新型绿色阻垢剂ESA/AA/AMPS的合成及性能研究

Synthesis and performance of a new type of green scale inhibitor ESA/AA/AMPS copolymer

以马来酸酐为原料,双氧水为氧化剂,钨酸钠为催化剂合成了中间体环氧琥珀酸(ESA),再以环氧琥珀酸(ESA)、丙烯酸(AA)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为原料,过硫酸铵为引发剂,合成了新型绿色阻垢剂ESA/AA/AMPS三元共聚物。用静态阻垢法评价了该产品的综合阻垢性能和稳锌能力,结果表明:ESA/AA/AMPS三元共聚物阻碳酸钙垢的效果与聚环氧琥珀酸(PESA)基本相当,而阻磷酸钙垢、硫酸钙垢及稳锌能力均明显优于PESA。

With maleic anhydride as raw material, hydrogen peroxide as oxidan, and sodium tungstate as catalyst, the interme- diate epoxy succinic acid（ESA） is synthesized. Then, with epoxy succinate （ESA）, acrylic acid （AA） and 2-acrylamido-2- methyl propane sulfonic acid （AMPS） as raw materials, and ammonium persulfate as initiator, a new type of green scale inhibi- tor ESA/AA/AMPS copolymer is synthesized. The overall inhibiting performence and the capacity of stabilizing zinc are evalu- ated by the static scale method. The test results show that ESA/AA/AMPS copolymer＇s inhibiting ability for calcium carbonate scale is roughly equal to PESA, and its ability in resisting calcium phosphate scale, calcium sulfate scale and the capacity of sta- bling zinc are significantly better than PESA.