توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱THE EFFECT OF IMPREGNATION METHOD ON THE PROPERTIES OF A DESULFURIZATION CATALYST
اطلاعات انتشار: سومین همایش ملی تکنولوژی های نوین در شیمی، پتروشیمی و نانو ایران، سال
تعداد صفحات: ۴
Alumina–supported desulfurization catalysts are vastly consumed in various refining processes. Therefore, the end price and industrial preparation technique of the catalyst is highly important. In this work, boehmite was synthesized by reacting Al(NO3)3.9H2O and ammonia. The boehmite powder was used as a support for active metals such as Co and Mo. Two impregnation methods, including consecutive dry impregnation (two–stage) and wet impregnation (single–stage), were applied to deposit the active metals onto the extruded γ–Alumina support. Characterization tests such as XRF, BET, XRD, and catatest were performed to evaluate the structural properties and catalytic performance of the products obtained from these methods.<\div>

۲Synthesis and Structure Determination of Novel Derivative of Cyclotriphosphazene with Phloroglusine Ligand with Two Protected Position
نویسنده(ها): ، ،
اطلاعات انتشار: Iranian Journal of Chemistry and Chemical Engineering (IJCCE)، سي و پنجم،شماره۲(پياپي ۷۸)، ۲۰۱۶، سال
تعداد صفحات: ۷
In this study, we have been involved in the synthesis and characterization studies of a new cyclotriorganophosphazenes complex with protected phloroglusine ligand. Firstly,we synthesized hexachlorocyclotirphosphazene from ammonium chloride and phosphorus pentachloride reaction and then two hydroxyl groups of the phloroglusine ligand were protected with methyl iodide and tosyl chloride. Finally, the deprotonated and protected phloroglusine was reacted as an oxygen–containing ligand with hexachlorocyclotriphosphazene in the ratio of 6:1 in THF as a solvent, All of Cl atoms were substituted with hydroxyl groups of ligand to give a new product. This product identified by a series of spectroscopic techniques including FT–IR,31P NMR, 13C NMR, 1H NMR and mass spectrometry.
نمایش نتایج ۱ تا ۲ از میان ۲ نتیجه