نتایج جستجو برای: separation process

تعداد نتایج: 1416659  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...

Journal: :journal of membrane science and research 0
mohammad mahdi a. shirazi membrane industry development institute, tehran, iran ali kargari membrane processes research laboratory (mprl), department of chemical engineering, amirkabir university of technology (tehran polytechnic), tehran, iran

the growing scarcity of fresh water is driving the implementation of wastewater treatment and water reuse on an increasingly large scale. various methods have been developed and used for water reuse from wastewater; however, the membrane distillation (md) process, as a promising separation technology, has recently gained more attention. the md process is a non-isothermal membrane-based separati...

Journal: :زن در توسعه و سیاست 0
حمیدرضا عریضی دکترای روانشناسی صنعتی-سازمانی، دانشیار گروه روانشناسی دانشگاه اصفهان شبنم جوانمرد کارشناس ارشد روانشناسی صنعتی-سازمانی، دانشگاه اصفهان

attachment of children to their parents and their separation are two important growth processes which are summoned up in teens again and become more important. the present research tends to find out either the processes of attachment and separation among girls and boys take place in different ways or gender can affect the relationship between these two processes. to this end 300 students of the...

Journal: :journal of membrane science and research 0
maryam takht ravanchi department of chemical engineering, amirkabir university of technology (tehran polytechnic), no. 424, hafez ave., p.o. box 15875- 4413, tehran, iran tahereh kaghazchi department of chemical engineering, amirkabir university of technology (tehran polytechnic), no. 424, hafez ave., p.o. box 15875- 4413, tehran, iran ali kargari membrane processes laboratory, department of petrochemical engineeing, amirkabir university of technology, mahshahr campus, mahshar, iran

traditional systems for olefin/paraffin separation, like low-temperature distillation, are expensive and very energy consuming, and therefore, alternative separation methods are desired. facilitated transport membranes are new tools for this separation to be substituted in large scale separation of olefin-paraffin mixtures. to design a membrane process for olefin-paraffin separation, equilibriu...

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