产品详细

SQD-749是一种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,可有效去除水中的醛，与SQD-61 / SQD-92 / SQD-729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-749 is a polystyrene-based strong anion exchange resin. It is specially designed for therecycling water treatment in the ethylene glycol (MEG) production. This resin can selectively and effectively remove aldehyde from the recycling water. Combined with one or all of SQD-61 /SQD-92 / SQD-729, the UV value of the treated water could be largely increased, so that the the quality of ethylene glycol obtained could also be largely increased.

▲企业标准(Enterprise Standard)
Q/320281NAN 41-2019
▲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-749树脂再生时，用2-3倍树脂体积的8-10%的亚硫酸氢钠，45-60 分钟从上到下通完。然后用3-4倍树脂体积的去离子水冲洗即可。

SQD-749 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-749 is regenerated by passing 2-3BV of 8-10% NaHSO3through the resin in 45 60 min from top to bottom. Then wash with 3-4BV of DI water. Then the resin is ready for next run.

▲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.