DETA沉淀法回收含铑溶液中的铑

Recovery of Rhodium from Rhodium-bearing Solution by DETA Precipitation

研究了DETA沉淀法回收含铑溶液中铑的工艺,当反应温度为100℃,1 500mL含铑溶液DETA溶液用量为200mL时,铑的沉淀就处于平稳状态,煅烧还原后得到纯度大于99.9%的铑粉,铑直收率为96.77%。

The process to recover rhodium from rhodium-bearing solution by DETA precipitation method was studied.Rhodium precipitation is in a steady state when reaction temperature is 100 ℃ and dosage of DETA solution is 200 mL for 1 500 mL rhodium-bearing solution.Rhodium powder with purity of 99.9%above is obtained with rhodium direct recovery of 96.77% after calcining and reduction.