Abstract:

Useful solvents have been recovered from the waste itaconic acid by decompressing and distilling at 2.00 kPa vacuum degree and at 40 ℃. The residua are neutralized with sodium hydroxide,protected with nitrogen, and initiated by 5% potassium persulfate at 100～102 ℃ for 10～12 hours in water solution. As a result,the itaconic acid polymer is prepared.Scale inhibition performance of the polymer in water solution containing 240 mg/L of Ca²⁺ and 732 mg/L of HCO₃^-has been studied.

Key words: itaconic acid, polymerization, scale inhibition performance

摘要：

在真空度为 2 .0 0kPa、4 0℃下从衣康酸废液中减压蒸馏回收有用溶剂,剩余组分经NaOH中和,在氮气保护、5 % (质量分数 )过硫酸钾引发下,在 10 0～ 10 2℃水溶液中聚合 10～ 12h,制得衣康酸聚合物,并研究它在含Ca²⁺ 2 4 0mg/L、HCO₃^-732mg/L配制水中的阻垢性能.

关键词: 衣康酸, 聚合反应, 阻垢性能

CLC Number: 

• TQ085+.412