SciELO - Scientific Electronic Library Online

 
vol.27 issue49Pozzolcinic benefit of fly ash and steel slag blends in the development of uniaxial compressive strength of lime stabilized soilGeneration of electric pomer and air conditioning by cogeneration: a proposal for energy saving author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Revista Facultad de Ingeniería

Print version ISSN 0121-1129

Abstract

MACIAS-LOPEZ, Mario Alberto; RIOS-REYES, Carlos Alberto  and  CASTELLANOS-ALARCON, Oscar Mauricio. Structural analysis of the JßW (Na-J, barrer and white) zeotype obtained from kaolinite-rich clay. Rev. Fac. ing. [online]. 2018, vol.27, n.49, pp.23-33. ISSN 0121-1129.

The JBW zeolite was prepared from hydrogels under hydrothermal conditions by alkaline reaction, using NaOH as activating agent. The synthetic zeotype was studied by analytical techniques such as X-ray powder diffraction, scanning electron microscopy, Fourier transformed infrared spectroscopy and solid-state 29Si and 27Al Magic angle spinning nuclear magnetic resonance. Crystallographic data revealed that the JBW structure can be described by the orthorhombic space group Pna2 1 , with unit cell parameters a=16.409(2) Å, b=14.966(2) Å and c=5.2154(5) Å.

Keywords : hydrogels; JBW structure; orthorhombic; space group; unit cell; zeotype.

        · abstract in Spanish | Portuguese     · text in English     · English ( pdf )