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2002•Chemical engineerRequires access

Synthesis of Starch-Modified Cationic Flocculant

Cai Qing-hai

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Abstract

The reaction conditions of synthesis of starch-modified cationic flocculant was studied,using the ceric ammonium nitrate and peroxydisufate nitrate(CAN-APS) initiation system by means of crosstesr in the paper.The results showed optimal conditions of graft copolymer are CAN-APS 1.2mol/L,the material ratio of acrylamide(AM) and starch(St)2∶1(mass ratio),temperature 50℃ and time 3h.The condition of cation∶acrylamide∶formaldehyde∶dimethylamine 1∶1∶3(mass ratio),temperature 50℃,and time 2h.

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What this paper is about

The reaction conditions of synthesis of starch-modified cationic flocculant was studied,using the ceric ammonium nitrate and peroxydisufate nitrate(CAN-APS) initiation system by means of crosstesr in the paper.The results showed optimal conditions of graft copolymer are CAN-APS 1.2mol/L,the material ratio of acrylamide(AM) and starch(St)2∶1(mass ratio),temperature 50℃ and time 3h.The condition of cation∶acrylamide∶formaldehyde∶dimethylamine 1∶1∶3(mass ratio),temperature 50℃,and time 2h.

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Available abstract

The reaction conditions of synthesis of starch-modified cationic flocculant was studied,using the ceric ammonium nitrate and peroxydisufate nitrate(CAN-APS) initiation system by means of crosstesr in the paper.The results showed optimal conditions of graft copolymer are CAN-APS 1.2mol/L,the material ratio of acrylamide(AM) and starch(St)2∶1(mass ratio),temperature 50℃ and time 3h.The condition of cation∶acrylamide∶formaldehyde∶dimethylamine 1∶1∶3(mass ratio),temperature 50℃,and time 2h.

Key concepts: Ceric ammonium nitrate, Cationic polymerization, Dimethylamine, Starch, Acrylamide, Formaldehyde, Chemistry, Copolymer

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