钙碱浓度对磺酸盐共聚物性能的影响  

Effects of Ca^(2+) concentration and alkalinity on the capacities of sulphonate copolymer

作　　者：胡艳华[1] 冯婕[1] 郦和生[1] 

机构地区：[1]中国石化北京化工研究院燕山分院,北京102500

出　　处：《工业水处理》2014年第6期59-62,共4页Industrial Water Treatment

摘　　要：通过静态容量瓶法研究了不同钙碱浓度条件下,磺酸盐共聚物AA/AMPS同时稳定Zn2+和PO43-的性能。实验结果表明:钙碱浓度对磺酸盐共聚物稳定PO43-和Zn2+性能的影响均较大。Ca2+介于400~600 mg/L为磺酸盐共聚物对PO43-稳定性的拐点,Ca2+介于600~800 mg/L为磺酸盐共聚物对Zn2+稳定性的拐点;当Ca2+浓度低于拐点时,磺酸盐共聚物对2种离子的稳定性均较好,且受钙碱浓度影响较小;当Ca2+浓度高于拐点时,磺酸盐共聚物对2种离子的稳定性均较差。由于磺酸盐共聚物对钙碱的稳定性能较差,实际应用时需单独投加阻碳酸钙垢性能较好的水处理剂。By the static volumetric flask method,the simultaneous stabilizing capacities of sulphonate copolymerAA/AMPS for PO43- and Zn2＋ has been studied under different Ca2＋ concentration and alkalinity conditions. The re-sults show that the effects of Ca2＋ concentration and alkalinity on the stabilizing capacities of sulphonate copolymerfor both PO43- and Zn2＋ are comparatively larger. Ca2＋ concentration between 400-600 mg/L is the inflection point ofthe stabilizing capacity of sulphonate copolymer for PO2-. And, Ca2＋ concentration between 600-800 mg/L is the in-flection point of the stabilizing capacity of sulphonate copolymer for Zn2＋. When Ca2＋ concentration is below the in-flection point, the stabilizing capacities of sulphonate copolymer for both PO43- and Zn2＋ are comparatively good.Meanwhile, Ca2＋ concentration and alkalinity has less influence on the stabilizing capacity of sulphonate copolymer.When Ca2＋ concentration is higher than the inflection point,the stabilizing capacities of sulphonate copolymer for PO43- and Zn2＋ are poor. Since the stabilizing capacity of sulphonate copolymer for Ca2＋ concentration and alkalinity ispoor,it is necessary to separately add a kind of water treatment agent which has good scale inhibiting capacity forcalcium carbonate, in actual application.

关 键 词：磺酸盐共聚物 钙碱浓度 Zn2+ PO43- 稳定性 

分 类 号：TQ085[化学工程]