Chemistry of inorganic compounds – Sulfur or compound thereof – Oxygen containing
Patent
1976-04-08
1977-07-19
Vertiz, O. R.
Chemistry of inorganic compounds
Sulfur or compound thereof
Oxygen containing
423150, C01G 4114
Patent
active
040369412
ABSTRACT:
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 mixture 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 sulfate solution.
REFERENCES:
patent: 1644250 (1927-10-01), Hart
patent: 3953306 (1976-04-01), Lancy
patent: 3954953 (1976-05-01), Satterwhite et al.
Boyles Bruce K.
Crow, Jr. John L.
American Cyanamid Company
Hearn Brian E.
VAN Loo William J.
Vertiz O. R.
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