copper refining process nickel flux

Treatment of molten copper alloys [SubsTech]

 · Oxidation of copper melt is the first stage of the oxidation-deoxidation teratment. Oxidation is performed by an injection of Oxygen (from the furnace top or the bottom) combined with the action of oxidizing flux which prevents penetration of hydrogen from the atmosphere (particularly from the fuel fired furnaces). The fluxe also absorbs the oxide inclusions of copper and other metals forming ...

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Copper Production Processes :: Total Materia Article

Copper is recovered from solution by electro winning – a process similar to electrolytic refining. The process is most commonly used for leaching low grade deposits in situ or as heaps. The raw materials for copper winning contain, besides copper, numerous other elements like nickel, lead, tin, …

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35 MINERAL PROCESSING PLANTS

35–1 35 MINERAL PROCESSING PLANTS Introduction Thefollowingisabriefoverviewoftheprocessesinvolved inmineralproductioninOntario. Duringextractionandrefining ...

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Non-ferrous metallurgical processing | Lhoist

Lime products play a key role in the mining and extraction of non-ferrous metals, including aluminum, copper, gold, nickel, cobalt, uranium, titanium and lithium. Lime is also important for the pyrometallurgical refining and smelting of several non-ferrous metals. In addition, lime products are used in effluent and tailings treatment, and in settling, dewatering, filtration,

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General Principles and Processes of Isolation of Elements ...

 · What is the role of flux in the metallurgy of iron and copper? (CBSE Sample Paper 2011) Answer: Flux is a substance which combines with gangue which may still be present in the calcined or roasted ore to form an easily fusible material called the slag. ... Mond''s process for refining of nickel. Impure nickel is heated in a stream of carbon ...

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Copper processing

Copper processing - Copper processing - Roasting, smelting, and converting: Once a concentrate has been produced containing copper and other metals of value (such as gold and silver), the next step is to remove impurity elements. In older processes the concentrate, containing between 5 and 10 percent water, is first roasted in a cylindrical, refractory-lined furnace of either the hearth or ...

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OUTOTEC SMELTING SOLUTIONS FOR THE PGM INDUSTRY

The Outotec JAE Ni Smelting Process3 developed with Jinchuan Nickel and ENFI is used at the Jinchuan Nickel Smelter to process over 1.1 Mt/a of nickel sulphide feeds. The process is also used at Jilin Nickel in China to process 245 kt/a of nickel sulphide feeds.

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Electrorefining of Copper

8) Removal of As, Sb and Bi via electrowinning them onto an impure Cu deposit. 9) Evaporation of water and precipitation of Ni, Fe and Co as sulfides. • Table 6.3.2. Typical electrolyte conditions for copper electrorefining Figure 6.3.4 summarizes the total process. Normally, the sludge removal is by

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Samacheer Kalvi 12th Chemistry Guide Chapter 1 Metallurgy

 · Describe a method for refining nickel Mond process for refining nickel: (PTA – 3) Answer: ... In the extraction of copper silica acts as an acidic flux to remove FeO as slag FeSiO 3. ii) As Al 2 O 2 is a poor conductor cryolite improves the electrical conductivity.

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FERRONICKEL PRODUCTION AND OPERATION

Nickel is mainly used as f erronickel in stainless steel production industry. Its usage as low ... The product is charged to converter for refining after discarding the slag phase containing unreduced iron oxide, magnesium oxide and silica. ... process time and flux material addition was investigated.

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12.9 Secondary Copper Smelting

The process used by 1 U. S. facility involves the use of a patented top-blown rotary converter in lieu of the blast, converting, and reverberatory furnaces and the electrolytic refining process described above. This facility begins with low-grade copper scrap and conducts its entire refining operation in a single vessel. 12.9.2.3 Alloying -

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Environmental Code of Practice for base metals smelters ...

Sodium carbonate flux may be added to remove arsenic and antimony. Then the copper is reduced by a process known as "poling" with green wood poles or by feeding ammonia or natural gas to remove the oxygen, forming the purer copper to be cast as anodes. ... The carbonyl process is used for refining crude nickel oxide. Carbon monoxide and the ...

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Borates in metallurgical applications

Some examples of metal refining are given as follows: Nickel: Nickel ores usually contain large amounts of iron, copper sulfide, nickel sulfide, and sodium sulfide and varying amounts ... The Alcoa Alzak process of electropolishing of aluminum ... • Brazing flux (for brass, copper, monel, stainless steel): potassium fluoride (35%), borax (10% ...

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Extraction and Refining of the Platinum Metals

passed into the electrolytic nickel refinery. Electro-Refining Operations Copper anodes from the converter process are dissolved electrolytically using an acid copper sulphate solution as an electrolyte. The products of this operation are pure copper cathodes and an anode slime which Platinum Metals Rev., 1963, 7, (41,

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Borates in Metallurgy and Gold Refinement | U.S. Borax

Metallurgy. Use of borates in metallurgy begins at the beginning—with the mining process itself. In copper mining, 20 Mule Team ® Borax ammonium pentaborate solutions are used to stabilize blasting holes. In the production of steel and non-ferrous metals, borates act as a flux during smelting.

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Copper Mining and Production Processes Explained

Processes: copper mining and production. Copper is found in natural ore deposits around the world. This page explains copper mining: the production route taken from ore-containing rock to a final product that is the highest-purity commercial metal in existence and used in a wide variety of applications essential to modern living.

