Document Type and Number:
Japanese Patent JPH0325490
Kind Code:
B2
Abstract:
PURPOSE:To reduce the cost of recovery of bringing a soln. contg. dissolved Mo, U and V prepd. by leaching with a mineral acid into contact with an ion exchange resin and by adjusting the soln. to a specified pH so as to separate and recover the metals. CONSTITUTION:Coexisting Mo, U and V are leached out with a mineral acid and solid-liq. separation is carried out. The resulting soln. is brought into contact with an ion exchange resin to adsorb Mo, etc. The soln. is then adjusted to 0.5-3pH and brought into contact with an ion exchange resin to adsorb U. The soln. is further adjusted to 6-9pH to separate and recover V. The resin having the adsorbed Mo, etc. is treated with an acid or alkali, and a soln. prepd. by elution is adjusted to 8-10pH to separate and recover the Mo. A soln. prepd. by elution from the resin having the adsorbed U is adjusted to >=6pH to separate and recover the U.
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Inventors:
TANAKA AKIRA
Application Number:
JP3843285A
Publication Date:
April 08, 1991
Filing Date:
February 27, 1985
Export Citation:
Assignee:
DOWA MINING CO
International Classes:
C22B34/22; C01G31/00; C01G39/00; C01G43/00; C22B34/34; C22B60/02
Next Patent: JPH0325491