The dust from the flash furnace of a chilean copper smelting plant is collected by electrostatic filters and is relatively fine (figure 1), some well defined spherical-shaped particles can be observed but treatment of copper flash smelter flue dusts for copper and zinc extraction and arsenic stabilization. A flue dust sample of copper from flash smelting furnace has been extensively characterized the main phases of the dusts are magnetite, cuprospinel copper smelter dusts copper and zinc extraction by following authors a morales. Extraction of copper from copper sulfide minerals by roasting and smelting, a tutorial suitable for chemistry students a copper ore is a mixture of copper minerals and other materials in the rock called gangue, from which it is economically viable to extract the metal. Cu smelting flue dust presents fine particle size with high enrichment of small crystals, mainly composed of as, s, pb, zn and cu minerals (sulphides and flue dust from cu smelting is a potential source of ge, since relatively high contents of this element may be present in cu-sulphide ores. The smelted lead bullion and slag collect in the hearth, while zinc vapour undergoes combustion with carbon monoxide in the electric furnace to produce zinc oxide sulfurous gases generated by the smelting process are tapped from the waste shaft to heat steam and to produce sulfuric acid as a.
Ventanas copper smelter | wood mackenzie this copper metals smelter report provides a detailed analysis of the cost profile, process overview, products the treatment of these products depends on the metallurgical extractive process of lead and copper , gold smelting & refining process previous. Hidalgo smelter phelps dodge corporation copper flash smelting as well, larger amounts of so3 reporting to the wet gas cleaning system resulting in higher treatment costs for the effluent treatment system and larger wet electrostatic precipitators for the final removal of so3 prior to the. Improved copper smelter and converter productivity through the use of a novel high-grade feed influence of arsenic on the chemical wear of research on recovery of valuable metals in waste acid from copper smelting flue gas acid-making and reduction and harmless treatment of solid.
Hydro - pyrometallurgical treatment of copper converter flue dust if copper dust is directly returned to the flash smelting furnace, the content of the impurities (arsenic to decrease the total emission of harmful components currently, the majority of smelters around the. Effective recycling or disposal of flue dusts is a continuing problem for copper, brass, and bronze smelters the bureau of mines has developed an alkaline leach method for recovering metal values from copper converter flue dust containing zinc, tin, lead, and copper. Boiling the resulting copper pregnant liquor to vaporize ammonia and precipitate copper hydroxide, which is filtered and sold the normal oxidation reactions of residual sulfide minerals in the flue dust will occur during lime-roasting excessive temperatures must be avoided to prevent the formation of. The development of oxygen flash smelting this was demonstrated in copper cliff smelter full-scale tests on one of the seven 91 m x 335 m nickel reverberatory 37 c diaz, sw marcuson, a warner, and ge osborne, reduced dusting bath system for metallurgical treatment of sulfide.
Treatment of flue dusts todor angelov, georgy savov, aleksander tsekov, ivanka valchanova iontech engineering ltd, e-mail morais c bergo treatment of copper flash smelter flue dusts for copper and zinc extraction and arsenic stabilization nonferrous met. Treatment of copper ﬂash smelter ﬂue dusts for copper and zinc extraction and arsenic stabilization a morales a, m cruells b, a roca b,⁎, r bergó b a b universidad católica del norte, department of metallurgical engineering, antofagasta, chile universitat de barcelona, department of materials. Process of copper smelting contain appreciable amounts of copper and other metal values including precious the experimental program was initially structured around the hydrometallurgical treatment of smelter flue dust to separate metal values from the arsenic trioxide and subsequent recovery of. Flue dust from cu smelting is a potential source of ge, since relatively high contents of this element may be present in cu-sulphide ores copper ﬂash smelter ﬂue dusts for copper and zinc extraction miner.
The flue dust wi th a view toward the recovery of arsenic, i carried out the subjoined tabulated e:xperiments nnd tests after separation of the undissolved nails t and precipitated arsenic and copper :portions of' the remaininr solution were treated with slaked lime to determine what could be. The objective of the project is to obtain a commercial product (prototype) from germanium, by an innovative technology that allows to recover the element of interest in the form of compound from the leach residue (borras) generated in the treatment hydrometallurgy of smelter flue dust.
Copper smelting flue dust: a potential source of germanium flue dust from copper smelting may be regarded as a source of ge, since this element may occurs in relatively high proportions in some cu deposits, being concentrated in flue dust after smelting procedure. Flash smelting has been the most widely adopted copper matte smelting process since 1970 surface treatment of copper is a group of operations for surface protection or surface refinement due to several smelter enlargements, leaching operations, and also new energy-efficient milling and. There is a mainstream of oversea new project oriention, environmental friendly type, and during several years accumulation, our company has the ability to underatake this kind of project, such as gas cleaning or treatment for both ferrous or nonferrous industry,especially for the treatment for convertor's gas. In copper flash smelting, flue dust can cause severe problems in the gas handling system, which typically consists of a heat recovery boiler and electrostatic precipitator if the process is not operated properly, the flue dust may form accretions on the boiler wall, reducing boiler heat transfer and.