【摘要】 研究了盐酸溶液中AuCl₄^-在MET-802（相当于AmberliteXAD-7）树脂上的吸附平衡和柱穿透过程。测算出0.25～1.00mol/L盐酸范围内AuCl₄^-对Cl^-的选择系数,确认AuCl₄¹在柱穿透时的传质为液膜扩散主控,液膜厚度6=5.8×10^-2（v）^-0.65,与AuCl₄^-的浓度及树脂粒度无关,HETP服从Snyder方程h=1.8×10²γ₀（v）^0.35。更多还原

【Abstract】 The adsorption equilibrium and breackthrough process of AuCl4- in the medium of hydrochloric acid on MET-802 (corresponding to Amberlite XAD-7) has been studied.In the range of 0.25mol/L-1.00mol/L HCl the selectivity coefficients of AuCl4- to Cl- have been calculated from the experimental values. It has been confirmed that transfer of AuCl4- in the breackthrough process is main-controlled by the film diffusion process.The thickness of film δ = 5.8×10-2 (v)-0.65, which is independent of both the concentration of AuCl4- and the size of the resin. HETP is followed by Snyder equations h= 1.8 ×102(v) 0.35 .更多还原