The necessity and process of copper refining refractory material/refractory cement

Converter production of crude copper refractory cement, the copper content is generally 98.5%~99.5%, and the rest of the impurities,Such as sulfur, oxygen, iron, arsenic, antimony, zinc, tin, lead, bismuth, nickel, cobalt, selenium, Te, silver and gold and so on.These impurities exist in the copper, the nature of the copper to produce a variety of different effects, and some will reduce the conductivity of copper,Some, such as arsenic, antimony and tin, can lead to cracks in the interior of the section,Such as arsenic, bismuth, lead, sulfur; and some make the deterioration of the performance of cold processing,Such as lead, antimony, bismuth, in short, reduce the value of the use of copper.Some impurities such as gold and silver have high use value and economic benefit, need to recycle and use. Therefore, in order to meet the requirements of various uses of copper, crude copper refining.refractory cement

The purpose of refining has two, one is to remove impurities in copper, improve purity, so that copper content in more than 99.5%; two is separated from the copper recovery of valuable elements, improve the comprehensive utilization of resources refractory cement.Fireclay

There are two kinds of refining methods used at present:
1.Crude copper refining
Crude copper refining process, the direct production of copper containing more than 99.5% of refined copper.This method is only applicable to gold, silver and impurity content of the lower crude copper, copper produced only for the purity of the requirements of the occasion is not high.Fireclay

2.Crude copper is first removed by a fire process to remove some impurities
Crude copper first through the fire refining to remove some impurities, casting into the anode, and then electrolytic refining, the output of more than 99.95% of copper, impurities content to achieve the standard of refined copper. This is the main process of copper production refractory cement.

The crude copper refining process includes three processes: oxidation, reduction and casting. To 1150~1200 degrees in temperature, the air pressure into the culture melting copper, oxidation desulfurization impurities, and then hydrocarbon material refractory cement to remove the oxygen in the copper liquid, finally casting.Fireclay

Taurus Refractory ramming mass Factory mainly engaged in professional manufacturer of development, production and sales of the refractory mixture such as melting copper, aluminum and zinc furnace lining. And supply castable refractory for copper smelting, ramming mass for molten copper,fire clay,refractory mortar, refractory cement ,refractory mixture, refractory concrete and silica sand for copper smelting.
Website: http://www.jnrefractory.com  
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