【摘要】 研究了新型萃取剂CA 12在盐酸体系中萃取镓 (Ⅲ )的最佳萃取条件和性能 ,考察了各种条件对萃取的影响。用斜率法、等摩尔系列法及饱和容量法确定了萃合物的组成为GaA3 ·HA。利用红外光谱考察了萃合物的成键特征 ,并提出了酸性条件下的萃取反应方程式更多还原

【Abstract】 The extraction behavior and mechanism of Ga 3+ with CA 12 in hydrochloric acid solution was studied. The relationships between hydrochloric acid,concentration of CA 12, Ga 3+ and Cl - and extraction behavior were inspected, repectively. When pH is 4.2, the CA 12 concentration is 4 6×10 -3 mol·L -1 , the extraction rate of gallium is 100%. The extraction balance reaction was determined by slop analysis, constant molecular series method and saturation capacity method. It was confirmed that the composition of extracted species is GaA 3·HA更多还原