知搜-全球专利检索

  1. 登录
  2. 注册
发明授权
CN106238004B 一种三聚氰胺改性磁性麻吸附剂的制备 失效 - 权利终止

一种三聚氰胺改性磁性麻吸附剂的制备
摘要：
本发明公开了一种三聚氰胺改性磁性麻吸附剂的制备方法，其特征在于，首先，将原麻进行预处理；第二步，将预处理的麻进行氧化处理；第三步将磁性微粒修饰在氧化麻上，使麻具有磁性；最后，在反应器中，按如下组成质量百分浓度加入，去离子水：72~80%，三聚氰胺：6~12%，加热溶解，磁性麻：12~20%，各组分之和为百分之百，于70±2℃恒温、搅拌、回流反应4~6h，冷却后，分别用水、乙醇洗涤、固液分离，干燥，得到三聚氰胺改性磁性麻吸附剂。该吸附剂对铀具有很高的吸附容量，既成本低又绿色环保，机械强度高，可反复使用10次以上，吸附剂容易分离。
摘要（英）：

The present invention discloses a melamine modified magnetic flax adsorbent preparation method, which is characterized by comprising: 1, pre-treating raw flax; 2, carrying out an oxidation treatment on the pre-treated flax; 3, modifying magnetic microparticles on the flax oxide to make the flax have the magnetism; and 3, in a reactor, adding 72-80% by mass of deionized water and 6-12% by mass of melamine, heating and dissolving, adding 12-20% by mass of the magnetic flax, stirring and carrying out a reflux reaction for 4-6 h at a constant temperature of 70+/-2 DEG C, cooling, washing respectively with water and ethanol, carrying out solid-liquid separation, and drying to obtain the melamine modified magnetic flax adsorbent. According to the present invention, the melamine modified magnetic flax adsorbent has advantages of high uranium adsorption capacity, low cost, green environmental protection, high mechanical strength and easy separation, and can be repeatedly used more than 10 times.

公开/授权文献
0/0