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smelting oxidation desulfurization of copper slags

Smelting Oxidation Desulfurization of Copper Slags ...
2012-12-1 · Copper slags smelting oxidation desulfurization is gas-liquid reaction, possible reaction process of which can be illustrated as the following equations: Cu2S+|-02-f-;ySi02=Cu20 Â· ySi02+S02 (1) FeS- -02+xSi02=FeO Â· xSi02+S02 (2) 16 Journal of Iron and Steel Research, International Vol. 19 It consists of five steps as follows: 1) 02 ...
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Smelting Oxidation Desulfurization of Copper Slags ...
According to the mechanism of sulfur removal easily through oxidation, the process of smelting oxidation desulfurization of copper slags is studied, which supplies a new thinking for obtaining the molten iron of lower sulfur content by smelting reduction of copper slags. Special attention is given to the effects of the holding temperature, the ...
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Smelting Oxidation Desulfurization of Copper Slags ...
2012-12-1 · According to the mechanism of sulfur removal easily through oxidation, the process of smelting oxidation desulfurization of copper slags is studied, which supplies a new thinking for obtaining the molten iron of lower sulfur content by smelting reduction of copper slags. Special attention is given to the effects of the holding temperature, the holding time and CaF2, CaO
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Smelting Oxidation Desulfurization of Copper Slags ...
According to the mechanism of sulfur removal easily through oxidation, the process of smelting oxidation desulfurization of copper slags is studied, which supplies a
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Iron and copper recovery from copper slags through ...
2021-9-17 · To recover metal from copper slags, a new process involving two steps of oxidative desulfurization followed by smelting reduction was proposed in which one hazardous waste (waste cathode carbon) was used to treat another (copper slags). The waste cathode carbon is used not only as a reducing agent but also as a fluxing agent to decrease slag melting point.
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Study on smelting reduction ironmaking of copper slag ...
The results mdicate that the rate of copper slags smelting oxidation desulfurization depends on the matte mass transfer rate through the slag phase After
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Experimental Study on Oxidative Desulfurization of Molten ...
2020-2-18 · We study the oxidative desulfurization of copper slag at temperatures ranging from 1250 °C to 1450 °C using experimental copper slag as raw material. This is significantly different from the oxidative desulfurization process of low sulfur slag (wS 1500 °C compared with the literature. Based on thermodynamic equilibrium calculation and an
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Smelting chlorination method applied to removal of
2015-1-14 · In order to reasonably utilize the iron resources of copper slags, the smelting chlorination process was used to remove copper from copper slags. Higher holding temperature and O2 flow rate are beneficial to increasing copper removal rate. However, the Cu2O mode is formed by the reaction of surplus O2 and CuCl with O2 flow rate increasing over 0.4 L/min,
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Kinetics of copper extraction from copper smelting slag by ...
2020-6-15 · 1. Introduction. Copper is an indispensable basic raw material for modern industry, however, the grade of copper ore is relatively low in China for the reason that the copper mines are dominated by lean ore, associated ore, and symbiotic ore, especially in the process of smelting it is necessary to add fluxes such as calcium oxide and silica, thus producing a large
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Study on the role of copper converter slag in ...
2021-10-1 · The copper converter slag sample was collected by a copper smelting plant located in Yantai, China. Before the experiment of simultaneous removal of NO x and SO 2, the copper slag samples were first dried under 105°C overnight. Then these samples were crushing by a ball mill (XQM240 × 90, Changsha Tianchuang Powder Technology Co., Ltd, China ...
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Iron and copper recovery from copper slags through ...
2021-9-17 · To recover metal from copper slags, a new process involving two steps of oxidative desulfurization followed by smelting reduction was proposed in which one hazardous waste (waste cathode carbon) was used to treat another (copper slags). The waste cathode carbon is used not only as a reducing agent but also as a fluxing agent to decrease slag melting point.
Details
Recovery of Copper from Copper Smelting Slag Using a
The results mdicate that the rate of copper slags smelting oxidation desulfurization depends on the matte mass transfer rate through the slag phase After
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Iron and copper recovery from copper slags through
2021-7-7 · Abstract: To recover metal from copper slags, a new process involving two steps of oxidative desulfurization followed by smelting reduction was proposed in which one hazardous waste (waste cathode carbon) was used to treat another (copper slags).
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Materials | Free Full-Text | Influence of Desulfurization ...
2020-5-25 · Li et al. studied the process the smelting oxidation-reduction process of copper slags with air blowing. And results show that the sulfur content can be reduced from 0.52 wt.% to less than 0.01 wt.% with this method.
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Removing sulfur dioxide from smelting flue and increasing ...
2019-9-1 · Increasing the utilization of copper tailing and flue gas desulfurization is significant for copper smelters. Copper tailing, derived from the copper production, was applied to flue gas desulfurization and increasing utilization of copper tailing and smelting gas with low concentrations of SO 2 by preparing slurries composed of copper tailing and water.
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Study on the role of copper converter slag in ...
