摘要
以L 天冬氨酸为原料合成了聚天冬氨酸 ,采用静态阻垢评定法、锌试剂分光光度法和测定透光率等方法对聚天冬氨酸进行了阻碳酸钙结垢、稳定锌离子和分散氧化铁能力的测定。结果表明 :聚天冬氨酸不仅具有良好的阻碳酸钙垢的性能 ,对锌离子也有一定的稳定作用 ,而分散氧化铁的能力则均好于聚马来酸和聚丙烯酸 。
A sodium polyaspartate is synthesized in laboratory with L aspartic acid as starting material and structurally identified by H 1 NMR and C 13 NMR data. It is a mixture of α and β isomers(23.97/76.03) with M w=4 000. Some scale inhibition properties are experimentally investigated. It is shown that the inhibiting rate of this polyaspartate preparate for CaCO 3 is a little higher, its dispersing capacity for Fe 2+ ions is much better and its stabilizing capacity for Zn(OH) 2 is a little worse than that of polymaleic and polyacrylic acids. Polyaspartate might be used as a good scale inhibitor in cooling water treatments.
出处
《油田化学》
CAS
CSCD
北大核心
2001年第2期181-183,共3页
Oilfield Chemistry
关键词
聚天冬氨酸
合成
阻垢性能
水处理剂
阻垢剂
工业冷却水
Polyaspartate
Synthesis
Scale Inhibiting Properties
Water Treating Agent
Scale Inhibitor
Inducstrial Cooling Water
