نتایج جستجو برای: ion exchange microporous anisole

تعداد نتایج: 384244  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2007
hossein faghihian majid vafadar touraj tavakoli

the objective of this research is to find an economically attractive alternative method for hydrodesulfurization of petroleum fractions and to select a suitable adsorbent for this process.deep desulfurization of transportation fuels (gasoline, diesel, and jet fuels) is being mandated by governments and is also needed for future fuel cell applications. however, it is extremely difficult and cost...

ژورنال: طلوع بهداشت یزد 2014
محوی, امیر حسین, کیانی, قاسم ,

Introduction: Cyanide, an environmental pollutant which is found in many different industrial effluents, causes water resources pollution being hazardous to human and environment. Cyanide can be removed from aqueous solutions by different methods but most of them are very expensive. In this study, Lewatit FO36 exchange resin was used to remove Cyanide in a batch system. Methods: Removing the...

The main objective of this study was to investigate biocompatibility and provide in vivo pharmacological and toxicological evidence for further investigation of the possibility of pH sensitive ion exchange resin microsphere for clinical utilizations. Acute toxicity study and general pharmacological studies were conducted on the pH sensitive ion exchange resin microsphere we prepared. The genera...

The main objective of this study was to investigate biocompatibility and provide in vivo pharmacological and toxicological evidence for further investigation of the possibility of pH sensitive ion exchange resin microsphere for clinical utilizations. Acute toxicity study and general pharmacological studies were conducted on the pH sensitive ion exchange resin microsphere we prepared. The genera...

ژورنال: مجله دندانپزشکی 1998
رشیدان, نیره , ماهگلی, حسینعلی ,

  The major foible of dental ceramics is their brittle nature. Therefore, the producers of these materials have focused on the “strength” issue. A method of increasing strength is ion exchange on porcelain surface which leads to formation of a compressive crust that opposing forces should overcome before developing a crack. In current study, ion exchange in two types of porcelain, Ceramco II wh...

2012
Yangong Zheng Xiaogan Li Prabir K. Dutta

The unique properties of microporous zeolites, including ion-exchange properties, adsorption, molecular sieving, catalysis, conductivity have been exploited in improving the performance of gas sensors. Zeolites have been employed as physical and chemical filters to improve the sensitivity and selectivity of gas sensors. In addition, direct interaction of gas molecules with the extraframework ca...

Journal: :international journal of environmental research 0

a total of 148 groundwater samples were collected from bore wells from thirumanimuttar sub-basin for two seasons to identify major geochemical process activated to alter groundwater chemistry. the study revealed relationships with the lithology and anthropogenic process. groundwater in the region was dominated by na – ca – mg and cl and hco3 types. the (ca +mg) versus tz+ plot for both seas...

Mona Iravaninia S. Rowshanzamir,

In present research work, anion exchange membranes based on quaternized polysulfone with ammonium cation moieties (QAPSF) were prepared by chloromethylation, amination and alkalization. The chloromethylated polysulfone were characterized by 1HNMR spectroscopy and functionalization degree was determined according to peak area integration. Ion transport properties (ionic conductivity, ion exchang...

2013
Dinesh Saxena Somesh Kumar Saxena Neetesh Mishra

This paper dwells on the results of the experimental study of three binary mixture i.e., Para-azoxy anisole (PAA)-Benzene (C6H6), Para-azoxy anisole (PAA)-Carbon tetrachloride (CCl4), Para-azoxy anisole (PAA)-1-4 Dioxane (C4H8O2) at 303K, 303K and 304K respectively. The ultrasonic velocity (u) and density (ρ) have been measured in different mole fraction. From these values the acoustical parame...

Journal: :Physical chemistry chemical physics : PCCP 2014
Reza Omidyan Hajar Rezaei

The potential energy profiles of neutral and protonated anisole and p-fluoroanisole at different electronic states have been investigated extensively by the RI-MP2 and RI-CC2 methods. The calculations reveal that the relaxation dynamics in protonated anisole and p-fluoroanisole are essentially different from those of the neutral analogues. In neutral anisole/p-fluoroanisole, the (1)πσ* state pl...

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