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Convenient processing of low-grade copper oxide ores
Convenient processing of low-grade copper oxide ores 1.Copper oxide ores are mainly distributed in South America, North America
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Key technologies for recycling jewelry gold
Key technologies for recycling jewelry gold
Generally, the purity of recycled jewelry gold is not high. K gold is called gold alloy, so it needs to be processed into 99.99% gold
First, jewelry gold needs to be roughly extracted, and aqua regia is used to melt gold and replace it into rough gold, with a purity of more than 92%.
Then electrolysis is used for purification, and the principle of current and potential difference is used for refining. In this way,
the purification of jewelry gold can become controllable, and the purity can be guaranteed to reach 99.99
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