Results 301 to 310 of about 180,400 (354)
Some of the next articles are maybe not open access.
2014
Zeolite membranes are selective barriers, which can be supported or not, and prepared with well-defined aluminosilicate crystalline structures having a uniform and well-defined porous framework. Zeolites are attractive molecular sieve materials which have been used for a long time as adsorbents, catalysts, and softeners in detergents (ion-exchange ...
Julbe, Anne, Drobek, Martin
openaire +1 more source
Zeolite membranes are selective barriers, which can be supported or not, and prepared with well-defined aluminosilicate crystalline structures having a uniform and well-defined porous framework. Zeolites are attractive molecular sieve materials which have been used for a long time as adsorbents, catalysts, and softeners in detergents (ion-exchange ...
Julbe, Anne, Drobek, Martin
openaire +1 more source
Bioresource Technology, 2020
This review reports the use of zeolites in biological processes such as anaerobic digestion, nitrification, denitrification and composting, review that has not been proposed yet.
S. Montalvo +4 more
semanticscholar +1 more source
This review reports the use of zeolites in biological processes such as anaerobic digestion, nitrification, denitrification and composting, review that has not been proposed yet.
S. Montalvo +4 more
semanticscholar +1 more source
Zeolite content determination in zeolitic catalysts
Applied Catalysis, 1982Abstract A method of X-ray diffraction and one of vaporization of a liquid adsorbate were compared to determine the zeolite content in silica-alumina-NaY zeolite mixtures. For mixtures with low zeolite content, the vaporization of benzene at controlled temperature seemed to be more reliable than the X-ray diffraction method.
Ruby Cid, M.E. Konig, R. Arriagada
openaire +1 more source
2014
Zeolite X, together with zeolite Y, belongs to the family of aluminosilicate molecular sieves with a faujasite-type structure (FAU). It is characterized by the formula |(Ca, Mg, Na 2) 29 (H 2O) 240|[Al 58Si 134O 384]– FAU (International zeolite association (IZA)).
Julbe, Anne, Drobek, Martin
openaire +1 more source
Zeolite X, together with zeolite Y, belongs to the family of aluminosilicate molecular sieves with a faujasite-type structure (FAU). It is characterized by the formula |(Ca, Mg, Na 2) 29 (H 2O) 240|[Al 58Si 134O 384]– FAU (International zeolite association (IZA)).
Julbe, Anne, Drobek, Martin
openaire +1 more source
Texture of zeolites and zeolite‐containing solids
Recueil des Travaux Chimiques des Pays-Bas, 1980AbstractTexture studies, in which specific surface area and total pore volume were determined by low temperature nitrogen adsorption, were carried out on a number of porous solids, ranging from cation‐exchanged Y‐zeolites, impregnated with β‐AlF3 and copper, to steamed silica‐alumina. The zeolites were impregnated with β‐AlF3 and Cu in order to improve
L. E. Aneke +2 more
openaire +1 more source
EPR Imaging on Zeolites and Zeolite Catalysts
2018This chapter demonstrates the possibilities of using electron paramagnetic resonance (EPR) imaging as a useful tool for the characterization of diffusion and coking processes in zeolite powders and in pelletized zeolite catalysts. The measurements have been carried out by using a conventional EPR spectrometer ERS 221 and the accessory unit ZZG1 for ...
K. Ulbricht +6 more
openaire +1 more source
Geology of natural zeolites and zeolitic rocks
Pure and Applied Chemistry, 1980Present status, particularly development in the latest decade, of the geology of natural zeolites and zeolitic rocks has been overviewed. Emphases are focused on the classification of genetical occurrences and the synthesis deduced from the nature..
openaire +1 more source
Emerging applications of zeolites in catalysis, separation and host–guest assembly
Nature Reviews Materials, 2021Yi Li, Jihong Yu
semanticscholar +1 more source
Zeolite map: The new detergent zeolite
1997This paper describes the physical and chemical properties of a new zeolite, MAP, which have led to its commercialisation for use as a detergent builder. Its advantageous calcium exchange selectivity and water sorption properties are the result of unusual flexibility of the Zeolite P framework; these are delivered through engineering the framework ...
Christopher J Adams +8 more
openaire +1 more source
Accounts of Chemical Research, 2019
Zeolites are important heterogeneous catalysts widely used in the modern chemical and petrochemical industries. Metal-containing zeolites show distinct performance in the catalytic processes such as fluid catalytic cracking, activation and conversion of ...
Jun Xu, Qiang Wang, F. Deng
semanticscholar +1 more source
Zeolites are important heterogeneous catalysts widely used in the modern chemical and petrochemical industries. Metal-containing zeolites show distinct performance in the catalytic processes such as fluid catalytic cracking, activation and conversion of ...
Jun Xu, Qiang Wang, F. Deng
semanticscholar +1 more source