Investigation of Copper Losses to Synthetic Slag at Different Oxygen Partial Pressures in the Presence of Colemanite

Date

2016-09-01

Author

RÜŞEN, AYDIN
Derin, Bora
Geveci, Ahmet
Topkaya, Yavuz Ali

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

151
views

0
downloads

Copper losses to slag are crucial for copper matte smelting and converting stages. One factor affecting the copper losses to slag during these processes is partial pressure of oxygen. In this study, theoretical and experimental investigations of oxygen partial pressure effect on copper losses to fayalite type slag in the presence of colemanite were investigated. Theoretical considerations include liquidus temperatures and phase diagrams of the fayalite type slag calculated by the FactSage software program. In the experiments, a synthetic matte-slag (SM-SS) was produced by melting certain amounts of reagent grade Fe2O3-SiO2 and metallic Fe as starting materials. Experiments were carried out with SM-SS pair by the addition of calcined colemanite (from 0% to 6%) under various partial pressures of oxygen (10(-7), 10(-9), 10(-11) atm) at 1250A degrees C for 2 h. From the experimental results, it was found that the amount of copper in slag decreased slowly when colemanite was increased under all oxidizing atmospheres. The lowest copper content in synthetic slag was obtained as 0.38% after 6% colemanite addition.

Subject Keywords

Thermodynamic considerations, Waste management, Viscosity, Minimization, Recovery

URI

https://hdl.handle.net/11511/30393

Journal

JOM

DOI

https://doi.org/10.1007/s11837-016-1954-6

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Effects of Some Additives on Copper Losses to Matte Smelting Slag RÜŞEN, AYDIN; Geveci, Ahmet; Topkaya, Yavuz Ali; Derin, Bora (2016-09-01) Copper is lost to slag between 0.7 and 2.3 wt.% during the industrial copper matte smelting stage. In the present study, the aim was to minimize these losses in the slag phase by adding some fluxing agents like CaO, B2O3 and calcium borate (namely colemanite-2CaO center dot 3B(2)O(3)center dot 5H(2)O). Eti Copper Inc. (EBI) flash furnace smelter slag containing 0.88 wt.%Cu and matte with the addition each of CaO, B2O3 and colemanite up to 10 wt.% of the total charge were melted in a silica crucible placed i...
Usage of boron compounds in copper production Rüşen, Aydın; Geveci, Ahmet; Topkaya, Yavuz Ali; Department of Metallurgical and Materials Engineering (2013) Copper losses to slag are generally between 0.7-2.3% during the copper matte smelting stage. In this study, the aim was to reduce these losses in the slag phase. For this purpose, usage of some additives (especially calcined colemanite labeled as CC, boric oxide-B2O3 and calcium oxide-CaO as well) as flux material was investigated. The flash furnace matte-slag (FFM-FFS) obtained from Eti Copper Inc. and a master matte-slag (MM-MS) produced synthetically were used as starting materials. Additives were tested...
Investigation of effect of colemanite addition on copper losses in matte smelting slag Rusen, A.; Geveci, Ahmet; Topkaya, Yavuz Ali; Derin, B. (2012-04-01) In this study, the aim was to reduce copper losses to slag in copper production by using a boron compound, called colemanite (2CaO center dot 3B(2)O(3)center dot 5H(2)O), as flux, besides silica. In order to achieve this purpose, two different matte-slag couples were used; the flash furnace matte-slag obtained from Eti Copper Inc. (EBI.) and a master matte-slag without copper produced synthetically under laboratory conditions. Chemical analyses of flash furnace slag and synthetic master slag were 0.88%Cu-36...
Analysis of warm forging process Aktakka, Gülgün; Darendeliler, Haluk; Department of Mechanical Engineering (2006) Forging is a metal forming process commonly used in industry. Forging process is strongly affected by the process temperature. In hot forging process, a wide range of materials can be used and even complex geometries can be formed. However in cold forging, only low carbon steels as ferrous material with simple geometries can be forged and high capacity forging machinery is required. Warm forging compromise the advantages and disadvantages of hot and cold forging processes. In warm forging process, a product...
STUDY OF CERTAIN PARAMETERS IN LABORATORY-SCALE SMELTING OF SIVRIHISAR LATERITE ORES OF TURKEY KESKİNKILIÇ, ENDER; Pournaderi, Saeid; Geveci, Ahmet; Topkaya, Yavuz Ali (2012-03-15) Conventional ferronickel smelting has five main steps: Drying, calcination, prereduction, smelting and refining. In the scope of the current work, smelting experiments were conducted using Sivrihisar laterite ores (1.26% Ni) of Turkey. The ore samples previously subjected to drying, calcination and prereduction stages were smelted in alumina crucibles in a laboratoryscale horizontal tube furnace under argon atmosphere. Smelting experiments were performed at 1500, 1550 and 1600 degrees C. The amount of exces...

Citation Formats

A. RÜŞEN, B. Derin, A. Geveci, and Y. A. Topkaya, “Investigation of Copper Losses to Synthetic Slag at Different Oxygen Partial Pressures in the Presence of Colemanite,” JOM, pp. 2316–2322, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30393.