Preparation of ferric iron solutions

Details Preparation of ferric iron solutions Preparation of ferric iron solutions

C - Chemistry, Metallurgy

21

B

53/117

C21B 15/00 (2006.01) C01G 49/14 (2006.01)

Patent

CA 1094812

IN THE UNITED STATES PATENTS AND TRADEMARKS OFFICE PATENT APPLICATION OF BRUCE K. BOYLES AND JOHN L. CROW Jr. FOR PREPARATION OF FERRIC IRON SOLUTIONS ABSTRACT OF THE DISCLOSURE A process for recovery of iron from an iron mud containing a mixture of gypsum and ferric hydroxide, which comprises contacting said gypsum and ferric hydroxide mix ture with sulfuric acid of a concentration between 93 and 98% for a period of 1 to 12 hours, removing the undissolved material and recovering the iron as a 25 to 50% ferric sul- fate solution.

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