Researchers in China have introduced a room-temperature process that extracts over 98% of gold from discarded electronics, including old phones, in less than 20 minutes, at a cost of about US$1,455 ...
Since the modern gold rushes of the 1970s and 1980s, gold has been one of Australia's major exports. Australia is the second-largest gold producer globally behind China and holds the second largest ...
The assay comparisons expose a negative bias in grade estimation practices used for calculating concentrate value and provides further incentive for concentrate producers to eliminate or reduce their ...
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