شماره ركورد كنفرانس :
4865
عنوان مقاله :
Studying the Effect of Nitric Acid on the Physical Chemistry Properties of the Prepared Extrudates Catalyst Support from Boehmite Powder of Nephleensinite Ore Mines
پديدآورندگان :
Shahidian Zahra z_shahidian@yahoo.com Iranian Institute of Research and Design in Chemical Industries (Acecr), Karaj, Iran , Beshkoofeh Sara beshkoofehs@gmail.com Iranian Institute of Research and Design in Chemical Industries (Acecr), Karaj, Iran , Tavakolzadeh Fatemeh f.tavakol1363@yahoo.com Iranian Institute of Research and Design in Chemical Industries (Acecr), Karaj, Iran , hemshadi Babak babakshemshadi@yahoo.com Iranian Institute of Research and Design in Chemical Industries (Acecr), Karaj, Iran
كليدواژه :
acidic aging time , extrudates gamma alumina , acidic treatment , catalyst support
عنوان كنفرانس :
بيست و دومين كنفرانس ملي شيمي فيزيك ايران
چكيده فارسي :
In this research, for the first time, the extrudates gamma alumina prepared from Boehmite powderof the Nephleensinite ore mine. In order to enhance the physical properties of the catalyst support, the prepared extrudats were treated in high concentration nitric acid at different times, and the effect of treatment times on the basic properties as the Surface Area (S.A.) and Average Pore Diameter (A.P.D.) were studied. These effects were studied by using X-ray diffraction (XRD), N2-adsorption/desorption (BET) and Scanning Electron Microscope (SEM) techniques. The sample 3 with 72 hr aging time was selected as the optimized sample..
