Copper Slag - an overview | ScienceDirect Topics
Specimens cured at 60°C and 90°C, containing 50 wt.% copper slag showed comparable strengths to that obtained by samples with 100 wt.% copper slag. In copper slag-free activated binders an optimal curing temperature of 75°C was identified, while in specimens containing 50–100 wt.% copper slag a higher curing temperature (90°C) yielded the best compressive strengths.
What is a Copper Slag? (with pictures) - wiseGEEK
Apr 15, 2020 · Copper slag is the byproduct created during copper smelting and refining. Its made up of dust, soot, and rock, and is used to...
Ancient slag offers insight into the uneven pace of ...
Sep 20, 2019 · Less copper mixed with the slag suggests more-efficient smelting, so by tracking changes in the slag, Ben-Yosef and his colleagues could track the progress of …
Copper Final Slag and Smelting - European Copper Institute
Slag, copper smelting (high quality slag products) is defined as: Substance produced, from heterogeneous mixtures of copper contained material formed during copper production, by reduction at high temperature in molten state (i.e. melting and processing in a furnace) or by flotation processes. Main constituents are iron silicate and calcium-aluminium silicates, with the amount of non-ferrous …
Minimization of Copper Losses in Copper Smelting Slag ...
Sep 21, 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 ...
Utilisation of copper slag for cement manufacture ...
Using copper slag as a raw material for the manufacture of OPC. Materials and methods: The raw materials - limestone, copper slag, granulated blast furnace slag and bauxite were characterised for their stone and mineralogical properties using standard procedures. The results are presented in Table 1 and Figure 1.
Copper Slag - Granulated Copper Slag Latest Price ...
Copper slag is mainly used for surface blast-cleaning. Abrasive blasting is used to clean and shape the surface of metal, stone, concrete and other materials. In this process, a stream of abrasive grains called grit are propelled toward the workpiece.
Reductive-sulfurizing smelting treatment of smelter slag ...
The reductive-sulfurizing smelting treatment of copper-cobalt smelter slag was carried out under Ar atmosphere in a vertical MoSi 2 tube furnace. As an experimental procedure, 200g smelter slags were mixed with the given amount of coke and pyrite and/or slag modifier (CaO). Corundum crucible (150 ml, 73 mm outside diameter, 43 mm inside diameter
ISASMELT TM SLAG CHEMISTRY AND COPPER LOSSES IN THE …
of molten material. The furnace is fed continuously with copper concentrates and fluxes; oxygen-enriched air is injected into the bath through the lance, creating very intense bath agitation and a rapid reaction rate. The bath principally consists of molten iron-silicate slag and molten copper matte.
Characteristics and utilisation of copper slag—a review ...
Granulated copper slag is more porous and therefore, has lower specific gravity and higher absorption capacity than air-cooled copper slag. The granulated copper slag is made up of regularly shaped, angular particles, mostly between 4.75 and 0.075 mm (No. 200 sieve) in size (Emery, 1986, Hughes and Haliburton, 1973).
Copper extraction - Wikipedia
Copper can be lost from the matte in three ways: as cuprous oxide (Cu 2 O) dissolved in the slag, as sulfide copper dissolved in the slag or as tiny droplets (or prills) of matte suspended in the slag. The amount of copper lost as oxide copper increases as the oxygen potential of the slag increases.
Copper Slag - General Information, Process, Products ...
Copper slag is a by-product of copper production from copper ore. For every ton of copper produced about 2.2 ton of slag is generated. At present, across the world around 33 tonnes of slag is generated while in India three copper producers Sterlite, Birla Copper and Hindustan Copper produce around 6-6.5 tonnes of slag at different sites.
disadvantages of copper slag - opticalsolution.it
Copper slag is a by-product created during the copper smelting and refining process. Copper slag is a by-product obtained during the production of copper metal, which can be used as pozzolana in the production of cementing materials. Recycling copper slag to recover metals has been focused on copper recovery. Get price
Copper Loss in Slag - ResearchGate
G. Alvear. Intensive smelting of copper concentrate in Teniente Converter (CT) leads to the production of high grade matte and highly oxidized slag. Smelting slag is processed in Teniente vascular ...
Copper slag - Wikipedia
Copper slag is a by-product of copper extraction by smelting.During smelting, impurities become slag which floats on the molten metal. Slag that is quenched in water produces angular granules which are disposed of as waste or utilized as discussed below.
(PDF) Physical Chemistry of Copper Smelting Slags and ...
Such conditions include operating the electric furnace at metallic copper saturation, maintaining the %Fe in the electric furnace matte between 6 wt.% and 9 wt.%, not exceeding a slag temperature ...