| 摘要 |
<p>Highly pure (>99.99%) aqueous solutions of gallium chloride are obtained by (i) liquid/liquid extracting an aqueous hydrochloric acid solution of gallium values with an organic phase which comprises an alcohol extractant, (ii) separating the organic phase from the aqueous phase, (iii) selectively washing said organic phase by intimately contacting same with water or with an aqueous solution of hydrochloric acid, (iv) next transferring the purified gallium values from said organic phase into an aqueous solution thereof, and (v) thence separating said organic phase from said resulting aqueous phase, whereby said aqueous phase comprises pure gallium chloride.</p> |
