Method for extraction of iron aluminum and titanium from coal as

Details Method for extraction of iron aluminum and titanium from coal as Method for extraction of iron aluminum and titanium from coal as

1984-10-24

1986-01-28

Carter, H. T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

423 82, 423 85, 423127, 423132, 423140, 423150, C01G 2304, C01G 4902, C01F 702

Patent

active

045670269

ABSTRACT:
A method is disclosed for the recovery of iron, aluminum and titanium from coal ash. The method comprises magnetically extracting magnetite from the ash, leaching the ash with a solution of a mineral acid, precipitating and removing titanium and iron hydroxides from the leach solution by adding thereto a solution of a strong base, and precipitating and removing aluminum hydroxide by contacting the remaining solution with carbon dioxide or aluminum hydroxide seeding.

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De Carlo et al., "Oak Ridge National Lab., #ORNL/TM-6126", Oak Ridge Lab., Oak Ridge TN, 1978, pp. 33-39 cited.

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