نتایج جستجو برای: fentons oxidation process

تعداد نتایج: 1407370  

2016
Bei He Guang Xu Qing Yuan Hugo F. Lopez

The oxidation behavior of silicon-containing steel was studied by applying segmented heating routes similar to the atmosphere and heating process in an industrial reheating furnace. The oxidation tests were carried out on a simultaneous thermal analyzer at heating temperatures of 1150 ̋C–1300 ̋C. The morphologies of Fe2SiO4 were observed by SEM, and the penetration depths of the Fe2SiO4 layer a...

2014
Blanca Barriuso Iciar Astiasarán Diana Ansorena

Lipid oxidation analysis in food samples is a relevant topic since compounds generated in the process are related to undesirable sensory and biological effects. As the process is complex and depends on the type of lipid substrate, oxidation agents and environmental factors, proper measurement of lipid oxidation remains a challenging task. A great variety of methodologies have been developed and...

2011
Kil-Soo Ko Jayhoon Chung Guoda Lian

Stacking fault formation during epitaxial SiGe layer growth in bipolar complementary metal oxide semiconductor (BiCMOS) process which caused high yield loss due to its leakage current on bipolar transistors has been studied. Through the analysis of process flow, oxidation induced stacking faults were indicated as a possible root cause of the yield loss. The identification of the oxidation induc...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389

fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...

Ahmad Reza Momeni, Heshmat Allah Samimi Reyhaneh Jahanian

An efficient one-pot oxidation/condensation tandem process has been developed for the synthesis of 2-substituted benzimidazole derivatives from benzylic alcohols and 1,2-phenylenediamine with use of urea-hydrogen peroxide/silica phosphoric acid  as a bifunctional catalyst. This method provides a rapid and efficient access to 2-substituted benzimidazoles.

2013
Behroz Karimi Mohammad Hassan Ehrampoush Asghar Ebrahimi Mehdi Mokhtari

Wet air oxidation is regarded as appropriate options for wastewater treatment with average organic compounds. The general purpose of this research is to determine the efficiency of three wet air oxidation methods, wet oxidation with hydrogen peroxide and absorption with activated carbon in removing organic matter and nitrogenous compounds from Isfahan's urban leachate. A leachate sample with th...

Journal: :مهندسی متالورژی و مواد 0
هادی کریمی احمد زارع مرتضی هادی محسن صادقی علی قاسمی

titanium aluminide and its alloys have been utilized in automotive, aerospace and power industries because of their specific properties such as low density (~ 4 g/cm3), high melting temperature (~ 1460 °c) and excellent high-temperature strength. ti-48al intermetallic compound and its alloys with 1.5, 3 and 5 at.%mn were produced with mechanical alloying of elemental powders for 50 hours. the p...

Ahmad Reza Momeni, Heshmat Allah Samimi Reyhaneh Jahanian

An efficient one-pot oxidation/condensation tandem process has been developed for the synthesis of 2-substituted benzimidazole derivatives from benzylic alcohols and 1,2-phenylenediamine with use of urea-hydrogen peroxide/silica phosphoric acid  as a bifunctional catalyst. This method provides a rapid and efficient access to 2-substituted benzimidazoles.

2013
Huachun Lan Zhaofei Jiao Xu Zhao Wenjing He Aimin Wang Huijuan Liu Ruiping Liu Jiuhui Qu

Glyphosate, one of the organophosphate herbicides, has been widely used in the word. The removal of glyphosate was comparatively investigated by MnO2 oxidation, electrochemical oxidation, and electrochemically assisted MnO2 oxidation (electro-MnO2) processes. The effects of MnO2 dosage, current density, and solution pH on glyphosate removal and Mn release were examined. The results indicated th...

2015
Jen-Ching Huang Ho Chang Chin-Guo Kuo Jeen-Fong Li Yong-Chin You

Atomic force microscopy (AFM) was used for visualization of a nano-oxidation technique performed on diamond-like carbon (DLC) thin film. Experiments of the nano-oxidation technique of the DLC thin film include those on nano-oxidation points and nano-oxidation lines. The feature sizes of the DLC thin film, including surface morphology, depth, and width, were explored after application of a nano-...

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