Ferrosilicon was found to be the most effective reductant for cobalt recovery while 70wt%Cu-30wt% Si alloy facilitated 72% copper and 87% nickel recovery. The highest copper recovery is achieved ...
DetailsBased on clarifying the composition, structure and properties of low-grade nickel matte, the effects of roasting temperature, roasting time, mass ratio of acid to matte, oxygen …
DetailsIn the traditional smelt route, the low‒nickel matte are further converter blowing to reduce the iron content and other impurities forming the high nickel‒copper matte. However, through this procedures, almost 70 wt % Co and most part Ni, Cu are transferred to the converter slag, leading to the massive loss of valuable metals.
DetailsThe grade of the matte is defined as the copper grade of matte A matte of 40 percent means, it has 40% copper, so matte is always given in terms of copper, because it is used to produce copper not iron Slag in matte smelting is mixture of oxides e.g. in smelting of copper ore concentrate the slag may contain SiO 2, Al 2 O 3, calcium oxide, FeO ...
DetailsSlag chemistry of the direct nickel matte smelting was studied in typical industrial high-grade nickel matte smelting conditions at 1400 °C and 0.1 atm pSO2. ... for the calculations. First, the ...
DetailsThe structural and electronic properties of Cu 1.96 S and Ni 3 S 2 present in nickel–copper converter matte and some other copper and nickel sulfides likely existing as …
DetailsThe converting of copper matte after the smelting process is one of the main steps in the copper-making industry. This work used microstructural analyses of samples collected at different stages of converting and thermochemical calculations to study a real converting batch in a Peirce-Smith converter at Atlantic Copper. The transformation of …
DetailsWhen this ore is treated by traditional pyrometallurgical smelting process, that is, the primary ore (flotation) → nickel concentrate (high temperature smelting) → low-grade nickel matte (converter smelting) → high-grade nickel matte (grinding and flotation separation or sulfuric acid leaching or high-pressure ammonia leaching process ...
DetailsDevelopment of an equation to calculate matte grade based on oxygen availability. Skip to main content. Account. ... Oxidation Potentials in Matte Smelting of Copper and Nickel Article 01 August 2014. Modern processes of copper concentration from mineral raw materials ... C. Copper smelter matte grade calculations. JOM 30, …
DetailsThe chemistry of the nickel-copper matte leach and its application to process control and optimisation ... state as well as metal content of samples. It is found that the recovery percentage for copper and cobalt can reach 99 % and 98 % under temperature 190 °C, oxygen partial pressure 6 atm, leaching time 2 h, liquid to solid ratio 5:1 ...
Detailsmatte grade will increase the interfacial tension, which can promote the precipitation and growth of nickel matte.9) The low Fe/SiO 2 grade and high matte grade causing a low slag density and high matte density, that is, a considerable density difference between matte and slag, can also enhance the matte drop settlement and shorten the dilution ...
DetailsCopper matte converting is the key step to ensure high primary copper recovery in the smelting chain. Its development and the fundamental research carried out over the past …
Details1. Introduction. When low-grade nickel matte is blown into a converter to produce high-grade nickel matte, a large amount of slag is generated, which contains many valuable …
DetailsIn this process, due to high chemical activity of chlorine, high solubility of generated chloride and strong complexing ability to impurities, nickel, cobalt, and copper in high-grade …
DetailsThe control of matte grade determines the production cost of the copper smelting process. In this paper, an optimal matte-grade control model is established to derive the optimal matte grade with the objective of minimizing the cost in the whole process of copper smelting. This paper also uses the prediction capability of the BP …
DetailsWhen nickel matte was oxidatively leached with dilute sulfuric acid, adding FeSO 4 can increase the extraction of nickel and cobalt to 90% and 80%, respectively (Morcali et al., 2019). While HCl solution with FeCl 3 as an oxidant was used to leach low grade nickel matte, 98.9% nickel, 99.3% copper and 98.1% cobalt could be extracted …
