نتایج جستجو برای: aluminosilicates

تعداد نتایج: 371  

فقیهیان, حسین , مکی‎زاده, محمدعلی ,

Zeolites are hydrated crystalline aluminosilicates of alkali and alkaline earth cations. Their three dimensional framework consist of [SiO4]- and [AlO4]- tetrahedra. Beside their low price and abundance, three main properties of zeolites i.e: adsorption, ion exchange and catalytical properties promote their versatile industrial applications. In Iran, lack of a systematic and comprehensive resea...

D. Kojić D. Prvulović, G. Grubor-Lajšić M. Popović

The objective of this study was to evaluate the effect of dietary supplements with lead acetate and aluminosilicates (ATN) on antioxidative enzyme activities and lipid peroxidation of the heart and skeletal muscle tissues of broiler chickens. Broilers were allotted to four diets including the control group, the Pb group, the aluminosilicate-ATN (antitoxic nutrient) group and the Pb+ATN group, i...

Journal: :Biomass Conversion and Biorefinery 2023

Abstract The valorization of biogas as a renewable energy source faces major obstacle regarding its purification. Siloxane is one the impurities that cause problems such damages to equipment combustion engines, turbines, and boilers used for conversion heat electricity. In this review, adsorption siloxane removal widely discussed, with two specific approaches: adsorbents sensitivity water regen...

Journal: : 2022

The review analyzes the physical and che­mi­cal properties of modified natural artificial layered aluminosilicates, which form basis for emergence thermoelectric in materials based on them. It represented main methods modification analysis structural these materials. Chemical modi­fication aluminosilicates is carried out by reaction solid aluminosilicate with concentrated aqueous solutions meta...

1999
Volker Heine Martin T. Dove

By framework structures are meant materials consisting of relatively stiff units such as octahedra or tetrahedra, joined by shared oxygen (or other) atoms at the corners. Examples are ZrW2O8 and many aluminosilicates. Rigid rotation of the units often gives a reduction of the volume or of some lattice constant as a purely geometrical effect. The theory of this effect is developed and shown to g...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1384

زئولیت هامودی هستند که به عنوان جاذب تبادلگر و کاتالیزور کاربردهای زیادی دارند. یکی از مهمترین زئولیت ها که به ویژه به عنوان کاتالیزور کاربردهای صنعتی دارد زئولیت zsm-5 می باشد در این پروژه واکنش ایزوپروپیل دار کردن بنزن با 2- پروپانل در شرایط vapor phase بر روی کاتالیست های h3po4-zsm%15 و h-zsm-5 انجام شد و عملکرد این دو کاتالیست برای تهیه کیون که یک ماده حائز اهمیت لز لحاظ صنعتی می باشد، مقای...

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