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Citation: LI Feng-Yan, WANG Xie-Qing, CHEN Yong-Jun, LI Ben-Gao. Preparation of Insoluble Quaternary Ammonium Bactericides Based on Silica Gels[J]. Chinese Journal of Applied Chemistry, ;2001, 18(6): 496-497. shu

Preparation of Insoluble Quaternary Ammonium Bactericides Based on Silica Gels

1.
a Department of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102600;
2.
b Beijing Research Institute of Petrochemical Processing, Beijing

Received Date: 10 July 2000
Available Online: 19 September 2000

The insoluble quaternary ammonium bactericide was synthesized in two steps using silica gel as a carrier. The silica gels first reacted with 3-chloropropyltrimethoxysilane to give an intermediate, the chloropropyl groups on which then reacted with dimethyl tetradceylamine to give the quaternary ammonium bactericides. The bactericidal rate of the product against heterotrophic bacteria was 99% as tested in vitro.
- silica gel,
- insoluble bactericide,
- quaternary ammonium salt
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