2021-10-1 · The copper converter slag sample was collected by a copper smelting plant located in Yantai, China. Before the experiment of simultaneous removal of NO x and SO 2, the copper slag samples were first dried under 105°C overnight. Then these samples were crushing by a ball mill (XQM240 × 90, Changsha Tianchuang Powder Technology Co., Ltd, China ...
Details
Kinetics of copper extraction from copper smelting slag by ...
2020-6-15 · 1. Introduction. Copper is an indispensable basic raw material for modern industry, however, the grade of copper ore is relatively low in China for the reason that the copper mines are dominated by lean ore, associated ore, and symbiotic ore, especially in the process of smelting it is necessary to add fluxes such as calcium oxide and silica, thus producing a large
Details
SOLUBILITY OF COPPER IN AUTOGENOUS SMELTING
2018-9-8 · Since the proportion of soluble loss of copper in slags from the KFP and PV processes is about 80% of the total copper content of slags [9], computations using Equation (1) make it possible to estimate the total copper losses with slags of the above processes. Equation (1) was used for plotting thermodynamic and smelting models [12]. CONCLUSIONS 1.
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Copper matte - slag reaction sequences and separation ...
2019-2-21 · often present in industrial smelting, such as CaO, MgO, and Al 2 O 3. Distributions of minor elements (Ag, Au, Pb, Sb, As, Zn, Pd, Pt, and Rh) in copper matte-slag system have also been extensively studied [5, 7-10]. The kinetics of matte smelting can be divided into two major parts: oxidation of chalcopyrite into matte
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METALLURGICAL USES FLUXES FOR METALLURGY
2016-3-4 · In copper smelting, an acid slag practice is used, and silica is added for repair of refractories in some parts of the smelting furnaces (Anderson, 1961, Fowler, 196 1). The slag formed in one operation can also serve as a flux in another. Slags formed in refining operations are often recycled to
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Slags, copper smelting - Registration Dossier - ECHA
Slags, copper smelting. EC number: 266-968-3 | CAS number: 67711-92-6 Slag resulting from the smelting of a heterogeneous mixture of copper and precious metals from primary and secondary sources and plant reverts. Major constituents are iron oxide and silicon dioxide with minor amounts of copper, lead, nickel and various non-ferrous metals and ...
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Copper losses to slags obtained from the El Teniente
2009-8-26 · COPPER LOSSES TO SLAGS OBTAINED FROM THE EL TENIENTE PROCESS 177 ... The products of smelting and oxidizing of copper concentrate with flux are two ... metal’ with the degree of oxidation being controlled so as to yield white metal with about 75 wt.% Cu and a slag that contains 7–10 wt.% Cu and 12–16 % Fe 3O 4. These molten
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Alternative Reduction of Copper Matte in Reduction
continuous development of copper smelting technology, the smelting intensity and matte grade increasing, matte in cop-per slag also constantly improved, and copper in slag of rich oxygen bottom converter was up to 3–4%. 3) All copper slags contained a considerable amount of Cu (0.42–4.6%) and Fe
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Dissolution of copper from smelting slag by leaching in ...
2017-10-29 · Leaching of copper smelting slag in chloride media was studied. The lixiviants used were aqueous solutions of hydrochloric ... of copper and other base metals from copper metallurgical slags [2]. Most of the studies on the ... forms that are more succeptible to oxidation than the iron compounds in the slag. The copper dissolution is
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SOLUBILITY OF COPPER IN AUTOGENOUS SMELTING
2018-9-8 · Since the proportion of soluble loss of copper in slags from the KFP and PV processes is about 80% of the total copper content of slags [9], computations using Equation (1) make it possible to estimate the total copper losses with slags of the above processes. Equation (1) was used for plotting thermodynamic and smelting models [12]. CONCLUSIONS 1.
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Copper matte - slag reaction sequences and separation ...
2019-2-21 · often present in industrial smelting, such as CaO, MgO, and Al 2 O 3. Distributions of minor elements (Ag, Au, Pb, Sb, As, Zn, Pd, Pt, and Rh) in copper matte-slag system have also been extensively studied [5, 7-10]. The kinetics of matte smelting can be divided into two major parts: oxidation of chalcopyrite into matte
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THE INFLUENCE OF THE SILICATE SLAG COMPOSITION
2009-12-10 · During pyrometallurgical copper extraction, smelting is the subsequent operation to the oxidation roasting of the concentrates. In modern pyrometallurgical processes for copper extraction, both operations are facilitated in the same unit, resulting with development of the two main phases: silicate slag and the copper matte.
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EXPERIMENTAL INVESTIGATION AND MODELLING OF
2021-4-19 · Keywords: Copper smelting, Slags, Microstructure, Thermodynamic modelling. ABSTRACT Effective extraction of copper from sulphide ores requires careful operation of a copper smelter, which in turn depends very much on the chemistry of the feed and the resulting slag and matte.
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METALLURGICAL USES FLUXES FOR METALLURGY
2016-3-4 · In copper smelting, an acid slag practice is used, and silica is added for repair of refractories in some parts of the smelting furnaces (Anderson, 1961, Fowler, 196 1). The slag formed in one operation can also serve as a flux in another. Slags formed in refining operations are often recycled to
Details
PHYSICOCHEMICAL CHARACTERIZATION OF COPPER
2013-7-23 · Copper slags are usually considered a waste and characterized only by the final copper content. Large and increasing quantities are being produced and disposed of by stockpiling near the metallurgical plants. This paper stresses the importance of physico-chemical characterization when considering uses for slags and the possibility of recovering the
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smelting oxidation desulfurization of copper slags

