以工业H2O2为原料制备稳定的硫酸钠-过氧化氢-氯化钠加合物,考察了原料配比、反应温度和稳定剂对产品的影响;研究了母液循环工艺及产品稳定性。结果表明,以250 g Na2SO4为基准,加入300 mL27.5%H2O2,50 gNaCl,反应温度10℃左右,稳定剂选...以工业H2O2为原料制备稳定的硫酸钠-过氧化氢-氯化钠加合物,考察了原料配比、反应温度和稳定剂对产品的影响;研究了母液循环工艺及产品稳定性。结果表明,以250 g Na2SO4为基准,加入300 mL27.5%H2O2,50 gNaCl,反应温度10℃左右,稳定剂选用复合稳定剂时产品质量最佳;母液经5次循环,其组成、固相产品质量及产品中H2O2含量基本不变;产品在100℃加热,3 h的分解率小于2%;将5%的产品配入国标洗衣粉,其稳定性为过碳酸钠的20倍,与洗衣粉的配伍性较好。展开更多
A study on liquidliquid extraction of palladium based on KIethanol in the presence of ammonium sulphate was performed.The results showed that PdI42- can be easily extracted into the ethanol phase.Common io...A study on liquidliquid extraction of palladium based on KIethanol in the presence of ammonium sulphate was performed.The results showed that PdI42- can be easily extracted into the ethanol phase.Common ions,such as Fe(Ⅲ),Al(Ⅲ),Zn(Ⅱ),Mn(Ⅱ),Ni(Ⅱ),Cr(Ⅲ),and Co(Ⅱ),could not be extracted into the ethanol phase and do not interfere with the determination of Pd(Ⅱ) at pH45.展开更多
文摘A study on liquidliquid extraction of palladium based on KIethanol in the presence of ammonium sulphate was performed.The results showed that PdI42- can be easily extracted into the ethanol phase.Common ions,such as Fe(Ⅲ),Al(Ⅲ),Zn(Ⅱ),Mn(Ⅱ),Ni(Ⅱ),Cr(Ⅲ),and Co(Ⅱ),could not be extracted into the ethanol phase and do not interfere with the determination of Pd(Ⅱ) at pH45.
