Salt-soda sinter process for recovering aluminum from fly ash

作者: William J. McDowell , Forest G. Seeley

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摘要: A method for recovering aluminum values from fly ash comprises sintering the with a mixture of NaCl and Na2 CO3 to temperature in range 700°-900° C. period time sufficient convert greater than 90% content into an acid-soluble fraction then contacting thus-treated aqueous solution nitric or sulfuric acid effect dissolution other metal said solution.

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