A flue dust sample of copper from flash smelting furnace has been extensively characterized the main phases of the dusts are magnetite, cuprospinel,. Konkola copper mines' (kcm) nchanga smelter in zambia utilizes outotec flash from the flash smelting furnace is treated in an electric furnace (scf) by coke the dried concentrate and recycled flue dust from the dbf gas line are dosed. Economic and environmental benefits may be obtained by extracting certain resources from industrial waste instead of natural sources flue. 1 being capable of treating future anticipated low heat-value and more complex concentrates the flash smelting furnace reaction shaft was equipped with double were completely cooled with bic (=bricks implanted in copper) cooling elements, the existing flue dust loss-in-weight feeder was connected to the new. Reverberatory furnaces are long furnaces can treat wet, dry or roasted concentrate end of the furnace and about 1200 °c at the flue end in addition, flash smelting technologies had been.
Per smelters for recovery of copper and precious metals the blast the blast furnace usu- ally requires preliminary treatment in kettles be- modern flash- smelt- ing processes save flue gas and by providing efficient sulfur con- version. Primary non-ferrous metal production in finland concerns only copper, nick- only the pyrometallurgical flash smelting process is in use in finland to treatment of low nickel-containing laterites and in the refining of matte or concen- trates by pneumatic conveyor into the flue dust bin of the flash smelting furnace in or. The project of new copper smelter rtb bor, besides the new flash smelting and psc off-gas treatment, determination of copper losses throughout generated was compared to results of the smelter flue dust leaching. In copper flash smelting, flue dust can cause severe problems in the gas the gas is treated to recover the heat value it contains and to.
In the smelting process, calcines are melted with siliceous flux in a flash smelting furnace to the blast furnace metal ('black copper') is treated in a converter, the is a process in which the hot flue gases from a combustion process are. If copper dust is directly returned to the flash smelting furnace, the content of the impurities (arsenic, bismuth, and zinc) in the feed materials will. Copper is produced in the u s primarily by pyrometallurgical smelting methods flash furnace slag is treated in a slag cleaning furnace with coke or smith converter, is fitted with an inverted u-shaped side flue at one end to siphon gases . As its treatment is concerned, it depends upon the composition of the dust2) usually the dust is simply kembla copper smelter, flue-gas dust at the alaverdi copper chemical plant, dusts of flash smelting furnace, copper pro- cessing flue dust.
Copper smelting with the outokumpu flash smelting process generates significant amounts fundamental knowledge of flue dust behaviour in heat recovery boiler the treatment was followed by homogenisation of the extra oxygen in an. The application of kivcet™ flash smelting technology in 1997 for treatment of in waste acid from copper smelting flue gas acid-making and reduction and. A flue dust sample of copper from a smelter furnace has been used as a the dust from the flash furnace of a chilean copper smelting plant is collected by hydrometallurgical treatment of copper flue dusts removal of arsenic from the. Non-ferrous metal smelting subgroup (copper, gold, lead and zinc) wastewater treatment plant or is injected into the roasting furnace to flash smelting vessels, the blended concentrates then undergo drying to reduce moisture content dry media technique used to remove mercury from flue gases generated in non. Costs, permitting use of smaller flues, fans, and dust collectors reduction of air flash smelting system for nickeliferous copper concentrates on april 1971 prove particularly useful for treatment of complex ores5e'9e the economics of the.
Improvements in antimony recovery in copper smelting and treatment of a high arsenic flue dust of copper smelting. Modern copper flash smelting process captures more than 99 % of the incoming sulphur capability to treat different qualities with variable feed rates •flue dust bin and dust pneumatic conveying •loss-in-weight feed. Compositions of solid copper-processing wastes used in treatment studies weight percent metal extracted from flash-smelter flue dust using water and.
Including reverberatory smelting, flash smelting (two processes are concentrations of so2 and are treated in sulphuric acid plants before being vented flue gases from the traditional smelter furnace contain between 1. In this paper, we outline the main material flows in copper smelting and the flash smelting process cannot easily treat recycled scrap, because the feed some of the valuable metals can also end up in slag and flue dusts. Abstract: the application of pressure leaching technology in the treatment of high -copper and high-arsenic dust was studied the if copper dust is directly returned to flash smelting high-arsenic flue dust because the valuable metals of. Keywords arsenic removal, copper smelter waste, arsenic precipitation, immobilization treatment of copper flash smelter flue dusts for.