供应 活性氧化铝脱氟剂

Activated Alumina Defluorination Agent

活性氧化铝脱氟剂为白色球状多孔性颗粒，粒度均匀，表面光滑，机械强度大，吸湿性强，吸水后不胀不裂保持原状，产品无毒、无味、无臭，不溶于水及有机溶剂。

氟是动物与人体所必需的微量元素之一。成人每天正常摄取量以2～3mg 为宜，过多或过少都会带来疾病，因此饮用水除氟显得非常重要。活性氧化铝强度好，耐磨，使用寿命长，性能稳定，除氟容量高，除氟后的水质符合国家卫生标准，是水处理不可或缺的材料之一。

活性氧化铝具有两性吸附的性质，通过调节溶液的PH值，可以分离溶液中的阴离子。活性氧化铝除氟设备与离子交换器类似，为获得较高的除氟容量，需把PH值调低，PH值为5.5时活性氧化铝吸附氟速率。为了满足水质要求和控制腐蚀，一般来说PH值呈微酸性即可。活性氧化铝除氟类似于阴离子交换树脂，但对氟离子的选择性比阴离子树脂大。远影活性氧化铝广泛应用于高氟地区饮用水的除氟处理，烷基苯生产中循环烷烃的脱氟剂。

较小的粒径可以增大比表面积，使活性氧化铝和水充分接触，例如通常使用的0.4-1.2mm、1-3mm，其比表面积一般都在320 m2/g以上。高的比表面积意味着其内部微孔数量巨大，可以保证对水中的氟离子有很强的吸附能力。当原水的PH值和碱度较低时，除氟容量较高，每立方米活性氧化铝吸氟6400克，吸氟容量大于4.0mg/g，而且其价格比合成树脂还低。本品还可用于饮用水及工业装置的除氟、脱砷、污水脱色、除臭等。

Yuanying activated alumina defluorination agent is white spherical porous particles, uniform particle size, smooth surface, high mechanical strength, hygroscopicity strong, does not crack and inflate after absorbing water. It is non-toxic, tasteless, odorless, insoluble in water and organic solvents.

Fluorine is one of the trace element necessary for animal and human. Adult normal daily intake should be 2~3 mg, too much or too little can lead to disease, so defluorination is important in drinking water. Activated alumina has good strength, good abrasion resistance, long service life, stable performance, high defluorination capacity, after defluorination the water quality accords with national health standards, so activated alumina is one of the indispensable material in water treatment.

Activated alumina has amphoteric adsorption properties, by regulating the PH value of aqueous solution, anions in aqueous solution can be detached. Activated alumina defluorination equipment is similar to ion exchanger, in order to obtain high defluorination capacity, need to lower PH value, while the PH value is 5.5 activated alumina adsorption rate of fluorine is the largest. In order to meet the quality requirement and control corrosion, PH values should be slightly acidic. Activated alumina defluorination is similar to the anion exchange resin, but the selectivity for fluoride ion is larger than the anion resin. Activated alumina widely used for fluoride removal in high fluoride area, cyclic alkanes defluorination agent among alkylbenzene production.

Smaller particle size can increase specific surface area, make a fully contact between activated alumina and water. For example, commonly used 1-3 mm, 0.4-1.2 mm, their specific surface area are generally more than 320 m2/g. High specific surface area means huge number of micropore, it can ensure a strong adsorption of fluoride ion in water. When raw water PH value and alkalinity is lower, defluorination capacity of activated alumina is higher, fluoride absorption of per cubic meter activated alumina is 6400 grams, fluoride absorption capacity is greater than 4.0mg/g, and the price is lower than synthetic resin. This product can also be used for dearsenification, wastewater decolorizing, deodorizing, etc.​