| 摘要 |
<p>PURPOSE:To extract easily and selectively In and Ga from an aq. sulfuric acid soln. by submitting the aq. sulfuric acid soln. contg. In and Ga to extraction with use of a soln. in an org. solvent contg. alkylphenylphosphoric ester. CONSTITUTION:An aq. sulfuric acid soln. contg. In and Ga is subjected to extrac tion at >=0.5mol/l sulfuric acid concn. by using a soln. in an org. solvent contg. alkylphenylphosphoric ester, and separated into an org. phase contg. In and an aq. phase contg. Ga. Then the aq. phase thus obtained contg. Ga is subjected to extraction at <0.5mol/l sulfuric acid concn. by using an soln. in an org. solvent contg. alkylphenylphophpric ester to transfer Ga into the org. soln. The In and Ga respectively transferred into each org. phase are easily stripped by hydrochloric acid, sulfuric acid, or a sodium hydroxide soln.</p> |
