HIGHLIGHTS:5.0m grading 9.69 g/t gold4.3m grading 9.87 g/t gold15.0m grading 2.54 g/t gold11.65m grading 1.86 g/t gold11.6m ...
has developed a type of sponge made of graphene oxide and chitosan, that can be used to extract gold from electronic waste.
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