegration and dispersion in new type mechanical stirring injection refine equipment[D]. Shenyang: Northeastern......
; (1) where W is mass loss; A is exposure area; T is soaking time. 2.5 Cell experiments MG-63 cells (American Type Culture Collection... 5: Tests for in vitro Cytotoxicity [S]. 2009. [25] E Dian-yu. Validation of CFD–DEM model for iron ore reduction at particle level and parametric study [J]. Particuology, 2020, 51: 163-172. DOI......
