Integrated acid leaching and biological sulfate reduction of phosphogypsum for REE recovery

Marja Salo, Oleg Knauf,Jarno Mäkinen,Xiaosheng Yang,Pertti Koukkari

Minerals Engineering（2020）

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摘要

•REE dissolution from PG was increased from < 1% to up to 62% with 0.05 M H2SO4.•Sulfate-reducing bioreactor was successfully operated with acidic PG leachate.•REE concentrated phases in the final precipitate reached 2.54% of the total sample.

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关键词

Phosphogypsum,Acid leaching,Rare earth elements,Biological sulfate reduction

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