INORGANICCHEMICALSINDUSTRY ›› 2016, Vol. 48 ›› Issue (10): 73-.

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Optimization of preparation of nano CaO based sorbents from phosphogypsum

 ZHOU   Jing, ZOU  Hong-Tao, XING   Yan, LI   Feng   

  1. Department of Chemistry and Chemical Engineering,Qiannan Normal College for Nationalities,Duyun 558000,China
  • Online:2016-10-10 Published:2016-10-08

Abstract: The preparation process parameters of nano CaO based CO2 sorbents(reaction time,reaction temperature,CO2 flux,stirring speed,and impurity content) were optimized.The influence of particle size of nano CaO based CO2 sorbents on the adsorption performance was investigated.The optimized preparation process parameters were as follows:reaction time was 50 min,reaction temperature was 30 ℃,CO2 flux was 251 mL/min,and the slower stirring rate and the less impurity content, the better.The smaller of particle size of nano CaO based CO2 sorbents was,the greater the adsorption capacity,the faster adsorption rate,and the higher stability was too.

Key words: phosphogypsum, nano CaO, sorbents, Optimization

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