Characterization of natural Yemeni zeolites as powder sorbents for ammonium valorization from domestic waste water streams using high rate activated sludge processes [PDF]
, 2018 BACKGROUND In this study three natural Yemeni zeolites (NZ1, NZ2 and NZ3) having major minerals such as clinoptilolite and mordenite, were evaluated as low cost sorbents for the removal and recovery of ammonium ions.
Alouani, Rabeh +4 more
core +2 more sources
International Journal of Coal Science & Technology, 2020 The fly ashes (Class F and C) have been successfully used as the main substrates in the hydrothermal syntheses of Na-A, Na-P1, Na-X and sodalite zeolites. Both ashes and their derivatives after milling with magnetic field grinder were used.
Piotr Kunecki +4 more
doaj +1 more source
Insecticide effect of zeolites on the tomato leafminer Tuta absoluta (Lepidoptera: Gelechiidae) [PDF]
, 2016 (1) Background: The tomato leafminer Tuta absoluta (Lepidoptera: Gelechiidae) is a key tomato insect pest. At present, it is considered to be a serious threat in various countries in Europe, North Africa, and Middle East.
De Clercq, Patrick +3 more
core +3 more sources
Possibility of Modification of Zeolites by Iron Oxides and its Utilization for Removal of Pb(II) from Water Solutions [PDF]
Acta Montanistica Slovaca, 2004 Ion-exchange properties of cations from lattice and ions from solutions are characteristic for zeolites. Zeolites as sorbents are used in many branches of industry. Ion-exchange reactions of cations on zeolites have been a theme of many works.
Michal Lovás +4 more
doaj
Kinetic and Thermodynamic Studies for Zeolites Synthesis
Zanco Journal of Pure and Applied Sciences, 2019 Zeolites are compounds which have many applications in chemistry and industry; therefore, studies of synthesis of zeolites are of great importance.
Rawand S. Abdullah +3 more
doaj +1 more source
Efficient transesterification over two-dimensional zeolites for sustainable biodiesel production
Green Energy & Environment, 2020 Basic zeolites have shown great potential as efficient catalysts for biodiesel production in the transesterification reactions. However, conventional three-dimensional (3D) basic zeolites generally suffer from limited base sites and severe mass-transfer ...
Hao Pang, Guoju Yang, Lin Li, Jihong Yu
doaj +1 more source
Intrazeolite synthesis of polythiophene chains [PDF]
, 1989 Adsorption of thiophene and 3-methylthiophene into the channel system of transition metal-containing zeolites Y and mordenite results in oxidative polymerization to give encapsulated chains of polythiophene and poly(3-methylthiophene)
Bein, Thomas, Enzel, Patricia
core +1 more source
Zeolite synthesis from low-cost materials and environmental applications: A review
Environmental Advances, 2020 Zeolites with the three-dimensional structures occur naturally or can be synthesized in the laboratory. Zeolites have versatile applications such as environmental remediation, catalytic activity, biotechnological application, gas sensing and medicinal ...
Abdul Khaleque +10 more
doaj +1 more source
Ethiopian natural zeolites for photocatalysis
Bulletin of the Chemical Society of Ethiopia, 2015 The combination of zeolites and photochemistry has recently shown excellent results due to the special structure of the zeolites that helps a better use of the solar energy improving the selectivity of the chemical reactions carried out.
K. Guesh +4 more
doaj +1 more source
Acid and steric synergies in industrial Y zeolites for 9, 10-dihydroanthracene hydrocracking
Catalysis Communications, 2023 In the hydrocracking of 9, 10-dihydroanthracene, acid sites and their locations in the Y zeolites play crucial roles. Hydrogen transfer is the dominant reaction for the industrial Y zeolites with undeveloped mesopores whether at low or high temperatures.
Yanni Guo +7 more
doaj +1 more source