主要应用

  • 贵重金属回收
  • Chromium III baths purification

包装样式

  • 1 CF 编织袋
  • 25L 阀口袋
  • 5 CF 纤维板桶
  • 1M3 立方袋
  • 42 ft³ 立方袋

典型物理和化学参数

聚合物骨架 聚丙烯酸二乙烯苯交联
外观 球状颗粒
官能团 偕胺肟
离子型态 FB 型
铜交换量 (最低) 40 g/L
含水量 52 - 60 % (FB 型)
粒径分布 300 - 1200 µm
< 300 µm (最大) 1 %
均一系数(最大) 1.7
转型膨胀率, FB → Cl-(最大) 10 %
比重 1.19
包装密度(大约) 740 - 790 g/L (46.2 - 49.4 lb/ft³)

水力学特性

Backwash

A 20 BV downflow rinse is required before the vessel is put into service. This rinse can be done onsite or offsite pre-installation. Once the resin is put into service, backwashing is not permitted as this will lead to shortened bed life. This is a uniform grade resin with beads of similar size and will not require backwashing for classification / stratification before use. If it is determined, before startup, that air bubbles or particulate matter are trapped within the bed, then backwashing can be done. In that case, the resin bed should be expanded by 50-70% for 10-15 minutes. Please note that bed expansion increases with higher flow rate and lower water temperature. Avoid loss of resin through the top of the vessel by over expansion of the bed.

Backwash Expansion of Resin Bed

压降

离子交换树脂的压降取决于粒度分布、床层高度、树脂颗粒间空隙体积,以及物料的流速和粘度。 任何对这些参数的影响-比如被树脂床层截住的颗粒物、对树脂床层的异常压缩、床层的不规则分布-都会对压降产生不利影响,造成压头损失。 针对不同的物料质量、应用环境和系统设计,流速可能处于10 – 40 BV/h范围内变化。

床层压降