Extraction of Copper from Copper pyrite - Reference Notes
The principle ore of copper is copper pyrite and copper is extracted from this ore. The different steps in extraction of copper are: Crushing and Concentration: The ore obtained from mines are broken down into small piece by jaw crusher and then pulverized. The ore being sulphide ore is concentrated by froth floatation process.
Removal of copper from ferrous scrap(Patent) | DOE Patents
Abstract. A process for removing copper from ferrous or other metal scrap in which the scrap is contacted with a polyvalent metal sulfide slag in the presence of an excess of copper-sulfide forming additive to convert the copper to copper sulfide which is extracted into the slag to provide a ratio of copper in the slag to copper in the metal scrap of at least about 10.
extraction of copper from copper slag
A Novel Process for Extracting Precious Metals from Spent ... A Novel Process for Extracting Precious Metals from Spent Mobile ... cementation and solvent extraction.6,7) ... and waste-copper slag to achieve the target slag ...
Recovery of copper and cobalt from ancient slag - Gülay ...
This slag contains large amounts of metallic values such as copper and cobalt. A representative slag sample containing 0.98% Cu, 0.49% Co and 51.47% Fe was used in the experimental studies. Two different methods, direct acid leaching and acid baking followed by hot water leaching were used for recovering Cu and Co from the slag.
Extraction Of Copper | Mining, Concentration, Smelting ...
The major steps in the extraction of copper are. Copper in Chalcopyrite is reduced to copper sulfide. Just like in Blast Furnaces, calcium carbonate is added as a flux to create the slag. Iron in Chalcopyrite is removed as Iron silicate slag. Most of the sulfur in Chalcopyrite turns into Sulphur dioxide (SO 2).
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.
Chemistry Books | Extraction of Copper From Copper Pyrites ...
Jun 16, 2018· Extraction of copper from copper pyrites involves the following steps. This tutorial is created based on plus two Chemistry Books. Crushing and concentration The ore is crushed and then ...
Copper Mining and Extraction: Sulfide Ores
This KS3 education resource looks at copper mining, extraction and pyroprocessing of sulfide ores. This KS3 education resource looks at copper mining, extraction and pyroprocessing of sulfide ores. ... Some impurities form a slag (such as FeO.SiO 2), which floats on the surface of the liquid (like oil on water) and is easily removed.
METALLURGY OF COPPER-EXTRACTION OF COPPER-BLISTER COPPER
FeSiO3 (slag) floats over the molten matte of copper. BESSEMERIZATION : Copper metal is extracted from molten matte through bessemerization . The matte is introduced in to Bessemer converter which uphold by tuyers. The air is blown through the molten matte. Blast of air converts Cu2S partly into Cu2O which reacts with remaining Cu2S to give ...
Leaching and recovery of zinc and copper from brass slag ...
Leaching and recovery of zinc and copper from brass slag by sulfuric acid. ... The increasing demand of zinc and copper in the world has required intensive studies for the recovery and extraction of these metals from different sources. Also, the tremendous increase in the use of these metals over the past few decades has inevitably resulted in ...
Copper Smelting Process - Brighthub Engineering
The copper ore become molten copper droplets that fall to the bottom of the furnace forming a molten copper layer with a slag floating on top of it. The molten copper is tapped and sent through the same processes as the reverb smelted copper, except for the converter stage, as it has been already converted to blister copper in the flash furnace.
Copper Smelting Chemistry Tutorial - ausetute.com.au
(FeO.SiO 2 can also represented as FeSiO 3). After the slag is removed, the resulting product, called matte, is a mixture of copper sulfides (mostly Cu 2 S) and impurities such as iron sulfides. This matte, containing about 40% copper, can then be fed to a converter.
extraction of copper from copper slag - BINQ Mining
Nov 19, 2012· extraction of copper from copper slag – Grinding Mill China. copper extraction and purification – chemguide: helping you to … This page looks at the extraction of copper from its ores, its purification by electrolysis, and … »More detailed
Extraction of iron from copper-plant slag | SpringerLink
Abstract. In the production of copper from sulfide ore, slag accumulates at the processing plant. In the present work, the phase transformations that occur in such slag during its reduction by the gasification products of carbon at 1100 and 1200°C are investigated.
Extraction of copper from copper pyrites (CuFeS2 ...
Extraction of copper from copper pyrites (CuFeS2) ... Copper is extracted from its principal ore copper pyrites (CuFeS 2). The ore is concentrated by froth flotation process. The concentrated ore is roasted in a reverberatory furnace when the following reactions occur. ... Most of the FeO is removed as a slag and a molten mixture of Cu 2 S and ...
TENORM: Copper Mining and Production Wastes | Radiation ...
