Results 31 to 40 of about 299,164 (314)

Application of gravity separators for enrichment of South Chah-Palang tungsten ore [PDF]

International Journal of Mining and Geo-Engineering, 2016
In the present study, the possibility of concentrating tungsten-copper vein ore in South Chah-Palang was examined using gravity separators including Jig Machine (-2360+600 μm), shaking table (-600+120 μm), and multi-gravity separator (MGS) (-120 μm). The
Hamid Hedayati Sarab-shahrak, Mohammad Noaparast, Sied Ziaedin Shafaei Tonkaboni, Sied Mehdi Hosseini   +3 more
doaj  

Mining-related national systems of innovation in southern Africa: National trajectories and regional integration

, 2016
This paper explores the linkages between the national systems of innovation of Botswana, South Africa, Zambia, and Zimbabwe and their respective mineral extraction and mineral processing value chains, including input industries. Our analysis reveals four
Fessehaie, Judith, Kaziboni, Lauralyn, Rustomjee, Zavareh   +2 more
core   +1 more source

Improved recovery of a low-grade refractory gold ore using flotation–preoxidation–cyanidation methods

International Journal of Mining Science and Technology, 2014
In this work, different flotation–preoxidation–cyanidation methods are considered for treating a low-grade refractory gold ore. On the one hand, the results of selective flotation show that 22% and 31.1% of total Sb and As, respectively, remained in the ...
Soltani Faraz, Darabi Hossna, Badri Rezgar, Zamankhan Piroz   +3 more
doaj   +1 more source

Chemistry Education in Talent Training of Mineral Processing Engineering Disciplines Paper

Creative Education, 2012
In mineral processing engineering disciplines, flotation, as a primary beneficiation method, is performed on the basis of surface chemical properties of minerals and rocks. The surface chemistry of minerals and rocks can be artificially changed to achieve minerals flotation separation.
Shuming Wen, Haiying Shen
openaire   +2 more sources

Chemically specifi C multiscale modeling of clay-polymer nanocomposites reveals intercalation dynamics, tactoid self-assembly and emergent materials properties [PDF]

, 2015
A quantitative description is presented of the dynamical process of polymer intercalation into clay tactoids and the ensuing aggregation of polymerentangled tactoids into larger structures, obtaining various characteristics of these nanocomposites ...
Abraham, Anderson, Bahar, Barthelat, Bitinis, Bockstaller, Borgdorff, Borgdorff, Bousmina, Broughton, Chang, Chen, Chen, Chen, Chen, Chu, Cygan, Cygan, Dauber-Osguthorpe, Dawson, De Virgiliis, El Achaby, El Achaby, Forcier, Fu, Fu, Fu, Geysermans, Ginzburg, Gopal, Greathouse, Greenwell, Groen, Harmandaris, Heinz, Heinz, Heinz, Herrero, Hoekstra, Hussain, Izvekov, Johnston, Johnston, Kalinichev, Karabasov, Kato, Kunz, Liu, Liu, Logg, Manevitch, Meirovitch, Merlet, Monticelli, Okada, Okamoto, Paul, Pfaller, Plimpton, Plimpton, Potts, Rafii-Tabar, Ray, Ray, Ray, Ray, Rissanou, Roux, Rubner, Rycerz, Rüehle, Sapalidis, Scocchi, Sheng, Shih, Sikdar, Sinsawat, Souaille, Srinivas, Suter, Suter, Suter, Suter, Suter, Suter, Teppen, Theodorou, Thyveetil, Thyveetil, Toth, Tozzini, Vaia, Vaia, Wallace, Wang, Wang, Winey, Yeh, Zasada, Zhang   +99 more
core   +2 more sources

Experimental Study on Flotation of a Molybdenum Mine in Inner Mongolia by LKD-3

Kuangchan zonghe liyong
In view of the problems of complex dissemination state, serious argillization and difficult to reduce tailings grade of a molybdenum mine in Inner Mongolia, LKD-3 collector was used to conduct the flotation test.
Ying LI, Hong LIU, Jian WANG, Yiwen MA, Xiaojun JIANG, Qi ZHANG, Bo CUI   +6 more
doaj   +1 more source

General formulas for drag coefficient and settling velocity of sphere based on theoretical law

International Journal of Mining Science and Technology, 2015
The settlement of particles is of great importance in many areas. The accurate determination of drag coefficient and settling velocity in wide Reynolds number (Re) range remains a problem.
Hongli Yang, Minqiang Fan, Airong Liu, Lianping Dong   +3 more
doaj   +1 more source

Rheological investigations of the improved fine scheelite flotation spiked with agitation medium

International Journal of Mining Science and Technology, 2022
The fine scheelite flotation using garnet and glass beads as agitation medium was investigated through slurry rheology and froth property analysis.
Wei Chen, Guofan Zhang, Yangge Zhu
doaj   +1 more source

An adaptive neuro fuzzy inference system to model the uniaxial compressive strength of cemented hydraulic backfill [PDF]

, 2018
Purpose. The purpose of this paper is to develop the models for predicting the uniaxial compressive strength (UCS) of cemented hydraulic backfill (CHB), a widely used technique for filling underground voids created by mining operations as it provides ...
Basarir, H, Bin, H, Elchalakani, M, Fourie, A, Karrech, A   +4 more
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source