chemistry of copper processing

• 

  (PDF) Matte converting in copper smelting

  20141029 · Abstract Copper, silver, and gold share unique properties that offer numerous application possibilities. For instance, low resistivity and high electromigration resistance make them attractive as interconnect layers in integrated circuits and microelectronic devices, while the optical properties of their nano-scale structures allow …

  view more
• 

  Leaching of Gold with Copper-citrate-thiosulfate Solutions

  2021819 · The addition of copper and citrate in thiosulfate solutions can accelerate gold dissolution rate by about an order of magnitude. For the copper-citrate-thiosulfate system, thiosulfate ion works as the complexing agent for aurous ion, and it is extremely critical to the gold leaching process.

  view more
• 

  Direct-to-blister smelting of copper concentrates: the slag …

  2011111 · Along with actual evolution in the processing equipment, the basic metallurgy has been under careful evaluation and development. In spite of many favourable features of iron silicate slags, they become problematic in the direct-to-blister copper smelting environments, at oxygen partial pressures higher than in matte smelting.

  view more
• 

  Recent Advances in Copper Ore Processing and …

  This work represents the first example of copper-superoxo radical activation in twisted amides which mediates the aerobic oxidative process. Herein, we describe a mild, simple, chemoselective and copper-catalyzed method to synthesize primary amides from readily available and bench stable crystalline solid N-acyl glutarimide.

  view more
• 

  Medium-temperature pressure leaching of copper …

  2007111 · Specific configurations of both processes have been commercially demonstrated at Phelps Dodge’s facility in Bagdad Arizona. This paper reviews in detail the chemistry of medium-temperature pressure leaching of copper concentrates and reports on the process development work conducted by Phelps Dodge and others for this technology.

  view more
• 

  The Chemistry of Copper Electrolysis - Home | Superfund

  2020713 · HANDS-ON ACTIVITY OVERVIEW This experiment demonstrates the process of electrolysis, which is used in the commercial purification of ores such as copper sulfide ore. Electrolysis uses an electrical current to move ions in an electrolyte solution between two electrodes. In copper electrolysis, when a current is applied, positively …

  view more
• 

  Modelling copper smelting – the flash smelting plant, process …

  202061 · Abstract The effectivity of present copper smelting technologies have their roots in industrial and laboratory-scale experience accumulated over the past decades. Since early ‘60s, the tools for improving the processing conditions and smelting vessel design included scale modelling and manual computing of homogeneous multicomponent …

  view more
• 

  In situ synthesis and assembly of copper oxide nanocrystals on copper ...

  Abstract Different dimensional cupric oxide (CuO) nanocrystals and their architectures have been prepared on copper foil via a mild hydrothermal process with the introduction of different types of surfactants. The X-ray powder diffraction (XRD) and energy dispersive X-ray (EDX) patterns indicate that the products are pure CuO and of monoclinic symmetry. …

  view more