Once PLS is leached, it is sent to a solvent extraction plant to remove the copper. The PLS is mixed with an organic solvent that binds to the copper and chemically separates the copper from the rest of the liquid. Then, the copper-bearing liquid is combined with another acid to precipitate the copper from the organic material. ... Copper slag ...
RECOVERY OF COPPER FROM COPPER SLAG AND COPPER …
Abstract: Copper smelter slag and copper smelter slag flotation tailings were leached using sulphuric acid solutions, without or with the addition of either ferric sulphate or hydrogen peroxide. Copper extraction from the slag was typically found to be twice as high as that from the slag flotation tailings.
Recovery of copper from copper slag and copper slag ...
Copper extraction from the slag was typically found to be twice as high as that from the slag flotation tailings. Hydrogen peroxide was determined to be the best lixiviant. Thus, copper and iron extractions were 63.4% and 48.6%, respectively, when leaching the slag with 3 M H2O2, after 120 minutes of reaction at room temperature.
Analysis of Slag. The - ERNET
extraction and a recovery of 55-56% was obtained. The non-extractable copper is inferred to be in solid solution in the smelter slag. INTRODUCTION The copper resources of our country are exceedingly limited, especially in comparison with our annual consumption which is of …
Extraction of copper from copper slag: Mineralogical ...
Point-to-point mineral chemistry of the copper slag is discussed in detail to give better insight into the association of copper in slag. Characterization studies of the representative sample revealed the presence of fayalite and magnetite along with metallic copper …
RECOVERY OF COPPER FROM SMELTING SLAG BY …
Dissolution of copper and iron from the calcine was found to be very fast and was complete within the first few minutes. The water temperature in the leaching step was found to have no effect on extraction of copper and iron from the calcine in the range of 30 to 85 oC. Keywords: copper, slag, sulphation, roasting, acid baking, leaching
Copper Mining and Processing: Processing of Copper Ores ...
The copper concentrate is first sent through the smelting furnace to be heated up to 2,300 °F and converted into molten liquid. The heated liquid is poured into a slag-settling furnace. This step produces a combination of matte, a mixture of copper, sulfur and iron, and slag, a dense, glassy material made of iron, silica, and other impurities.
The Extraction of Copper - Chemistry LibreTexts
Extracting of Copper from Other Ores. Copper can be extracted from non-sulfide ores by a different process involving three separate stages: Reaction of the ore (over quite a long time and on a huge scale) with a dilute acid such as dilute sulfuric acid to produce a very dilute copper(II) sulfate solution.
copper extraction and purification - chemguide.co.uk
Extracting copper from other ores. Copper can be extracted from non-sulphide ores by a different process involving three separate stages: Reaction of the ore (over quite a long time and on a huge scale) with a dilute acid such as dilute sulphuric acid to produce a very dilute copper(II) sulphate solution.
Innovations: How Hydrometallurgy and the SX/EW ... - Copper
This solution, known as pregnant liquor, is recovered and then contacted with an organic solvent, referred to as the extractant, in the solvent extraction stage (SX). Here the copper is extracted away from the aqueous phase leaving behind most of the impurities that were in the leach solution.
Extraction of Copper - YouTube
Apr 25, 2019· In this chapter we will discuss about Extraction of Copper The chief and important ore of copper from which the metal is most isolated is copper pyrites (CuFeS2). Froth floatation process is used ...
Recovery of Copper from Reverberatory Copper Slag and ...
possible option. The copper slag contains a high content of silica and iron. The solution final pH is the most important factor affecting the removal of iron and silica from the leach solution and the overall metal recovery. Fe removal from the leaching of copper slag is done by the formation of a metal hydroxide.
Extraction of copper from copper slag: Mineralogical ...
Request PDF on ResearchGate | Extraction of copper from copper slag: Mineralogical insights, physical beneficiation and bioleaching studies | Copper slag was subjected to in-depth mineralogical ...
What is a Copper Slag? (with pictures) - wisegeek.com
Aug 23, 2019· Copper slag is a by-product created during the copper smelting and refining process. As refineries draw metal out of copper ore, they produce a large volume of non-metallic dust, soot, and rock. Collectively, these materials make up slag, which can be used for a surprising number of applications in the building and industrial fields.
RECOVERY OF COPPER FROM SMELTING SLAG BY SULPHATION ...
In this work extraction of copper and iron from a reverberatory furnace slag was studied. A two-step extraction procedure was followed. The first step was roasting of the slag in the presence of sulphuric acid at temperatures between 150 and 800 C. The second step was leaching of the resulting calcine with distilled water. The maximum copper extraction of about 94% was achieved.
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