DetailsCopper matte converting is one of the main steps in the copper-making industry, in which harmful elements are removed [1,2,3] and valuable metals in secondary resources are recovered. [4,5] The Peirce–Smith converter (PSC) is a widely used copper matte converting process.[6,7] However, it has been gradually abandoned because of …
DetailsFind the Right and the Top Matte Grade Nickel And Copper Recovery Calculations … for the calculation of the copper … an ore concentrate in both copper … » Free online chat! Matte Grade Nickel And Copper Recovery Calculations | Process …
DetailsTwo INCO furnaces are used to produce low-grade nickel matte in INCO Copper Cliff of Canada. The furnace is 30.51 m long, 8.23 m wide, and 6.9 m high, with an annual output of 134,000 tons of nickel. ... and low recovery rate. This process has not been adopted in the newly emerging hydrometallurgical treatment facilities of high-grade …
DetailsValuable metals were leached from the high-grade nickel matte by three-stage of atmospheric pressure leaching and one-stage of pressure leaching. The leaching rates of nickel and cobalt were up to 98% and 97%, respectively. ... Huang K, Li QW, Chen J (2007) Recovery of copper, nickel and cobalt from acidic pressure leaching solutions …
DetailsHydrometallurgy, 3 (1978) 135--151 135 Elsevier Scientific Publishing Company, Amsterdam -- Printed in The Netherlands RECOVERY OF NICKEL AND COPPER FROM HIGH-GRADE MATTE AT IMPALA PLATINUM BY THE SHERRITT PROCESS* R.P. PLASKET Impala Platinum Limited, Marshalltown, Johannesburg, Transvaal (Republic …
DetailsOccasionally the calculation of the grade of perfect concentrate is unnecessary because the smelter may prefer a certain maximum grade. For example, a perfect copper concentrate for an ore …
DetailsLow-nickel matte was intensively characterized, and Ni, Cu, and Co were determined to exist mainly as (Fe,Ni)9S8 and FeNi3, Cu5FeS4, and (Fe,Ni)9S8 and Fe3O4 (in isomorphic form), respectively. The efficient and selective extraction of Ni, Cu, and Co from the low-nickel matte in an (NH4)2S2O8/NH3·H2O solution system was studied. …
Detailsthe nickel concentrate is smelted in one step into a high-1.5:1 and 15:1.[1] Since the distribution behaviors of minor grade nickel-copper matte without conventional converting. elements between the matte, slag, and gas during the pyro-Thenew conditionsand thenewprocess leadto somesignifi-metallurgical treatments of nickel-copper sulfide …
DetailsPROGRESS ON RECOVERY OF CRITICAL RAW MATERIALS Direct Extraction of Nickel and Copper from Low-Grade Nickel Sulfide Ore by Chlorination Roasting with Mixed MgCl 2Æ6H 2O ... When low-grade nickel matte is converted to high-grade nickel matte, it will cause a large loss of cobalt. In addition, the process of
DetailsThe direct extraction of valuable metals from low grade nickel matte by oxidative leaching or oxidative roasting has become a popular research topic (Xiao et al., 2021b).The relevant studies on the method of treating low grade nickel matte are summarized in Table 1.A two-stage counter-current leaching process was proposed to …
DetailsDOI: 10.1016/0304-386X(78)90016-6 Corpus ID: 95788711; Recovery of nickel and copper from high-grade matte at Impala Platinum by the Sherritt process☆ @article{Plasket1978RecoveryON, title={Recovery of nickel and copper from high-grade matte at Impala Platinum by the Sherritt process☆}, author={R. P. Plasket and S. V. …
DetailsOur purpose here is to study the granulation of copper–nickel mattes of variant composition for different process parameters. The main goal of the process is to recover …
DetailsThe leaching behaviour of nickeli?½copper matte in an acidici?½copper sulphate solution during the repulping stage at Impala Platinum Refineries has been studied. The base …
Detailsa fixed FeO/Fe3O4 ratio. Kyllo et al.[24,25] developed a mathe-Table I. Chemical Components in the Calculations matical model of the nickel converter based on the assump-tion that the three phases ...
DetailsNickel – Copper Matte with PGMs Technology Sherritt has developed process technologies to recover nickel, cobalt, copper and platinum group metals (PGMs) by the application of acid pressure leaching. Nickel-copper mattes, nickel laterite ores, and mixed nickel-cobalt sulphide precipitates are several examples of the wide range of
DetailsPE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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