Method for preparing electrolytic copper fast with copper ore

Abstract

The invention discloses a method for preparing electrolytic copper fast with copper ore. The method comprises the following steps: crushing oxidized ore containing 1 to 3 percent of Cu, silicon-doped ore, natural original ore or copper ore; spraying a strong oxidant solution of which the sulfuric acid concentration is 8 to 15 percent, hydrofluoric acid concentration is 0.2 to 0.4 percent, and potassium permanganate concentration is 0.15 to 0.3 percent; after continuous cyclic spraying for 24 to 48 hours, filtering a copper ion-doped solution in a storing pool for the strong oxidant solution, so as to remove impurities; placing calcium oxide to purify the solution; and placing the purified strong oxidant solution into a electrolysis bath to prepare electrolytic copper. The method is used for decomposing copper molecules from copper ore fast by adopting the fast chemical reaction of strong accelerant and strong oxidant, and has the advantage of low manufacturing cost and high recovery rate.

Description

technical field [0001] The invention relates to a process for preparing non-ferrous metal copper by electrolysis of copper ore. It uses a strong catalyst and a strong oxidant for rapid chemical reaction to quickly decompose copper powder in copper ore, purify it into copper sulfate liquid, and then prepare it by electrolysis. Electrolytic copper method. The method is particularly suitable for rapid preparation of electrolytic copper from copper oxide ore with low copper content, high silica fume copper ore and ancient tailings with low copper content. Background technique [0002] At present, there are a large amount of copper ores with low copper content (copper content 1-3%). Due to the high process and production costs, various methods cannot extract copper quickly and at low cost, resulting in these ores becoming garbage and waste being discarded. throw away. For example: primary gray copper ore containing more than 60% silicon, if it needs to be melted at 2100 degrees...

AI Technical Summary

Problems solved by technology

[0002] At present, there are a large amount of copper ores with low copper content (copper content 1-3%). Due to the high process and production costs, various methods cannot extract copper quickly and at low cost, resulting in these ores becoming garbage and waste being discarded. throw away

For example: primary gray copper ore containing more than 60% silicon, if it needs to be melted at 2100 degrees, it is difficult to melt it out by fire method, and the highest temperature of melting it with coke is 1450 degrees, so it will be a waste to extract copper by melting A lot of energy; if 60% copper oxide powder is selected by flotation machine, it will float away with the water, and the recovery rate is only about 30%, which means large investment and small income

Although China has a history of thousands of years of copper, the ancient tailing copper mines left by the ancients have trillions of tons, and their copper content is as low as 1%-3%, but the existing technology of using fire and water to select It is difficult to recycle and extract, making these ores a waste of no mining value. There are many small and medium-sized enterprises trying to mine or extract copper from it with little profit, and some even go out of business.