Find the smelting method for copper oxide ore
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There is a copper oxide mine in a certain area of Xinjiang, with an annual copper production of 10,000 to 20,000 tons. The composition of this ore is as follows: Cu: 25–30%; S: 8–10%; Fe: 3–5%; SiO2: 35–40%. I would like to ask the experts: if pyrometallurgical processing is used, which method would be the best? Can a bottom-blown furnace or a side-blown furnace be used? Please share your opinions generously.
It’s better to use a blast furnace; bottom-blown or side-blown furnaces not only require large investments but are also unsuitable for this type of raw material.
It should be possible to use a side-blown furnace; the SO2 concentration in the flue gas from a blast furnace is low, so how can environmental protection issues be addressed? A side-blown furnace controls the reducing atmosphere, allowing the smelting of oxidized ores.
Using a blast furnace **is not allowed, and it does not meet environmental standards.
Yes, from the perspective of the person in charge, use the wet method.
Using the wet method – sulfuric acid in Xinjiang is too expensive! There’s also a fair amount of copper sulfide that can’t be extracted.
There seems to be some money, so I’m thinking of a better quality craft.
The process promoted for bottom-blown furnaces features a low coal blending ratio and less slag, making it unsuitable for processing copper oxide ore. A side-blown furnace should work.
Does anyone know if Central South University has a side-blown furnace laboratory?
Everyone, come in and help me solve this problem.
The composition of this ore is excellent, but it’s best to mix it with other ores; quartz can be completely omitted from this mixture. Otherwise, iron sulfide must be added. It can be processed using any manufacturing process. If the scale of production is not very large and the investment required is not high, a low-blow furnace is a more suitable option.