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Pyrometallurgical copper smelting process roasting

  • RECENT ADVANCES IN THE EXTRACTION OF COPPER,

    is not used for extraction of copper. Moreover, copper is extracted by matte smelting process without using any reductant. The process flow sheet for conventional pyrometallurgical extraction of copper from chalcopyrite concentrate is shown in Fig. 4. Concentrate (15-35% Cu) Fig. 4 : Pyrometallurgical extraction of copper from sulfide ores

  • Pyrometallurgical Process - an overview ScienceDirect Topics

    Roasting, smelting, and converting are pyrometallurgical process steps that are based on the relative affinities of metals for sulfur and oxygen. A typical process flowsheet is shown in Fig. 1. Iron sulfide is primarily converted to oxide in roasting.

  • PERUMIN 31: Pyrometallurgical Processing Technologies for

    Dec 01, 2014· Both employed reductive roasting-smelting process for the treatment of enargite concentrates. 62. Conclusions Despite the perceived shortcomings for roasting to selectively volatilize arsenic, the process could an option under specific conditions, provided that a arsenic precipitation process is possible.

  • THE INFLUENCE OF THE SILICATE SLAG COMPOSITION ON

    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.

  • Review of copper pyrometallurgical practice: today and

    Oct 01, 2003· The pyrometallurgical processing of copper varies worldwide with respect to the charge materials, process, operating parameters, and the physical shape, size, and orientation of the vessel. The Mitsubishi system is deemed a bath smelting process which combines roasting, smelting and converting in a continuous operation enabled by three

  • Chapter 6 Copper Production Technology

    Figure 6-2.Early Smelting Technology Charcoal ore flux \ m The Egyptian copper smelting furnace was filled with a mixture of copper ore, charcoal and iron ore to act as a flux. It was blown for several hours by foot or hand bellows. By the end of the smelt the copper

  • DC ARC SMELTING OFDEAD-ROASTEDSULPIDDE

    Mintek has developed and piloted a novel process for the treatment ofnickel-copperand PGM (platinwn group metal) sulphide concentrates. The ConRoastprocess is based onthe removal of sulphur by roasting, followed by smelting ofthe dead-roastedconcentrate in a DC arc furnace using an iron-based alloy as a collector for nickel, copper, cobalt, and

  • Optimization of the arsenic removal process from enargite

    Most of the worlds refined copper production is based on pyrometallurgical processing of copper con-centrates, which includes roasting, smelting and refi-ning in order to obtain high-quality copper cathodes. In Europe, ore deposits that contain metals in viable con-centrations have been progressively depleted and few indigenous sources remain.

  • SUSTAINABILITY OF COPPER SLAG PROCESSING FROM NEW

    The pyrometallurgical production of copper consisted of roasting in FS batch reactors, smelting in the reverberatory furnaces, mate converting in standard PS converters, anode refining of blister copper to anode material and casting. Off gas that was generated in the process of roasting and converting

  • What Are The Steps For Concentrating And Smelting

    Copper smelting equipment The pyrometallurgical copper smelting process involves 4 steps roasting smelting concentrating and fire refining Environmental Guidelines for Copper Smelting 354 Copper Smelting residues requires preparation of the scrap such encapsulation of process equipment and use of covered or enclosed conveyors

  • Recovery of Copper from Copper Sulfide Concentrate by

    Oxidation roasting needs high roasting temperature and copper will suffer a loss by generating copper ferrite. The exhaust gas (SO 2, Cl 2, HCl) from the furnace in chlorination roasting process is a threat to the environment. In sulfation roasting, copper was mainly formed to soluble sulfate by water or dilute acid after roasting.

  • 12.3 Primary Copper Smelting

    A typical pyrometallurgical copper smelting process, as illustrated in Figure 12.3-1, includes 4 steps: roasting, smelting, concentrating, and fire refining. Ore concentration is roasted to reduce impurities, including sulfur, antimony, arsenic, and lead. The roasted product, calcine, serves as a dried and heated charge for the smelting furnace.

  • 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

  • Pyrometallurgical Article about pyrometallurgical by The

    The procedures that are used in pyrometallurgy are roasting, smelting, conversion, refining, and distillation. With roasting, the material retains its solid state while undergoing a change in composition and some degree of grain enlargement. Roasting in fluidized-bed furnaces is an efficient process that is widely used in nonferrous metallurgy.

