Lewatit®MonoPlus TP 207是一种弱酸性大孔阳离子交换树脂，具有螯合亚氨基二乙酸基团，用于从弱酸性到弱碱性溶液中选择性提取重金属阳离子。以下列顺序从中和的水中除去二价阳离子（降低亲和力）：铜＆gt;钒（VO2'）＆gt;铀（UO221>铅>镍>锌>镉>钴>铁（II）>铍>锰>钙>镁>锶>钡>>钠。 Lewatit®MonoPlus TP 207的单分散，均匀粒径珠粒比具有异分散珠粒大小分布的离子交换树脂珠粒具有机械和渗透稳定性，另外它们具有优异的动力学行为，呃吸收阳离子和更好地利用能力。因此它适用于以下应用：从加工浴中选择性去除金属污染物浓缩，萃取和回收或从湿​​法冶金溶液中重金属从电镀漂洗水中回收有用金属选择性痕量去除工业金属表面精加工中的重金属即使在高钙浓度的情况下，也可以选择性去除污染地和废水中的重金属以进行饮用水生产和地下水修复Lewatit®MonoPlus TP 207选择性萃取重金属阳离子也可在络合剂存在下实现如氮化合物（例如氨，多价羧酸（如柠檬酸，葡萄糖酸，酒石酸，草酸）和磷酸盐（如多磷酸钠，二磷酸四钠）。

Lewatit® MonoPlus TP 207 is a weakly acidic, macroporous cation exchange resin with chelating iminodiaceticacid groups designed for the selective extraction of heavy metal cations from weakly acidic to weakly basic solutions. Divalent cations are removed from neutralized waters in the following order (decreasing affinity):

Copper > Vanadium (V0²') > Uranium (U0₂²1 > Lead > Nickel > Zinc > Cadmium > Cobalt > Iron (II) > Beryllium > Manganese » Calcium > Magnesium > Strontium > Barium >>> Sodium.

The monodisperse, uniform sized beads of Lewatit® MonoPlus TP 207 are mechanically and osmotically more stable than ion exchange resin beads with heterodisperse bead size distribution. Additionally they offer superior kinetic behavior which leads to faster uptake of cations and a better utilization of capacity. Therefore it is suitable for use in the following applications:

 

• the selective removal of metal contaminants from processing baths
• the concentration, extraction and recovery or heavy metals from hydrometallurgical solutions
• the recovery of useful metals from electroplating rinse waters
• the selective trace removal of heavy metals from industrial metal surface finishing effluents, even in presence of high calcium concentrations
• the selective removal of heavy metals out of contaminated ground and waste water streams for potable water production and ground water remediation

The selective extraction of heavy metal cations by Lewatit® MonoPlus TP 207 is also achieved in presence of complexing agents such as nitrogen compounds (e.g. ammonia, aliphatic and aromatic amines), multivalent carboxylic acids (e.g. citric, gluconic, tartaric, oxalic acid) and phosphates (e.g. sodium polyphosphate, tetrasodium diphosphate).

应用

化学工业;工业用水;金属工业;采矿;饮用水处理;工艺用水;净化;去除;冲洗用水;软化;废水处理;水处理;

Chemical Industry

Industrial water

Metal industry

Mining

Potable water treatment

Process water

Purification

Removal

Rinse water

Softening

Waste water treatment

Water Treatment

Synonyms

Lewatit MonoPlus TP 207

Lewatit MonoPlus TP 207 FINE

Lewatit MonoPlus TP 207 XL

Lewatit MonoPlus trial product 207

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