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实验研究了D296型强碱性阴离子交换树脂对硫代硫酸根络合金阴离子([Au(S_2O_3)_2]~(3-))的吸附及洗脱过程。在常温常压下,考察了吸附溶液的pH值、铜氨浓度、亚硫酸盐浓度、硫代硫酸盐浓度以及树脂用量、搅拌速度等对吸附过程的影响。载金树脂的金洗脱实验表明,直接用硫脲加盐酸洗脱为宜。
The adsorption and elution of thiosulfate complex anions ([Au (S_2O_3) _2] ~ (3-) by D296 strongly basic anion exchange resin were studied experimentally. At room temperature and pressure, the adsorption solution pH, copper ammonia concentration, sulfite concentration, thiosulfate concentration and the amount of resin, stirring speed on the adsorption process. Golden gold-loaded resin elution experiments show that the direct use of thiourea plus hydrochloric acid elution is appropriate.