A method to recover valuable amounts of alkalies from trona ore

摘要

Method for recovering valuable quantities of alkali from the mineral trona obtained from deposits taken by extraction or mechanical Tillage. The Method comprises several stages, the first introduces the Ore in an aqueous Solvent containing 3 to 10% by weight of NaOH and dissolved the highchair with Sodium carbonate.The second step separates the sodium carbonate insoluble materials which has the MENA. And finally, to separate from Solution, Recovering Alkali in form of Crystallized Salt selected from the group consisting of sodium sesquicarbonate hydrates, anhydrous Sodium carbonate and sodium carbonate.