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    • 3. 发明授权
    • Alkylaminophosphonic chelating resins, their preparation and use in
purifying brines
    • 烷基氨基膦酸螯合树脂,其制备和用于净化盐水
    • US4818773A
    • 1989-04-04
    • US671720
    • 1984-11-15
    • Michel A. G. CornetteJack CarbonelJacques E. A. FrancPaul D. A. Grammont
    • Michel A. G. CornetteJack CarbonelJacques E. A. FrancPaul D. A. Grammont
    • C08F8/40
    • C08F8/40
    • New macroporous alkylaminophosphonic chelating resins which exhibit excellent mechanical stability and strength and good chemical stability are characterized by having an apparent density of 0.35 to 0.425 g/ml, a granulometry smaller than 0.8 mm, a water retention of 50 to 60 percent in the acid form, a porosity of 800 to 1100 mm.sup.3 g, a total theoretical capacity for the fixation of calcium ions of not greater than 31 g/l of resin in the sodium form and an osmotic resistance such that more than 90 percent of the beads are intact after 30 shocks. The high resistance to osmotic shock combined with an adequate exchange capacity exhibited by the new resins makes them particularly suitable for use in highly concentrated solutions, such as concentrated electrolytic brines.A simple, effective, and economical procedure is described which makes it possible to eliminate, in the form of complexed cations, the impurities contained in the brines used for the electrolytic production of chlorine or alkali metals in membrane cells or diaphragm cells and for the electrolytic production of chlorates.
    • 表现出优异的机械稳定性和强度以及良好的化学稳定性的新型大孔烷基氨基膦酸螯合树脂,其表观密度为0.35〜0.425g / ml,粒度小于0.8mm,酸形式的保水率为50〜60% ,孔隙度为800〜1100mm 3 g,钙离子固定不超过31g / l的钠离子型树脂的总理论容量和耐渗透性,使得90%以上的珠粒在30 冲击。 高耐渗透冲击与新型树脂所具有的充分交换能力使其特别适用于高浓度溶液,如浓缩电解盐水。 描述了一种简单,有效和经济的方法,其可以以复合阳离子的形式消除用于电解生产膜电池或隔膜电池中的氯或碱金属的盐水中的杂质和电解 生产氯酸盐。