  • Assessment of the Harmfulness of the Slags from Copper

    hydrometallurgical and pyrometallurgical. Copper concentrates, from which copper matte is melted, constitute the charge at melting primary copper in the pyrometallurgical process. This process consists of a few stages, of which the basic ones are roasting and smelting. Smelting process

  • Pyrometallurgy: Roasting, Smelting, Refining & Electrowinning

    Pyrometallurgy: Roasting, Smelting, Refining & Electrowinning To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN Use Add New Topic to ask a New Question/Discussion about Pyrometallurgy and Electrometallurgy.

  • CHEM ENG 7059 - Pyrometallurgy Course Outlines

    The course covers the processes used in zinc roasting, copper smelting and refining, iron and steel making, lead smelting and refining, nickel smelting, aluminium production, synthetic rutile and titanium production. Apply basic engineering principles to the design of pyrometallurgical process; 3:

  • Pyrometallurgy Britannica

    The most important operations are roasting, smelting, and refining. Roasting, or heating in air without fusion, transforms sulfide ores into oxides, the sulfur escaping as sulfur dioxide, a gas. Smelting (q.v.) is the process used in blast furnaces to reduce iron ores. Tin, copper, and lead ores are also smelted.

  • Review of copper pyrometallurgical practice: today and

    Oct 01, 2003· The pyrometallurgical processing of copper varies worldwide with respect to the charge materials, process, operating parameters, and the physical shape, size, and orientation of the vessel. Plant operations may be either batch, semi-continuous, or fully continuous to produce blister copper or other end product.

  • SUSTAINABILITY OF COPPER SLAG PROCESSING FROM

    The pyrometallurgical production of copper consisted of roasting in FS batch reactors, smelting in the reverberatory furnaces, mate converting in standard PS converters, anode refining of blister copper to anode material and casting. Off gas that was generated in the process of roasting and converting

  • Recovery of Copper from Copper Sulfide Concentrate by

    needs high roasting temperature and copper will suffer a loss by generating copper ferrite. The exhaust gas (SO 2, Cl 2, HCl) from the furnace in chlorination roasting process is a threat to the environment. In sulfation roasting, copper was mainly formed to soluble sulfate by water or dilute acid after roasting. Mostly this method is applied

  • Copper Smelting Technology Trends - LinkedIn

    Aug 23, 2017· Roasting, smelting and converting are the most common pyrometallurgical processes. Roasting. Historically, copper concentrates have undergone roasting treatment processes. The roasting process is

  • SYNERGY OF ENERGY RESOURCES OF COPPER

    copper concentrate, pyrometallurgical processing of copper sulfide concentrates and production of anode copper. The installed pyrometallurgical process includes the following technological units: batch roasting in the fluosolid reactor, calcine smelting in the reverberatory furnaces, converting in the Peirce Smith converters, flame refining of

  • SOURCE ACTIVITY TITLE: P ROCESSES WITH CONTACT Primary

    in primary smelters. More than 80 copper smelters around the world employ various conventional pyrometallurgical techniques to produce more than 90 % of the total copper production (e.g. Pacyna, 1989). Generally there are 3 steps in this process: 1) roasting of ores to remove sulphur, 2) smelting of roaster product to remove a part of the

  • COPPER Copper production - Repository

    Pyrometallurgical copper production Figure 3: Typical flow sheet for pyrometallurgical copper production from ore concentrates The large blast and reverberatory furnaces of the 1900s were derived from these principles. Later, steps of roasting and smelting are combined into a roast smelting process. The spatial and

  • 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

  • TOWARDS COMMERCIALISATION OF MINTEK'S

    the initial work done in a pyrometallurgical research laboratory to reach full industrial implementation. and hydrometallurgical process routes for the treatment of a nickel-copper-cobalt-PGM concentrate to Mintek came up with the concept of a smelting process that involved dead-roasting of concentrate followed by reductive smelting in

  • Pyrometallurgical Processing Technologies for Treating

    Various pyrometallurgical methods for treating copper concentrates that contain appreciable arsenic are reviewed. Various aspects of the engineering of these treatment methods are discussed. The methods discussed include: complete oxidation with arsenic fixation; selective volatilization of arsenic; acid baking, soda ash roasting, and others

  • SNAP CODE: 030306 SOURCE ACTIVITY TITLE: PROCESSES

    conventional pyrometallurgical techniques to produce more than 90 % of the total copper production (e.g. Pacyna, 1989). Generally there are 3 steps in this process: 1) roasting of ores to remove sulphur, 2) smelting of roaster product to remove a part of the gangue for

