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of metal oxide/activated carbon catalyst was prepared by sol-gel method for the hydrolysis of carbonyl sulfide (COS). The influences of the calcination temperature, additive content (2.5%-10.0% Fe2O3, mass... that the product of H2S may be absorbed by the interaction with metal compounds and O2 to form sulfate (171.28 eV) and element sulfur (164.44 eV), which lead to catalysts poisoning. Key words: carbonyl sulfide......
, molybdenite belongs to a family of layered transition metal dichalcogenides with closedly packed planes of transition metal atoms(M) sandwiched between two similar planes of chalcogen atoms(X) and has very... Mechanism of mechanical activation for sulfide ores HU Hui-ping(胡慧萍)1, 2, CHEN Qi-yuan(陈启元)1, YIN Zhou-lan(尹周澜)1, HE Yue-hui(贺跃辉)2, HUANG Bai-yun(黄伯云)2 1. Institute of Metallurgical......
Selective removal of heavy metal ions in aqueous solutions by sulfide-selector intercalated layered double hydroxide adsorbentJing Wang1,Liang Zhang1,Tianshu Zhang1,Ting Du1,Tao Li2,Tianli... largely under-appreciated,a majority of metal ion sorbents are limited in their target selectivity.In this work,a 3 D sulfide intercalated NiFe-layered double hydroxide(NFL-S)hierarchical sorbent has been......
a significant effect on metal extraction of pyrrhotite and marmatite bioleaching. The corresponding metal extraction rate decreases with the increase of pulp density. For the polymetallic sulfide ores, zinc...Bioleaching of complex polymetallic sulfide ores by mixed cultureWANG Jun(王军)1, 2, ZHAO Hong-bo(赵红波)1, 2, QIN Wen-qing(覃文庆)1, 2, QIU Guan-zhou(邱冠周)1, 2(1. Key Laboratory of Biohydrometallurgy......
oxidation of element S and metal ions of three sulfide minerals are also observed. 3.6 Mechanism of selective adsorption From the above adsorption behavior of three strains of bacteria on the surface... metal ions. Under the same adsorption conditions, the difference of metal ions on three sulfide mineral surface is the main factor affecting selective adsorption for a strain of bacteria......
, and increased flexibility[16]. The present work reports such a study carried out on zinc sulfide concentrate, with high metal impurities. The process is based on a direct leaching with oxygen of bulk...-dong, XU Ming, JIANG Jun-yang. Study on the leaching of zinc sulfide concentrate by catalyst and oxidation [J]. Non-ferrous Metal (Smelting Part), 2003(5): 21-23. (in Chinese) [7] AKCIL A, CIFTCL H......
J. Cent. South Univ. (2021) 28: 1305-1315 DOI: https://doi.org/10.1007/s11771-021-4698-6 Porous layered La0.6Sr0.4Co0.2Fe0.8O3 perovskite with enhanced catalytic activities for oxygen reduction XU... to synthesize La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) perovskite oxide. The obtained porous layered LSCF has a large specific surface area of 23.74 m2/g, four times higher than that prepared by the traditional......
Effect of mineral processing wastewater on flotation of sulfide minerals CHEN Jian-ming(陈建明)1, 2, LIU Run-qing(刘润清)1, SUN Wei(孙 伟)1, QIU Guan-zhou(邱冠周)1 1. School of Resource... of mineral processing wastewater on sulfide minerals were investigated by flotation, infrared spectrometry and electrochemistry test. The results show that lead-concentrate water can improve the flotation......
Spontaneous combustion tendency of fresh and pre-oxidized sulfide oresYANG Fu-qiang(阳富强)1, WU Chao(吴超)2, LI Zi-jun(李孜军)2(1. College of Environment and Resources, Fuzhou University, Fuzhou 350108, China;2. School of Resources and Safety Engineering, Central South University, Changsha 410083, China)Abstract:Three representative sulfide ore samples were collected from typical metal mines......
components on Staphylococcus aureus investigated by microcalorimetry [J]. Thermochimica Acta, 2008, 476: 33-38. [11] HARNEIT K, GOKSEL A, KOCK D, KLOCK J H, GEHRKE T, SAND W. Adhesion to metal sulfide... Nonferrous Met Soc China, 2006, 16(4): 943-946. [14] TRIBUTSCH H, ROJAS-ChAPANA J A. Metal sulfide semiconductor electrochemical mechanisms induced by bacterial activity [J]. Electrochimica Acta, 2000, 45......