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Citation: XU Ying-Jun, DING Yong-Sheng, GONG Wei-Min, CHEN Jie, SHENG Xue-Qin, YU Zhi-Wei, XU Xiao-Lei. Preparation of a Cationic Natural Polymer Flocculant[J]. Chinese Journal of Applied Chemistry, ;2004, 21(5): 498-501. shu

Preparation of a Cationic Natural Polymer Flocculant

1.
a College of Environmental Science & Engineering, Dalian Maritime University, Dalian 116026;
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b Institute of Material & Technology, Dalian Maritime University, Dalian 116026

Corresponding author: DING Yong-Sheng,
Received Date: 4 July 2003
Available Online: 23 November 2003
Fund Project: 大连海事大学基金(200131)资助项目 (200131)

A novel cationic natural organic polymeric flocculant DXSL-I was prepared using corn-core-powder(QCCP, φ<0.147 mm) as matrix and triethylamino-epoxypropane(TAEP prepared from triethylamine and epichlorohydrin) as cationic reagent. The reaction was initiated by H₂O₂-FeSO₄. The preparation conditions were optimized as follows:2.0 g QCCP was at first alkalified with 0.6 g NaOH in 8 mL H₂O(0.1%(mass fraction) NaCl as depressor) at 40℃ in 60 min, then etherified with 8 mL TAEP at 55℃ for 3.5 h in the presence of ω(H₂O₂-FeSO₄) 0.01%. Experiment showed that the efficiency of etherization was 83%. The transparency of Kaoline turbid solution treated by drops of DXSL-Ⅰ over 5 min could reach up to 95% in the midst.
- corn-core,
- natural organic polymer,
- cationic flocculant
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