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tnoa-h2so4 ti xi zuo qu ge ji li de yan jiu
Duan Qunzhang The mechanism of extracting Cr with the system of tri-n-octylamine-H_2SO_4 by saturation method was studied. The species in extracted Cr and the molar ratio of TnOA to CrO_4~ and Cr_2O_7~ in extracted chromium complex compounds were measured at different pH and different total concentration of Cr. And extractive reaction equation of Cr was also given. Different conclusions of Deptula et al. for the species in extracted Cr were clarified;
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