Copper processing - Roasting, Smelting, 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.

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.

Copper extraction refers to the methods used to obtain copper from its ores. The conversion of copper ores consists of a series of physical, chemical, and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. [1]

Import and export of copper concentrate, Copper smelting by consignment. Company/settlement information, Introduction of major products.

What is copper smelting? The method of extracting pure elemental copper (Cu) from copper concentrate (CuFeS 2).

There are several methods of copper smelting, the popular ones being reverberatory smelting and oxygen flash smelting. Both methods require the resultant molten copper to be further processed to achieve a grade of 99.9% pure copper.

Typical copper pyrometallurgical process and the main chemical reactions of the smelting stage. The smelting process can be divided into three stages, namely decomposition of high-valence sulphide, oxidation of sulphide, and matte smelting and slagging reaction (Fig. 1).

2021年8月12日 · In a first step, smelting takes place in different types of furnaces depending on the raw materials and the process technology. An upper layer of slag and a lower one of matte, which has a copper content of approximately 55% form in the furnace.