首页 | 本学科首页   官方微博 | 高级检索  
     

PBTCA及马-丙共聚物对碳酸钙垢阻垢机理的动力学研究
引用本文:朱志良,张冰如,苏耀东,倪亚明.PBTCA及马-丙共聚物对碳酸钙垢阻垢机理的动力学研究[J].工业水处理,2000,20(2):20-23.
作者姓名:朱志良  张冰如  苏耀东  倪亚明
作者单位:同济大学化学系,上海,200092
摘    要:用加晶种于过饱和溶液中的方法测定了CaCO3晶体结晶生长的动力学中的两种得到了不加阻垢剂及加阻垢剂两种条件下的结晶生长反应速率常数。结果表明,PBTCA及同济大学测试中心研制的丙烯酸马来酸共聚物(AA-MA)能明显地阻止溶液中CaCO3在晶种表面的结晶生长,研究发现,阻垢的机理主要是阻垢剂对CaCO3晶种表面具有吸附作用,从而抑制了CaCO3的结晶生长,这种吸附作用符合Langmuir等温吸附特征

关 键 词:阻垢  马丙共聚物  动力学  PBTCA  水处理  碳酸钙
修稿时间::

Kinetic study of inhibition mechanism of PBTCA and AA-MA copolymer on CaCO3 scale
ZHU Zhi-liang,ZHANG Bing-ru,SU Yao-dong,NI Ya-ming.Kinetic study of inhibition mechanism of PBTCA and AA-MA copolymer on CaCO3 scale[J].Industrial Water Treatment,2000,20(2):20-23.
Authors:ZHU Zhi-liang  ZHANG Bing-ru  SU Yao-dong  NI Ya-ming
Abstract:The growing dynamic process of CaCO 3 crystal is studied with the method of adding crystal seed to the supersaturated solution. The speed constants of crystal growing are determined under the condition of no scale inhibitors or adding scale inhibitors. It is found that the growing of crystal CaCO 3 in the solution is remarkably inhibited by PBTCA or the co polymer AA-MA. The results indicates that the possible inhibition mechanism is the adsorption of inhibitors on the surfaces of crystal CaCO 3. The adsorption of PBTCA on the crystal surfaces accords with the characters of Langmuir model, which is a kind of single molecule layer sorption. The adsorption of PBTCA on the active site of crystal surfaces inhibites the growing of the crystal CaCO 3 effectively.
Keywords:inhibition mechanism  CaCO  3  PBTCA  AA-MA copolymer  kinetic study
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号