SQD-729是一种大孔苯乙烯系强碱性阴离子交换树脂，专用于乙二醇生产中水的循环回用处理。可有效去除水中的各种阴离子，与SQD-61 / SQD-92 / SQD-749中的一种或多种组合，可以大幅提高水的UV值(紫外透光率)，从而提高乙二醇的产品品质。
SQD-729 is a macroporous polystyrene-based strong anion exchange resin. It is specially designed for the recycling water treatment in the ethylene glycol production. Combined with one or all of SQD-61 / SQD-92 / SQD-749, the UV value of the treated water could be largely increased, so that the quality of ethylene glycol obtained could also be largely increased.
树脂的物化性能指标(Physical and Chemical Properties)
|
项目 |
指标 |
|
质量全交换容量(Mass Capacity)≥ |
3.6 |
|
总交换容量(Total Capacity) mmol/ml≥ |
1.25 |
|
含水量(Water Retention)% |
50-60 |
|
湿视密度(Density)g/ml |
0.65-0.75 |
|
湿真密度(Bulk Density) g/ml |
1.05-1.15 |
|
粒度范围(Particle Size) % |
(0.4-1.25mm)≥95 |
|
有效粒径(Effective Size)mm |
0.5-0.7 |
|
均一系数(Uniformity Coefficient)≤ |
1.6 |
|
最高使用温度(Max Temperture) ℃ |
80 |
|
渗磨圆球率(Osmotic Whole bead after Wearing) %≥ |
90 |
|
转型膨胀率(Swelling) %≤ |
15 |
|
比表面积(Surface Area) m2/g |
25-35 |
|
溶解性(Solubility) |
不溶于水和任何有机溶剂和酸碱 |
|
出厂型式(Shipping Form) |
Cl |
企业标准(Enterprise Standard)
Q/320281NAN 38-2019
树脂再生方法(Regeneration Method)
在经过多种树脂综合处理过的水的电导率或UV值超标时，树脂需要再生。对SQD-729树脂再生时，用2-3倍树脂体积的3-4%的氢氧化钠，45-60分钟从上到下通完。然后用去离子水冲洗至出水中性即可。
SQD-729 resin is usually used in single column. When the conductivity or the UN value of the water, after the combined treatment, is over the required limit, the resins are exhausted. The exhausted SQD-729 is regenerated by passing 2-3BV of 3-4% NaCl through the resin in 45-60 min from top to bottom. Then wash with DI water until pH of the efflueant close to neutral. Then the resin is ready for next run.
树脂动力学性能(Hydraulic Characteristics)
包装(Packing)
25Kg、25L编织涂膜袋，或1立方大包。
25Kg, 25L woven coating bag, or 1 cubic bag.
苏青SQ-681和SQ-742己内酰胺精制专用树脂
苏青SQD-777脱色专用树脂
苏青SQD-432钴镍吸附专用树脂
DTF系列淀粉糖专用分离树脂