smelting o idation desulfurization of pper slags

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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.

Cited by: 6

Smelting Oxidation Desulfurization of Copper Slags ...

01/12/2012  Abstract. 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.

Cited by: 6

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 ...

Smelting Oxidation Desulfurization Of Copper Slags

Smelting Oxidation Desulfurization Of Copper Slags 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.

Smelting Oxidation Desulfurization of Copper Slags

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.

Removal of Sulfur from Copper Smelting Slag by CO2 ...

Request PDF Removal of Sulfur from Copper Smelting Slag by CO2 In the process of extracting iron from copper slag, the iron obtained by reduction is difficult to use because of the high ...

Smelting Oxidation Desulfurization of Copper Slags ...

【摘要】: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 addition ...

smelting oxidation desulfurization of copper slags

US5180422A Copper smelting process Google Patents. A copper smelting process is disclosed in which copper concentrate is smelted in a furnace to produce purified copper Flue gas discharged from the furnace is treated to produce sulfuric acid Furthermore waste liquid discharged during the production of sulfuric acid is treated to produce gypsum and the gypsum thus produced is recycled to the ...

Study on smelting reduction ironmaking of copper slag ...

Request PDF on ResearchGate Study on smelting reduction ironmaking of copper slag According to the mechanism of smelting reduction, the process of smelting reduction ironmaking from copper ...

Smelting chlorination method applied to removal of

14/01/2015  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 O 2 flow rate are beneficial to increasing copper removal rate.

Cited by: 5

smelting oxidation desulfurization of copper slags

US5180422A Copper smelting process Google Patents. A copper smelting process is disclosed in which copper concentrate is smelted in a furnace to produce purified copper Flue gas discharged from the furnace is treated to produce sulfuric acid Furthermore waste liquid discharged during the production of sulfuric acid is treated to produce gypsum and the gypsum thus produced is recycled to the ...

Removal of Sulfur from Copper Smelting Slag by CO2 ...

In tube furnace, the desulfurization of copper slag was investigated by changing the temperature and flow rate of CO 2. Thermodynamic simulation using FactSage 7.1 shows that increasing temperature and flow rate of CO 2 can promote the removal of sulfur, and the desulfurization rate can reach up to 54.97%. The experiment shows that the removal ...

Smelting chlorination method applied to removal of

14/01/2015  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 O 2 flow rate are beneficial to increasing copper removal rate.

Smelting Oxidation Desulfurization of Copper Slags-【维普网 ...

论文服务: 摘 要: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 ...

发布位置:Journal of Iron and Steel Research International 2012作者:L I Lei Hu Jianhang Hua Wang从属关系: Kunming University of Science and Technology关于:Copper slag

Alternative Reduction of Copper Matte in Reduction

Three experiments are reduction of copper matte alone, reduction of copper matte in slag, and reduction of copper matte in alloy. Temperature is 1723 K. High-purity graphite powder (carbon content greater than 99.99%) was as reducing agent, and CaO (purity greater than

Looping Sulfide Oxidation Process for Anode Copper ...

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 ...

Removing sulfur dioxide from smelting flue and increasing ...

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.

Desulfurization of Copper-Iron Reduced from Copper

Request PDF on ResearchGate Desulfurization of Copper-Iron Reduced from Copper Slag In order to maximize the use of copper slag, a new idea that copper slag is reduced to smelt copper ...

Experimental Study on Oxidative Desulfurization and ...

The oxidation and reduction of molten copper slag were carried out and agreed well with theoretical calculations. Sulfur in slag can be dropped to 0.23 wt%, and the utilization rate of air is in the range of 14.98–73.39%. The copper recovery rate can reach 83.82% and the residue copper

Dynamic modeling of copper flash smelting process at a ...

01/04/2014  A dynamic model for quantifying the dynamic characteristic of matte grade in copper flash smelting process at a Copper Smelter in China has been developed. Based on the ratio of desulfurization of copper concentration, the model couples dynamic mass balances on each species with equilibrium relationships for major component. The model ...

Laboratory Extraction of Copper from Chalcocite by ...

C is a sectioned crucible after smelting, which illustrates the sharp copper-slag separation possible under favorable conditions. Copper Refining. The copper recovered from smelting was contaminated with sulfur and iron and had a composition approximately the same as blister copper (table 7, Head Sample). Fire-refining of such material is a ...

US5180422A - Copper smelting process - Google Patents

A copper smelting process is disclosed in which copper concentrate is smelted in a furnace to produce purified copper. Flue gas discharged from the furnace is treated to produce sulfuric acid. Furthermore, waste liquid discharged during the production of sulfuric acid is treated to produce gypsum, and the gypsum thus produced is recycled to the furnace as a flux.

Removal of Sulfur from Copper Smelting Slag by CO2 ...

In the process of extracting iron from copper slag, the iron obtained by reduction is difficult to use because of the high content of copper and Removal of Sulfur from Copper Smelting Slag by CO2 springerprofessional.de

Minimization of Copper Losses in Copper Smelting Slag ...

21/09/2012  During the last few decades, the pyrometallurgical processes used for cleaning copper smelting slags have been steadily optimized. The electric furnace or rotary slag-cleaning furnace are now generally used to perform this task, giving a level of copper in discard slag typically in the range of 0.55 wt.% and 1.3 wt.%, with most plants reporting copper losses in the discard slag in the range of ...

oxidation smelting process - africantravelogue.co.za

Oxidation Potentials in Matte Smelting of Copper and Nickel The oxidation potential, given as the base-ten logarithm of the oxygen partial pressure in bars and the temperature [log pO 2/T, C], defines the state of oxidation of pyrometallurgical extraction and refining processes.

Open Repository of National Natural Science Foundation of ...

Smelting Oxidation Desulfurization of Copper Slags Author. Li Lei; Hu Jianhang; Wang Hua. Publisher. 钢铁研究学报 英文版 Date Issued. 2012 DOI. 10.1016/S1006-706X(13)60026-6 Program . 青年科学基金项目 Project ID. 50906035 Sponsorship. 熔融铜渣定向催化气化城市生活垃圾制合成气的研究 ...

Study on Recovering Iron from Smelting Slag by ...

In order to recover the iron in copper smelting slag quenched with water in smelters, carbothermic reduction was adopted to reduce the iron oxide existing in different phase such as fayalite,vitreous and magnetite in the slag to metal iron. In the optimum conditions, it was demonstrated that the metallization efficiency of iron could reach more than 86.1%.

Slags, copper smelting - Registration Dossier - ECHA

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 oxides.

Smelting Reduction - vscht.cz

Smelting Smelting is a process of melting and separation of the charge into two or more immiscible liquid layers,which may be slag, matte, speiss or metal. The di!erent types of smelting are: (i) reduction smelting; (ii) matte smelting; and (iii) flash smelting

Chemistry - Important processes - Smelting, Roasting

15/09/2017  This chemistry video explains the important processes involved in extraction of metals i.e. Smelting, Roasting and Calcination. About us: We are a social enterprise working on a