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Discovery of the Orford process for nickel extraction ...

Discovery of the Orford process for nickel extraction. The bottom was mostly nickel suphide; the top mostly copper sulphide. Mining began near Sudbury in 1886. When the first batch of Sudbury ore was poured from a furnace in a New Jersey refinery R.M. Thompson manager of the Orford Copper and Nickel Company knew he was in trouble.

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ab0cd Sub-sectoral Environmental and Social Guidelines ...

Refining Metal Smelting & Refining Sub Sector Environmental & Social Guidelines Page 2 solution. The impurities contain copper and precious metals, which are recovered. The carbon monoxide in the off-gas is recycled back into the process. • Fire or Anode Refining – removes further impurities from metal from the converting process.

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Customer Guide to Brazing Filler Metal Refining and Recovery

 · Refining is achieved by either a hot or cold process: Pyrometallurgy (Heat process) — Best for clean, high-grade materials such as production scrap, welding or braze waste, syringes, pastes, wipes, filters and organics with minimal amounts of impurities. Precious metals are isolated via thermal reduction to burn off other materials.

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Electrolytic Refining

 · Copper: In the actual copper-refining operation, the impure alloy of copper, nickel, gold, etc., is cast in a thin, flat plate constituting the anode: the cathode is usually a sheet of pure electrolytic copper. Anodes and cathodes (30 to 40 of each) are immersed in a cell containing copper sulphate and sulphuric acid which serves as an electrolyte.

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A New Process for Cobalt Nickel Separation

process flowsheet into which the new separation process is inserted. After the initial leaching process of the nickel ore or concentrate, and subsequent liquid/solid separation, purification is needed to remove: a) Copper, if present in commercial quantities, by solvent extraction.

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Nickel element extraction, mining technique – flash ...

In the electrolytic refining process, the nickel is unloaded onto pure nickel cathodes from sulfate or chloride solutions in electrolytic cells. In carbonyl refining, carbon monoxide is allowed to pass through the matte, in order to produce nickel and iron carbonyls [Ni(CO) 4 and Fe(CO) 5]. After purification, the nickel carbonyl being a very ...

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US4802917A

A process for autogenously smelting copper sulfide ore concentrate directly to semi-blister copper in which a calcareous flux is charged directly to an autogenouse furnace along with concentrate and copper-containing coolant. Furnace products are semi-blister copper, calcareous slag …

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OF AN IDEAL SMELTER

It is "THE PROCESS" for the 21st Century. The "Mitsubishi Continuous Smelting and Converting Process" which we have evolved from years of research and production experience, is the world''s only commercially proven pyro-metallurgical process to produce blister copper continuously from concentrates. 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 30

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Nickel processing

Nickel processing - Nickel processing - Extraction and refining: The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are the use of higher-temperature refractories and the increased cooling required to accommodate the higher operating temperatures in nickel ...

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Copper Smelting

refining. In fire refining, molten blister copper is placed in a fire-refining furnace, a flux may be added, and air is blown through the molten mix-ture to remove residual sulfur. Air blowing re-sults in residual oxygen, which is removed by the addition of natural gas, propane, ammonia, or wood. The fire-refined copper is cast into an-

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OVERVIEW OF PGM PROCESSING

•Nickel •Copper •Cobalt Sulphate •Sodium Sulphate •Nickel sulphate Base Metal Refining (incl. Magnetic Concentration for some players) Precious Metal Refining •PGMs •Gold Incorporating PGMs into various end applications Processing: c.10% of input from non-integrated miners

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US1703329A

US1703329A US27057828A US1703329A US 1703329 A US1703329 A US 1703329A US 27057828 A US27057828 A US 27057828A US 1703329 A US1703329 A US 1703329A Authority US United States Prior art keywords nickel copper metals sulphides sulphur Prior art date 1928-04-16 Legal status (The legal status is an assumption and is not a legal conclusion.

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Environmental assessment of base metal processing: a ...

nickel) and the revenue it generates (approximately 80% of the base metal revenue), as compared to the other products. of the potential environmental impacts of the base metal refining process were thus ascribed to the nickel produced. Before benchmarking against the results of similar studies for other nickel producers, it will be ...

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FIRE REFINING OF COPPER

A process is disclosed for fire-refining copper sulfide having a copper to nickel ratio of more than about 7:3, which process comprises maintaining a molten bath of copper sulfide in a turbulent state to volatilize at least about 50 percent of at least one impurity from the group consisting of bismuth, lead, tin and zinc, then surface blowing the turbulent bath of copper sulfide with a free ...

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How Hydrometallurgy and the SX/EW Process Made Copper …

Beginning in the mid 1980s a new technology, commonly known as the leach-solvent extraction-electrowinning process or, SX/EW Process, was widely adopted. This new copper technology utilizes smelter acid to produce copper from oxidized ores and mine wastes. Today, worldwide, approximately 20% of all copper produced is produced by this is process.

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Flux (metallurgy)

In metallurgy, a flux (derived from Latin fluxus meaning "flow") is a chemical cleaning agent, flowing agent, or purifying agent. Fluxes may have more than one function at a time. They are used in both extractive metallurgy and metal joining. Some of the earliest known fluxes were sodium carbonate, potash, charcoal, coke, borax, lime, lead sulfide and certain minerals containing phosphorus.

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