Fire Refining Process description During refining the blister copper produced in the converter is processed to highgrade anode copper with a purity of over 99 in fire or anode furnaces
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In the Outotec Fire Refining Process the hot blister copper is charged into an anode furnace for purification The refining is carried out in batches where the necessary oxidation and reduction stages are used to purify the copperMore Details
The repeated application of such firerefining processes was capable of producing copper that was 9925 pure Electrolytic refining The purest copper is obtained by an electrolytic process undertaken using a slab of impure copper as the anode and a thin sheet of pure copper as the cathode The electrolyte is an acidic solution of copper sulphateMore Details
The blister copper is recovered and is then subjected to another process called fire refining In fire refining air and natural gas are blown through the copper to remove any remaining sulfur andMore Details
Provided herein is a process of fire refining blister copper comprising the steps of a providing molten blister copper into an anode furnace b when sulfur concentration of the molten blister copper provided in step a is above a first prescribed target value oxidizing sulfur in the molten blister copper by blowing oxygen containing gas into the molten blister copper until the firstMore Details
In fire refining blister copper is usually mixed with flux and charged into the furnace which is maintained at 1100°C 2010°F Air is blown through the molten mixture to oxidize the copper and any remaining impuritiesMore Details
Melting and Refining Technology for Copper Produced from Scrap Charge Our copper refining technology allows the use of higherimpurity charge materials and still produce premium quality refined copper In some applications copper produced by this method may compete with copper that underwent electrolytic refiningMore Details
Until the latter half of the 20th century smelting sulfide ores was almost the sole means of producing copper metal from mined ores primary copper production Davenport et al noted in 2002 that even then 80 of global primary copper production was from copper–iron–sulfur minerals and that the vast majority of these were treated by smelting Copper was initially recovered from sulfide ores by directly smelting the ore in a furnace The smeltersMore Details
Refining of copper Refining processes To obtain the commercial grades it is therefore necessary to refine the crude blister by refining processes The two processes involved are 1 Fire refining process and 2 Electrolytic process The second process is normally taken up with the product of the first process Comparative merits of the too processesMore Details
The continuous fire refining of copper in a packed bed is a feasible process ensuring the proper copper oxidation sulphur removal and copper reduction before anode casting The dispersion and motion of a liquid copper in a ceramic packed bed increase the gasMore Details
To remove or adjust the levels of these materials the blister copper is first fire refined before it is sent to the final electrorefining process 8 The blister copper is heated in a refining furnace which is similar to a converter described above Air is blown into the molten blister to oxidize some impuritiesMore Details
A method of intensive continuous copper fire refining said method comprising the stages of continuous tapping in a liquid copper 4 into a first oxidation reactor liquid copper oxidation with combustion gases containing oxygen or with air simultaneous formation of slag collecting impurities continuous tapping out of oxidized copper and refining slag from the first reactor 8More Details
The leadrefining process is described as “After copper drossing generally Te As Sn and Sb are removed substantially by the Harris Refining Process using fused NaOH A certain selectivity during refining is achieved by controlled addition of NaNO3 AnotherMore Details
In Outotec Fire Refining Process blister copper is processed into anode copper and has two main stages – oxidation and reduction The aim is highquality anode Refining metallurgy Wikipedia the free encyclopedia The repeated application of such firerefining processes was capable of producing copper that was 9925 pureMore Details
May 24 2018 · The invention relates to fire refining of blister copper and more particularly to a process of fire refining blister copper in three phases BACKGROUND OF THE INVENTION Blister copper produced in converters or direct to blister furnaces must be purified of sulfur and oxygen before itMore Details
The conventional fire refining process consists of an anode furnace capable of treating blister to anode copper through oxidation by air and reduction by reductant eg natural gas LPG or diesel However in most cases controlling of the refining cycle is not optimized and Outotec has identified several areas for improvement such asMore Details
The process of the copper fire refining in terms of greenhouse gas e missions was considered in 8 9 The refining process is based on the follow ing regularities High solubility of copperMore Details
The Refiners Fire a lesson from the process of refining fire in our lives Silver has a beautiful process of refining The refiners fire has purpose The Refiner’s Fire paints such a beautiful picture for us You might have heard the story before about the woman who goes to a silversmith to watch the process of refiningMore Details
Copper alloys are selected to convey many diverse fluids for the oil chemical process and marine industries Copper tube’s second largest application is in airconditioning and refrigeration systems its fastestgrowing use in is fire sprinkler systems and fuel gasMore Details
The smelting and converting of copper sulfide concentrates result in a “blister” copper that contains 97 to 99 percent of the silver present in the original concentrate Upon electrolytic refining of the copper insoluble impurities called slimes gradually accumulate at the bottom of the refining tankMore Details
The Refining Process The process of passing an electric current through a liquid from one electrode to another is called electrolysis When used to refine copper the process is called electrorefiningMore Details
copper Firerefined copper is cast into anodes which are used during electrolysis The anodes are converting and reverberatory furnaces and the electrolytic refining process described above This facility begins with lowgrade copper scrap and conducts its entire refining The principal pollutant emitted from secondary copper smeltingMore Details
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