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Effect of bentonite binder on adsorption and cation exchange properties of granulated nano NaY zeolite
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Effect of bentonite binder on adsorption and cation exchange properties of granulated nano NaY zeolite

Amir, C

Effect of bentonite binder on adsorption and cation exchange properties of granulated nano NaY zeolite

Amir, C ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.4028/www.scientific.net/AMR.335-336.423
  3. Abstract:
  4. In order to investigate the effect of bentonite binder on adsorption and cation exchange properties of granulated nano NaY zeolite, the adsorption of Xe and N 2 and removal of Sr 2+ ion from aqueous solution was studied. The results showed that increase in bentonite content of granules from 20 to 40 weight percent caused increase in the rupture load of granules by 232%, decrease in BET surface area by 66% and lower the Sr 2+ uptake percentage by 35%. The Henry's law constant, heat of adsorption, effective crystal diffusivity as well as activation energy of diffusion of Xe over granulated nano NaY with 25% bentonite was also measured by pulse chromatography method. Obtained results were compared with similar results of binderless micron sized NaY material. Results indicated that although the adsorption of xenon on the binder of bentonite was negligible, the diffusion resistance created by this binder was significant such that the effective crystal diffusivity in the granules with 25% binder determined to be 4302 percent lower than the granules with no binder
  5. Keywords:
  6. Adsorption ; Bentonite ; Cation exchange ; Nano NaY zeolite ; BET surface area ; Cation exchange properties ; Diffusion resistance ; Heat of adsorption ; Henry's Law constant ; NaY zeolite ; Pulse chromatography ; Weight percent ; Activation energy ; Binders ; Diffusion ; Granulation ; Ion exchange ; Manufacture ; Positive ions
  7. Source: Advanced Materials Research ; Volume 335-336 , 2011 , Pages 423-428 ; 10226680 (ISSN) ; 9783037852460 (ISBN)
  8. URL: http://www.scientific.net/AMR.335-336.423