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在pH 8.5的弱碱性介质中实现优先选铜. UV和FTIR光谱结果进一步证实ECTC捕收剂对铜矿物具有优异的捕收能力, 对硫矿物具有好的选择性. 关键词: 乙氧羰基硫代氨基甲酸酯; 硫化铜矿; 弱碱性; 密度泛函; 选择性; 浮选 中图分类号: TQ311; O63 文献标识码: A Separation of chalcopyrite from pyrite at slightly... Corporation Yongping Copper Mine show that the flotation separation of chalcopyrite from pyrite is only achieved above pH 12.5 for butyl xanthate, above pH 10.5 for Z-200 and around pH 8.5......
, Yunnan Province, China were investigated cultured on different substrates including soluble substrate ferrous sulfate and nonsoluble solid substrates S0, pyrite and chalcopyrite. The growth characteristics... sulfides (e.g. a recovery above 90% of copper from chalcopyrite has been achieved by acidophilic thermophile Acidianus brierleyi[8-10]). Nevertheless, compared with the knowledge about the interfacial......
designed. Two of them are termed as the selective self-induced flotation flowsheet of chalcopyrite and the selective Na2S-induced flotation flowsheet of pyrite. The laboratory and pilot plant scale tests......
, 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... by the observed microstructure of leaching residue. In this work, the mineralogical analysis on main sulphides, such as sphalerite, pyrite, pyrrhotite, chalcopyrite, covellite and galena in zinc concentrate under......
and efficiency of copper can be attributed to the galvanic interaction between activated carbon and chalcopyrite. The addition of activated carbon obviously depresses the dissolution of iron... in recovery of low-grade primary copper sulfide ores due to the longer leaching cycle and lower leaching rate. It is well known that chalcopyrite is the main copper mineral in the low-grade primary copper......
of chalcopyrite (mass fraction %) 图2 黄铜矿单矿物的XRD谱 Fig. 2 XRD patterns of chalcopyrite 1.2 实验方法 称取一定量被抑制单矿物置于50 mL烧杯中,加入去离子水20 mL,放入超声波清洗器中分散5 min后静置10 min,倒吸除去上清液,沉下来的矿样移入40 mL有机玻璃挂槽中进行... marmatite 图5 氰化黄铜矿拟合曲线 Fig. 5 Fitted curves for depressed chalcopyrite ......
of chalcopyrite LIN Hai, ZHOU Shanshan, DONG Yingbo, XU Xiaofang (Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines, School of Civil... in the bioleaching system of chalcopyrite and the dissolution kinetics of quartz were researched. The results show that the dissolving rule of Si dissolved from quartz under the action of bacteria and metabolites......
, arsenopyrite, sphalerite, galena and chalcopyrite are disseminated in the ore. Quartz, sericite and dolomite are the main gangue. The optimal grinding fineness should be chosen as 0.037 mm to make sure... are the main forms of tin mineral while the content order of metal sulfides is pyrrhotite > pyrite > arsenopyrite > sphalerite > galena > chalcopyrite. There is also bismuthinite......
for Nationalities, Nanning 530006, China) Abstract: The depression effects of azo organic depressants on galena, jamesonite, marmatite, pyrite and chalcopyrite were investigated by flotation test...选回收率的影响 Fig.5 Effect of dosages of azo reagents on recovery rate of chalcopyrite 时,回收率仍在60%左右；当DB6的用量达200 mg/L时,脆硫锑铅的回收率仍在50%左右；BB1和DB15没有抑制作用.三偶氮类药剂,除了DB95药剂对脆硫锑铅矿没有抑制作用外,DG6,AB234和AB210的抑制作用......
, Shandong province. The results show that the gold-bearing minerals are composed of pyrite, chalcopyrite, gangue, sphalerite and galena. 77.12% of gold minerals are the sulphides and 22.88% are the gangues... of pyrite (Py), chalcopyrite (Cp), sphalerite (Bl) and galena. The gold-bearing gangue is composed of quartz (Q) and feldspar. 77.12% gold grain is in the sulphide mineral and 22.88% is in the gangue......
