常用有机膦酸盐静态阻垢性能对比实验研究  

Comparison of static scale-inhibiting properties of typic organo-phosphonate

作　　者：徐华山[1] 任玉芬[1] 贺玉晓[1] 郑红娟 

机构地区：[1]河南理工大学资源环境学院,焦作454000 [2]北京中搜网络技术有限公司苏州分公司,苏州215000

出　　处：《环境工程学报》2007年第2期6-10,共5页Chinese Journal of Environmental Engineering

基　　金：国家高技术研究发展计划"863"项目(2002AA601022)

摘　　要：工业冷却水循环利用过程中，随浓缩倍数提高，循环水水质向高碱度、高硬度、高pH值和高温方向发展，结垢倾向严重。聚磷酸盐和有机膦酸盐是性能优良的钙垢抑制剂，但在高温、高浓缩倍数条件下时，有机膦酸盐类不见得均可达良好的水垢抑制效果。分别计算了氨基三亚甲基膦酸（ATMP）、羟基亚乙基二膦酰（HEDP）、2-膦酸丁烷-1，2，4-三羧酸（PBTC）和六偏磷酸钠（NaPO3）。在循环水浓缩倍数为1～5倍，温度为80℃时在不同投加浓度下的阻垢率。结果表明，有机膦酸盐和聚磷均有临界值效应；有机膦酸盐的阻垢性能优于聚磷酸盐；ATMP和HEDP在低浓缩倍数下有较高的阻垢率，随着硬度、碱度、pH值的提高，阻垢率下降明显；PBTC的水垢抑制剂功效明显优于其他有机膦酸盐，PBTC可应用在较宽广的水质操作范围，增加系统的操作安全性。During the usage of the industrial cooling water, as the concentration multiple increases, it enriches alkalinity, hardness, pH and temperature and scales seriously. Polyphosphate and organo-phosphonate are good calcium scale inhibitors. But under high temperature and highly enriched concentration of circulating water, not all organo-phosphonates can reach the same efficiency of scale prevention. The paper calculated the scale preventing efficiency of amino （ trismethyl enephosphonie acid） （ATMP） , 1-hydroxyethylidene-1,1-diphosph-onieaeid （HEDP） , 2-phosphonobutane-1,2,4-triearboxylie acid （ PBTC ） and （ NaPO3 ） 6 when the concentration multiples are from 1 to 5, the temperature is 80℃ and their consistencies are different. The results show that both organo-phosphonate and polyphosphate have the threshold effect; organo-phosphonate scaling preventing efficiency is superior to polyph-osphate ; ATMP, and HEDP in low enriched multiple have higher scaling preventing rate, while with the improving of hardness, alkalinity and pH, scaling inhibition rate drops greatly ; scale inhibition efficiency of PBTC is higher than other organo-phosphonate obviously, PBTC can be applied to broader range of water quality, increasing the security of systematic operation.

关 键 词：循环冷却水 有机膦酸盐 阻垢 

分 类 号：TQ085.412[化学工程]