Outokumpu process, 188 nickel sulfide ores hydrometallurgical processing routes, 307 nickel sulfide roasting fluidized bed reactor, 70 niobium processing route, 322 noranda continuous converter, 199 noranda process copper matte secondary converting, 199 noranda smelting process, 196 noranda smelting reactor, 196 norsk hydro process.
Direct outokumpu nickel flash smelting process sol.1995 the direct outokumpu nickel process don paatela e outokumpu flash smelting process received asm historical landmark award helsinki 2002 nickel mineral processing nickel ore dressing nickel ore crusher flotation separation of copper and nickel ore has the four basic processes use.
Figure 1 schematic of flash smelting furnace.The flash smelting process has long been a target for cfd modelling and published research can be found in the very first of the csiro series of conferences on cfd in the minerals and process industries koh et al 1997, ahokainen et al 1997.Utalo et al 1998a,b provided.
A copper flash smelting process in which part of a sulfidic copper feed is roasted in the presence of a calcareous so 2 scavenger to produce a calcine containing calcium sulfate and an oxidic copper product, the calcine is mixed with additional feed and the mixture is flash smelted to provide a metallic product and a calcareous slag.
This technology is being phased out in favor of more energyefficient flash furnaces and other smelting furnaces, such as the outokumpu process in europe flash furnace, as in the kghm gogow ii smelter, presented as technology b that made up 70 of production by 1994.
Smelting furnaces by dr.Bharati rehani metallurgical and materials engg.University of baroda.
The kalgoorlie nickel smelter, 20 kilometres south of kalgoorlie, is fully owned by bhp billiton nickel west.The smelter that comprises an acid plant, three large converters and a large flash furnace commenced nickel smelting in 1972 under the ownership of western mining corporation wmc.
The novel flash ironmaking process, conceived by sohn 52 at the university of utah, is based on the gaseous reduction of iron oxide concentrates in a flash reactor.It takes advantage of the large specific area of fine particles of iron ore concentrate, much like the flash smelting of copper or nickel sulfide concentrate.Although there are.
Experience of the direct outokumpu nickel don smelting process gained over the first ten years of operation is reviewed, including the significant environmental impacts.In 1995, production capacity at harjavalta was increased from 17 000 to 52 000 tyear, by introducing don technology, additional refinery capacity being based on hydrogen.
A thermodynamic model has been developed to predict the distribution behavior of ni, cu, co, fe, s, as, sb, and bi in the outokumpu flash-smelting process, the outokumpu direct high-grade matte smelting process, and the inco flash-smelting process.In this model, as many as 16 elements ni, cu, co, fe, as, sb, bi, s, o, al, ca, mg, si, n, c, and h are considered, and two nickel sulfide.
Abstractoxygen-activity measurements and sampling for chemical assay were carried out in a nickel flash smelting furnace and slag-cleaning electric furnace during industrial operation.In the primary direct outokumpu nickel don smelting furnace, which produces high-grade nickel matte, the oxygen activity and chemical compositions of the slag and matte were quite uniform throughout the.
The role of oxygen in the outokumpu flash smelting process y.Asteljoki and p.Hanniala outokumpu oy, engineering division, p.Box 86, 02210 espoo, finland outokumpu oy, metallurgical research center, p.Box 60, 28101 pori, finland abstract the use of oxygen in the outokumpu flash smelting furnace since 1971 has been one of the most significant.
Outotec flash smelting process the outotec direct nickel flash smelting process was first implemented at harjavalta smelter in finland.Simultaneously with the adoption of the new process, the nickel production was doubled.The entire target of the project was to improve the profitability, cut sulphur dioxide emissions, improve the.
An innovative process koniambo nickel.Smelting occurs in an electric furnace heated to 1600 degrees, and ferronickel is periodically tapped into ladles.As for the slag, it is tapped continually at 1600c into 30 m 3 slag pots and hauled to the slag disposal area.Fresh water in a closed-circuit system cools some parts of the furnace.
Mar 06, 2013 1995 the direct outokumpu nickel process don.Outokumpu flash smelting process received asm historical landmark award.Posts related to direct outokumpu nickel flash smelting process.Climatetechwiki in the case of iron ore smelting the off-gas from the.The liquid iron cost.
Only the pyrometallurgical flash smelting process is in use in finland to recover nickel from sulphide concentrates and it is the main process described in this report.
Nickel smelting extraction and purification nickel is recovered through extractive metallurgy it is extracted from its ores by conventional roasting and reduction processes that yield a metal of greater than 75 purity.In many stainless steel applications, 75 pure nickel can be used without further purification, depending on the composition of the impurities.
State of the art in nickel smelting direct outokumpu nickel technology.Experience of the direct outokumpu nickel don smelting process gained over.Produced in the flash smelting furnace directly without subsequent converting.
Only the pyrometallurgical flash smelting process is in use in finland to recover nickel from sulphide concentrates and it is the main process described in this report.The information presented is largely based on environmental permit applications, the corporate environmental programme and permit regulations concerning outokumpu.
The process itself is proven, as its features are similar to those in fsf, direct-to-blister and direct outotec nickel flash smelting don, with one significant difference it is.
9, ahola 2005 and norilsk nickel 2007.1944 outokumpu copper factory is moved from imatra to harjavalta.1945 the start-up of the outokumpu copper factory 1947 the start-up of the kemira sulfuric acid plant 1949 the start-up of outokumpu copper flash smelting process 1959 the start-up of outokumpu nickel flash smelting process.
Direct outokumpu nickel flash smelting process don - high metal recoveries with minimum emissions kojo, i.Canadian institute of mining, metallurgy and petroleum tallurgical society| australasian institute of mining and metallurgy | 1997.
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