  • Pyrometallurgical Removal of Arsenic from Dusts Collected

    This paper (the first of a series of two) seeks to describe the experimental results of removing arsenic from dust collected in electrostatic precipitators of copper into the pyro-metallurgy gas cleaning systems. The first work corresponds to the treatment of dust contained in gas off generated in the copper Flash Smelting Furnace process (FS dust), while the second focuses on the treatment of

  • (PDF) PARTIAL ROASTING OF COPPER CONCENTRATE WITH

    Identification of the significant factors determining extractability of Ni and Cu after sulfation roasting of a Process dynamics View project Feature extraction with deep learning for froth flotation images View project. By Cleophace Ngoie Mpinga. Extractive Metallurgy of Copper.

  • Smelting and Refining - ILO Encyclopaedia

    Roasting is an important pyrometallurgical process. Sulphating roasting is used in the production of cobalt and zinc. Its purpose is to separate the metals so that they can be transformed into a water-soluble form for further hydrometallurgical processing. The smelting of sulphidic ores produces a partially oxidized metal concentrate (matte).

  • Article Pyrometallurgical removal of arsenic from dusts

    Aug 20, 2020· The fluidized bed roasting process 600 kilotons of copper concentrate per year with 3-6 wt% of concentration of arsenic, producing a roasted product with a low content of arsenic below 0.3 wt%. The process generates 27 kilotons of the RP dust per year with a concentration of arsenic of the order of 5 wt% and copper concentration of around 20 wt%.

  • (PDF) Pyrometallurgy - ResearchGate

    Pyrometallurgical methods are commonly used to process high-gra de ores, partial roasting process is emp loyed the desirable metallic mineral will still be in the . copper smelting, and

  • Pyrometallurgy Carmeuse

    Enabling the slagging process in copper smelting and Waelz zinc recovery. Facilitating the chromite ore smelting. Capturing sulphur dioxide in sulphide roasting of lithium ores. Capturing acid pollutants from pyrometallurgical flue gases.

  • Characterization of Two Sludges from a Pyrometallurgical

    Smelting copper concentrate in the FF is a continuous process in which O 2-erinched air is blown and dried concentrate, flux agent (SiO 2) and recycled materials come from different steps of the process at 1250 °C.The copper concentrate (raw material with about 30% in Cu) reacts with O 2 to form molten iron-silicate (slag) and Cu-enriched molten sulphide phase (matte, in which the copper

  • A TECHNO-ECONOMIC COMPARISON OF

    pyrometallurgical option, involving a low temperature roast to selectively fume off the arsenic and leave a high-copper calcine, coupled with an arsenic stabilization step, has been demonstrated in the laboratory, and a preliminary techno-economic evaluation shows the process to

  • Copper: smelting, producing and classification-Metalpedia

    Copper: smelting and classification; The smelting of copper; Copper that is mined from copper ore, after beneficiation, becomes high quality copper concentrate. Then, after being smelted, refined copper and copper products are yielded. There are two ways of smelting copper, one is pyrometallurgy, the other hydrometallurgical.

  • Copper extraction - Wikipedia

    Copper sulfide and iron oxide can mix, but when sufficient silica is added, a separate slag layer is formed. Adding silica also reduces the melting point (or, more properly, the liquidus temperature) of the slag, meaning that the smelting process can be operated at a lower temperature. The slag forming reaction is: FeO + SiO 2 FeO.SiO 2

  • Treatment of Arsenic in copper smelting

    White ash is one of the major by-product during copper smelting. 70-100 kg white ash will be generated with each ton of copper is made. Arsenic content rangesfrom 10% to 15% in white ash, other including lead, copper and zinc. Typical element content from a Chinese copper smelter

  • Charge Calculations in Pyrometallurgical Processes

    Smelting It is a unit process similar to roasting, to heat a mixture of ore concentrate above the melting point The objective is to separate the gangue mineral from liquid metal or matte The state of the gangue mineral in case of smelting is liquid which is the main difference between roasting and smelting Inputs Ore, flux, fuel, air

  • (PDF) Recovery of Copper from Copper Sulfide Concentrate

    A roasting process is designed to transform the elements to phases that can be easily dissolved. copper from the dust generated in a copper smelting plant. sulphides involves the use of a

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