Smelting Oxidation Desulfurization of Copper Slags ...

Smelting Oxidation Desulfurization of Copper Slags ...

Smelting Oxidation Desulfurization of Copper Slags ...

Smelting Oxidation Desulfurization of Copper Slags ...

Iron and copper recovery from copper slags through ...

Study on smelting reduction ironmaking of copper slag ...

Experimental Study on Oxidative Desulfurization of Molten ...

Smelting chlorination method applied to removal of

Kinetics of copper extraction from copper smelting slag by ...

Study on the role of copper converter slag in ...

Iron and copper recovery from copper slags through ...

Recovery of Copper from Copper Smelting Slag Using a

Iron and copper recovery from copper slags through

Materials | Free Full-Text | Influence of Desulfurization ...

Removing sulfur dioxide from smelting flue and increasing ...

Study on the role of copper converter slag in ...

Kinetics of copper extraction from copper smelting slag by ...

SOLUBILITY OF COPPER IN AUTOGENOUS SMELTING

Copper matte - slag reaction sequences and separation ...

METALLURGICAL USES FLUXES FOR METALLURGY

Slags, copper smelting - Registration Dossier - ECHA

Copper losses to slags obtained from the El Teniente

Alternative Reduction of Copper Matte in Reduction

Dissolution of copper from smelting slag by leaching in ...

SOLUBILITY OF COPPER IN AUTOGENOUS SMELTING

Copper matte - slag reaction sequences and separation ...

THE INFLUENCE OF THE SILICATE SLAG COMPOSITION

EXPERIMENTAL INVESTIGATION AND MODELLING OF

METALLURGICAL USES FLUXES FOR METALLURGY

PHYSICOCHEMICAL CHARACTERIZATION OF COPPER

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