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Citation: YAO Wen-Jun, ZHANG Pei-Ping, MA Li-Yan, SUN Yi-Ting. Organic Activation and Adsorption of Pyrophyllite for Hydroquinone[J]. Chinese Journal of Applied Chemistry, ;2008, 25(6): 689-692. shu

Organic Activation and Adsorption of Pyrophyllite for Hydroquinone

1.
College of Material Science and Engineering, Jilin University, Changchun 130026

Corresponding author: ZHANG Pei-Ping,
Received Date: 30 June 2007
Available Online: 25 September 2007
Fund Project: 中国建材总公司(20050106)资助项目 (20050106)吉林大学研究生创新中心(601044)资助项目 (601044)

Different organic reagents were selected to modify the pyrophyllite with wet activation technics,and the adsorption behavior of the modified pyrophyllite for polar hydroquinone in water was tested.The result states that the adsorption capacity of modified pyrophyllite powder is greatly increased in comparison with that of natural pyrophyllite.The modified pyrophyllite can adsorb 83.1% of hydroquinone molecules,while natural pyrophyllite did only 26.8% of them.The optimized conditions of nature pyrophyllite adsorbing hydroquinone in water are particle size less than 7.9 μm,ratio of pyrophyllite to hydroquinone solution 1:8,pH value of solutions 6.05~6.25 and reacting time 25 min.The optimized conditions of activation are reagents quantity 1%,temperature 75℃ and reacting time 2 h.The optimized conditions of modified pyrophyllite adsorbing hydroquinone in water are ratio of pyrophyllite to hydroquinone solution 1:8,pH value of solution 6~7 and reacting time 30 min.Meanwhile,XRD,IR and SEM methods were used to characterise the structure of the sample,and the mechanisms of modification were discussed.
- pyrophyllite,
- hydroquinone,
- organic activation,
- adsorption
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