Results 1 to 10 of about 1,864 (159)
Diagramas de eslabilidad de zeolitas. I. Zeolitas en ambientes confinados alcalinos
Estudios Geologicos, 1989 Se estudia la estabilidad de las zeolitas que aparecen en ambientes confinados salinos. Los cálculos de equilibrio se realizan usando valores de energía libre de Gibbs estimados teóricamente.
A La Iglesia
exaly +8 more sources
Avaliação da capacidade dessecante de duas zeolitas obtidas da modificação hidrotérmica de um caulim vermelho do Ceará, Brasil [PDF]
Ceramica, 2002 As zeolitas P e phillipsita obtidas previamente, a partir de reações hidrotérmicas em meio alcalino de um caulim vermelho do Ceará, foram submetidas a avaliações quanto à capacidade dessecante aplicadas ao solvente acetato de etila contendo quantidades ...
J. H. S Girão +2 more
exaly +3 more sources
Estudios Geologicos, 1998 La actividad hidrotermal tardía que se produjo en el plutón granítico de La Cabrera desarrolló en algunas cavidades miarolíticas y pegmatitas una serie de asociaciones minerales de temperatura decreciente.
A La Iglesia
exaly +3 more sources
Applied Organometallic Chemistry, Volume 37, Issue 1, January 2023., 2023 The reaction between 4‐tpt and Cu(hfa)2 yields two different 1D MOFs: [(Cu(hfa)2)2(4‐tpt)]n (1) and [Cu(hfa)2(4‐tpt)]n (2), as a function of the solvent used. The crystal structure of (2) indicates that the packing of the chains defines accessible channels. The microporous character of (2) is confirmed by N2 physisorption, with a surface area of 190 m2
Núria Portolés‐Gil +5 more
wiley +1 more source
Nanoparticles of γ‐Sitoesterol and Ag on Clinoptilolite Zeolites
Journal of Nanomaterials, Volume 2021, Issue 1, 2021., 2021 This work reports, the obtainment and stabilization of organic nanoparticles (γ‐sitosterol) and Ag cations on the external area of Ca‐clinoptilolite zeolite (Z17) are presented. The novelty of the present study lies in the formation and stabilization of nanoparticle organic molecules (γ‐sitosterol) and inorganic cations (Ag) on the external area of Ca ...
Miguel Angel Hernandez +7 more
wiley +1 more source
Mitigação das emissões de amônia por zeólitas naturais durante a compostagem de dejetos de suínos
Pesquisa Agropecuária Brasileira, 2014 O objetivo deste trabalho foi avaliar a eficiência das zeólitas naturais clinoptilolita e estilbita em mitigar as perdas de amônia (NH3) na fase inicial da compostagem de dejetos líquidos de suínos (DLS).
Diego Antonio Giacomini +8 more
doaj +1 more source
Journal of Nanomaterials, Volume 2017, Issue 1, 2017., 2017 Hybrid materials based on MCM‐41 silica and Y‐zeolites with a variable Si/Al ratio and an appropriate countercationic composition were prepared by impregnating inorganic substrates with an organic extract. The organic phase was previously characterized by GC‐MS and IRTF, while XRD, SEM, TEM, N2‐physisorption, and TPD of NH3 were used to analyze the ...
Miguel Angel Hernández +6 more
wiley +1 more source
Journal of Nanomaterials, Volume 2016, Issue 1, 2016., 2016 Our research group has developed a group of hybrid biomedical materials potentially useful in the healing of diabetic foot ulcerations. The organic part of this type of hybrid materials consists of nanometric deposits, proceeding from the Mexican medicinal plant Tournefortia hirsutissima L., while the inorganic part is composed of a zeolite mixture ...
Miguel Ángel Hernández +6 more
wiley +1 more source