Preparation of an amphoteric flocculant having both high polymer content and low viscosity and its polymerization kinetics

Shenwen Fang; Manlin Wang; Zipei Xu; Lei Zhai; Xiujun Wang; Yan Xiong

doi:10.1016/j.cjche.2018.03.002

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Preparation of an amphoteric flocculant having both high polymer content and low viscosity and its polymerization kinetics

Separation Science and Engineering | Updated：2026-01-06

- Preparation of an amphoteric flocculant having both high polymer content and low viscosity and its polymerization kinetics
- Chinese Journal of Chemical Engineering Vol. 27, Issue 1, Pages: 130-135(2019)
- Affiliations：
  
  1. 2 Oil & Gas Applied Chemistry Key Laboratory of Sichuan Province,Chengdu,China,610500
  2. 3 Beijing Research Center of China National Offshore Oil Corporation,Beijing,China,100027
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.03.002
  CLC：
- Published：2019
- Accepted：
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Shenwen Fang, Manlin Wang, Zipei Xu, Lei Zhai, Xiujun Wang, Yan Xiong. Preparation of an amphoteric flocculant having both high polymer content and low viscosity and its polymerization kinetics[J]. Chin.J.Chem.Eng., 2019, 27(1): 130-135.
DOI：

Shenwen Fang, Manlin Wang, Zipei Xu, Lei Zhai, Xiujun Wang, Yan Xiong. Preparation of an amphoteric flocculant having both high polymer content and low viscosity and its polymerization kinetics[J]. Chin.J.Chem.Eng., 2019, 27(1): 130-135. DOI： 10.1016/j.cjche.2018.03.002.

摘要

Abstract

It is not easy for liquid cationic flocculant diallyldimethyl-ammonium chloride (DM) homopolymer to simultaneously exhibit both low viscosity and high polymer content

which limited its application in offshore oilfield. In this paper

sodium allylsulfonate (XS) and sodium formate were used in the aqueous solution polymerization of DM. An amphoteric flocculant (PDMXS) with the properties of high polymer content (about 55 wt%) and low viscosity (efflux time measured by an Apply 4 viscometer was less than 100 s) was prepared. The optimum reaction conditions were identified as follows:the mass ratio of XS/DM was 10 wt%

the concentration of sodium formate was 2000 mg·L

-1

reaction temperature was 55℃

the concentration of KPS was 0.5 wt% and the reaction time was 4 h. The polymerization kinetics was discussed. The results showed that R

∝[M

]

1.97

]

0.68

[CTA

]

0.71

and the apparent activation energy was 72.55 kJ·mol

-1

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