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Abstract: ZnSe/SiO2 composite thin films was prepared by sol-gel method. XRD results indicate the phase structure of ZnSe particles embedded in ZnSe/SiO2 composite thin films is sphalerite (cubic... at 487 nm (2.5 eV) is excited at 395 nm corresponds to the band-to-band emission of sphalerite ZnSe crystal(2.58 eV). The strength free exciton emission and other emission peaks correlating to ZnSe......
treatment, the KCN-etched film had a sphalerite structure with (112) preferred orientation. Meanwhile, the crystalline quality of the CIS film was significantly improved, which provided a novel method......
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, the dissolution of sphalerite, chalcopyrite, covellite and galena is assumed to follow the indirect oxidation reactions, where the acidic dissolution takes place firstly and then the released H2S transfers... reactions during the ADL process of sphalerite [11]. The slowing-down of the leaching rate of sphalerite with the increase of retention time is mostly regarded as the result of the encapsulation of elemental......
performance to chalcopyrite, pyrite or sphalerite, and its adsorption mechanisms on the three sulfide mineral surfaces were investigated. The results show that BOPECTU reacts chemically with Cu2+ through... and the recommended pH values for chalcopyrite flotation are 6.0-10.0, while BOPECTU exhibits weak selectivity for pyrite and sphalerite. The results of IR spectra demonstrate that BOPECTU adsorbs......
Trans. Nonferrous Met. Soc. China 25(2015) 2388-2397 Adsorption mechanism of 2-mercaptobenzothiazole on chalcopyrite and sphalerite surfaces: Ab initio and spectroscopy studies Fen JIAO, Wen-qing QIN... mechanism of the collector, 2-mercaptobenzothiazole (MBT), with chalcopyrite and sphalerite surfaces were investigated by Fourier transform infrared (FTIR) and density functional theory. Results of FTIR......
of the gold-bearing minerals. Major gold-bearing minerals include gold, electrum, pyrite and sphalerite. The "invisible gold" mainly exists in the form of mechanically-mixed "invisible" microscopic...% to 80.120%. The mass fraction ratio of w(Zn)/w(Cd) of sphalerite ranges from 79.82 to 145.33, indicating that the deposit is formed in an epithermal moderate-low temperature environment. Major and trace......
minerals. The results also show that Na2CO3 and YZN used together as combined depressants for sphalerite can signally improve the depressing effect of new reagent YZN on sphalerite. Key words: lead... with minerals were also studied. 2 Experimental 2.1 Materials The valuable minerals in the lead-zinc-silver ore sample are galena, sphalerite and silver-containing minerals. The gangue minerals......
surface, and the adsorption amount of DEOECTU on chalcopyrite surfaces is further greater than on pyrite, sphalerite or galena surfaces. The flotation results of pure minerals were further confirmed that DEOECTU exhibits superior collecting power to chalcopyrite and good selectivity against pyrite, sphalerite and galena.Key words:diethoxycarbonybis(thiourea), synthesis; metal ion; adsorption; flotation......
sphalerite and quartz from Yinshan deposit, Dexing, northeast Jiangxi Province[J]. Acta Petrologica Sinica, 2011, 27(5): 1387-1396. [6] 韩润生, 李 波, 倪 培, 邱文龙, 王旭东, 王天刚. 闪锌矿流体包裹体显微红外测温及其矿床成因意义-以云南会泽超大型富锗银铅锌矿床为例[J]. 吉林大学学报(地球科学版), 2016, 46(1): 91-104. HAN Run-sheng, LI Bo, NI Pei, QIU Wen-long, WANG Xu-dong, WANG Tian-gang. Infrared micro-thermometry of fluid inclusions in sphalerite in and geological......