Separation of selenium, lead, antimony, tellurium, and bismuth in materials
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The wet powder material contains valuable metals such as selenium, lead, antimony, tellurium, and bismuth; what methods can be used to separate them one by one? Lead sulfate should not be produced, and lead must be recycled in an environmentally friendly manner
To state the approximate content of precious metals,
It can be distilled or removed through hydrogenation; it depends on what material you want to purify.
Leaching with Na2S+NaOH can be considered