http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Ehsan Sadeghi Pouya,Hossein Abolghasemi,Mohamad Esmaieli,Hooman Fatoorehchi,Seyed Jalaledin Hashemi,Alireza Salehpour 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.31 No.-
The performance of modified vermiculite for the batch adsorption of benzoic acid from aqueous solutionwas studied. Grinding treatment enhanced the ion exchange ability of natural vermiculite. Cetyltrimethylammonium bromide improved the adsorptive characteristics of ground vermiculitebetter than cetylpyridinium bromide. The optimum conditions were obtained as the adsorbent dosage of0.5 g/50 mL, initial pH of 3.5 and contact time of about 140 min. The pseudo-second-order modelprovided a good correlation of the kinetic data. The equilibrium data were well described by theLangmuir and Temkin equations. Thermodynamically, it was concluded that the process is endothermicand spontaneous.