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2020-11-8离子交换树脂的各项介绍
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2020-11-7说说D001大孔强酸性阳离子交换树脂的物理结构
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2020-11-6D301大孔弱碱性阴离子交换树脂的交换容量介绍
螯合树脂D409
D409螯合树脂是在大孔隙苯乙烯—二乙烯交联共聚球体上引进胺基磷酸基螯合基因的离子交换树脂产品，简称D409螯合树脂，D409螯合树脂对二价金属离子具有良好的交换吸附性能，对Ca2+,Mg2+等二价金属离子的交换吸附远大于对Na2+离子的交换吸附。因而，广泛用于离子膜生产烧碱装置中，精制二次食盐水溶液。 D409螯合树脂用于精制二次盐水时，建议入塔盐水的Sr2+ 含量小于0.5PPm,虽然，D409螯合树脂的耐游离氯性能较好，为延长树脂使用寿命，应尽量除去入塔盐水中的游离氯。
D409螯合树脂的主要用途：螯合树脂具有胺基磷酸型螯合基因，能有效地除去二价金属离子。目前，已广泛用于氯碱工业中，细制二次盐水。同时，还用于湿法冶金、重金属工业废水治理等环境保护行业。
D409螯合树脂的主要物化性能:
树脂母体： 大孔隙苯乙烯一二乙烯苯聚球体。
螯合功能基因： 胺基磷酸基【-NH—CH2—PO3Na2】
交换容量： （CU2+动态法）＞0.4mmol/ml-k-Na+
稳定性： 对酸碱、有机溶剂稳定
外观： 浅黄色至灰褐色球状颗粒。
湿视密度： 0.70～0.80g/ml
湿真比重（20℃）： 1.10～1.20
粒径范围： 0.30～1.2mm
粒 径： 0.35～0.55mm
均匀系数： ＜1.7
含水量： 50～65%
PH值： 精制二次盐水9.0±0.5，回收金属随金属不同而异。
体积变化： 在水中：R-H/R-Na=0.75
D409 chelate resin in the macropores styrene - divinyl crosslinking copolymerization sphere on the introduction of the amine phosphate-based chelating gene ion exchange resin product, referred to as D409 chelate resin D409 chelate resin having good divalent metal ionexchange Adsorption on Ca2 +, Mg2 + and other divalent metal ion exchange adsorption is much larger than the Na2 + ion exchange adsorption. Thus, the ion-exchange membrane are widely used in the production of caustic soda apparatus, purified secondary aqueous saline solution. D409 chelating resin, it is recommended for refined secondary brine into the tower saline Sr2 + content of less than 0.5 ppm, D409 chelating resin free chlorine-resistant properties, in order to extend the life of the resin, should be removed from the brine into the tower the free chlorine.
D409 chelating resin main purposes:
Chelating resins having aminophosphonic gene, the divalent metal ions can be efficiently removed. At present, has been widely used in the chlor-alkali industry, purified secondary brine. The same time, but also for the hydrometallurgy, heavy metals and industrial wastewater treatment and environmental protection industries.
D409 chelating resin main physical and chemical properties:
The resin matrix: large pores twelve styrene divinylbenzene poly sphere.
Chelating functional genes: amino phosphoric acid group [-NH-CH2-PO3Na2]
Exchange capacity: the (Cu2 dynamic method)> 0.4mmol/ml-k-Na +
Stability: stable pH, organic solvents
Appearance: Pale yellow to gray-brown spherical particles.
Wet apparent density: 0.70 to 0.80g/ml
Wet true specific gravity (20 ° C): 1.10 to 1.20
Particle size range: 0.30 to 1.2mm
The valid particle size: 0.35 to 0.55mm
Uniformity coefficient: <1.7
Moisture content: 50 to 65%
PH: refined secondary brine 9.0 ± 0.5, recovery of metals varies with the metal.
Volume change: in water: R-H/R-Na = 0.75
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- 下一个：高纯水混床树脂HMR-200
