Arsenic is present in all copper, lead, and zinc sulfide ores and is carried along with those metals in the mining, milling and concentrating process. Separation, final concentration and refining of by-product arsenic as the trioxide is achieved at smelters. Arsenic is the essential consistent element of many compounds important and widely used in agriculture and wood preservation. Lesser amoun...

The origin of photoluminescence in copper indium sulfide (CIS) quantum dots (Qdots) has previously been ascribed to a donor– acceptor pair (DAP) recombination, with a crystal lattice defect implicated as the origin of the donor state. In this study, electron energy-loss spectroscopy (EELS) was used to observe defect-rich compositional domains within individual CIS Qdots, supporting a model of d...

We demonstrate here the utilization of ultrasonication during template-assisted electrodeposition to synthesize high quality one-dimensional nanostructures. Copper sulfide nanorods were synthesized “sonoelectrochemically” to achieve single-crystal nanorods with predominantly single stoichiometric composition (1.0:1.0 Cu:S). Structural characterization by HRTEM, SAD, EDS reveals that nanorods ha...

The crystal structure of the mineral lautite (copper arsenic sulfide), CuAsS, previously described as either centrosymmetric [Pnma; Marumo & Nowacki (1964 ▶). Schweiz. Miner. Petro. Mitt.44, 439-454] or noncentrosymmetric [Pna2(1); Craig & Stephenson (1965 ▶). Acta Cryst.19, 543-547], was reinvestigated by means of single-crystal X-ray diffraction. The centrosymmetric structural model reported ...

introduction one of the first principles in the formation of a reserve is mineralogical, construction and mineral textures studies and investigation of paragenetic relations in the ore minerals. in addition, to petrographic studies, isotopic investigates have wide applications in economic geology. in general, copper isotope variability in primary (high temperature) mineralization forms a tight ...

At present, copper smelting slag is not effectively recycled and wasted. Copper contains FexO at more than 40 mass%. For the utilization of as a Fe resource, it necessary to separate Cu in slag. recycling from slag, FeS-based matte can be introduced use sulfurization concentrate into sulfide finally recover copper. In previous paper, kinetic model was developed simulate coupled reactions betwee...