三种阻垢剂阻硫酸钙垢协同效应的研究  

Study on synergistic effect of three CaSO_4 scale inhibitors

作　　者：王庚平[1] 蒲瑜[1] 

机构地区：[1]甘肃省膜科学技术研究院,甘肃兰州730020

出　　处：《清洗世界》2011年第10期18-21,共4页Cleaning World

摘　　要：采用电导法研究了聚天冬氨酸(PASP)、羟基亚乙基二膦酸(HEDP)、2-膦酸基-1,2,4三羧基丁烷(PBTCA)三种阻垢剂单组分时的阻CaSO4垢性能以及二元复配、三元复配后的协同效应。考察了pH、温度等条件对二元复配物阻垢性能的影响。实验表明:二元组合除PASP和PBTCA之间存在协同效应,其余组合不存在协同效应,且ρ(PASP)∶ρ(PBTCA)为8∶2时阻CaSO4垢性能最好;三元组合阻垢性能有所提升但未超过PASP和PBTCA的二元组合,表明HDEP与PASP和PBTCA之间无协同效应;ρ(PASP)∶ρ(PBTCA)为8∶2的复配阻垢剂,其阻硫酸钙性能在温度范围为40～90℃之间随着温度升高而下降,但不受pH变化影响。The CaSO4 resistance performance of three scale inhibitors PASP, HEDP, PBTCA and their combination were determined by conductometric method. The effect of tempetature, pH on the scale inhibiting performance of two-component system was studied too. It was found that the synergistic effect of the two-component system which having ratio of p （PASP） ： p （PBTCA） as 8： 2 shows the best antiscaling performance and the scale inhibition performance lowered with the increase of temperature and the scale inhibiting performance is remain constant when pH increased from 6.0 to 9.0.

关 键 词：阻垢剂 硫酸钙 协同效应 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]