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pre digestion in bauxite mining

3 Digestion A hot caustic soda NaOH solution is used to dissolve the aluminiumbearing minerals in the bauxite gibbsite böhmite and diaspore to form a sodium aluminate supersaturated solution or “pregnant liquor” Gibbsite AlOH 3 Na OH→ AlOH 4 Na Böhmite and Diaspore AlOOH Na OH H 2 O → AlOH 4 Na ...As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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