【摘要】 L113B-液体石蜡-磺化煤油-NaOH液膜体系研究了砷的迁移富集行为。实验结果表明,在适宜条件下,As3+的迁移富集率在99.2%以上。在此条件下,许多共存离子如Fe3+、A l3+、Ca2+、Mg2+、Mo6+、Cu2+、Pb2+、Zn2+、Sn2+、N i2+、Sb3+、Co2+、Cd2+等;S iO32-、SO42-、PO43-、C l-、NO3-、C lO4-等,都不渗透进入此液膜。只有As能从这些离子中得到满意的分离。此法用于分离富集测定钼精矿、钼铁中的砷,结果十分满意。更多还原

【Abstract】 The transport enrichment of As³⁺ through the liquid membrane system of L113B-liquid paraffin-sulphonated kerosene and NaOH liquid membrane system has been Studied.Experimental results show that the transport rate of arsenic in 10 min is above 99.2%.In this case many co-ions,such as Fe³⁺、Al³⁺、Ca²⁺、Mg²⁺、Mo⁶⁺、Cu²⁺、Pb²⁺、Zn²⁺、Sn²⁺、Ni²⁺、Sb³⁺、Co²⁺、Cd²⁺,SiO^2-₃、SO^2-₄、PO³⁺₄、Cl^-、NO^-₃、ClO^-₄ etc.can not transport through this liquid membrane.So As³⁺can be separated from these ions with satisfactory.The method can be applied to the determination of As in molybdenum concentrate and ferromolybdenum,the results are satisfactory.更多还原