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Critical Overview of Textural Characterization of Zeolites by Gas Adsorption
(Springer, 2020)
Porous materials with pores within molecular size are essential to solve several technological problems taking advantage of their textural properties related to their exposed surface and porosity. Among these materials, ...
Synthesis and textural characterization of a templated nanoporous carbon from MCM-22 zeolite and its use as adsorbent of amoxicillin and ethinylestradiol
(Springer, 2014-09)
A templated nanoporous carbon was obtained from a zeolite MCM-22 type. The study about their textural properties was carried out by means of adsorption isotherms of nitrogen and carbon dioxide at 77 and 273 K, respectively. ...
Dandelion-like microspherical MCM-22 zeolite using BP 2000 as a hard template
(American Chemical Society Inc, 2018-06)
The chemistry between layered MWW zeolite and carbon black pearls (BP 2000) as an inexpensive hard template was investigated to develop a rational one-pot synthesis of MCM-22 microspheres. The characterization results ...
Synthesis and characterization of Al-TON zeolite using a Dialkylimizadolium as structure-directing agent
(Universidade Federal de São Carlos, 2016-11)
In this work, the synthesis of zeolites using 1-butyl-3-methylimidazolium chloride [C4MI]Cl as a structure-directing agent was investigated. The organic cation shows effectiveness and selectivity for the syntheses of TON ...
Ferrierite zeolite passivation and its catalytic application in toluene disproportionation
Ferrierite zeolites have been prepared, characterized and evaluated in toluene disproportionation. The
materials were synthesized using a hydrothermal method. A passivation process (chemical liquid deposition,
CLD) was ...
Basic treatment in natural clinoptilolite for improvement of physicochemical properties
(MDPI Multidisciplinary Digital Publishing Institute, 2018-12-14)
Natural zeolites are low in cost and exhibit interesting properties for applications in adsorption and catalysis. However, the fact that they are natural materials, not obtained in pure form, and can incorporate various ...
Síntese e caracterização de Zeólita NaY
(Universidade Tecnológica Federal do ParanáCuritibaBrasilBacharelado em QuímicaUTFPR, 2017-12-06)
Zeolites are microporous crystalline materials with three-dimensional structure composed of [SiO4]4- and [AlO4]5-. The synthesis of zeolites has been widely researched because its application is very large due to its ...
Transformação de cicloexano e metilcicloexano sobre as zeólitas HMCM-22, HZSM-5 e HUSY rendimento e seletividade a hidrocarbonetos leves
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQ, 2009-03-27)
In Brazil, the oil production with high naphthenic hydrocarbon (HC) content and the hard growing for the petrochemical market have led to the necessity to maximize the production of light HC (in special light olefins). The ...
Síntese e caracterização de membranas zeolíticas tipo mfi e aplicação em separação de aromáticos
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em QuímicaFísico-Química; Química, 2013-07-22)
The synthesis of MFI-type zeolite membranes was carried by the process in situ or
hydrothermal crystallization. We studied the homogenization time of the room
temperature and gel filtration just before the crystallization ...