Study of the effects of acidic after treatment on the gamma alumina powder properties
- سال انتشار: 1396
- محل انتشار: بیستمین کنفرانس شیمی فیزیک ایران (IPCC۲۰)
- کد COI اختصاصی: ISPTC20_286
- زبان مقاله: انگلیسی
- تعداد مشاهده: 360
نویسندگان
Iranian Institute of Research and Design in Chemical Industries (Acecr), Karaj, Iran
Iranian Institute of Research and Design in Chemical Industries (Acecr), Karaj, Iran
Iranian Institute of Research and Design in Chemical Industries (Acecr), Karaj, Iran
Iranian Institute of Research and Design in Chemical Industries (Acecr), Karaj, Iran
چکیده
Increasing the pore volume and pore diameter of gamma alumina powder is the purpose of this research. In order to increase the pore volume and pore diameter of gamma alumina powder, the effects of acidic after treatment on physical chemistry of gamma alumina are studied. In this regard, the boehmite powder from the Azarshahr Nephlinsinite ore is calcinated at 650 ̊C for 6 hours and gamma alumina powder is obtained. In order to obtain the gamma alumina powder with desired pore volume and pore diameter, after treatments in hydrochloric acid and nitric acid and after treatment with different steps (first, second and third steps) on the boehmite powder are performed. The pore volume, pore diameter and surface area of the final prepared gamma alumina were studied by the BET techniques and the results shows that after treatment in hydrochloric acid and nitric acid with third steps are effective to increase the pore volume and pore diameter of the gamma alumina powder.کلیدواژه ها
gamma alumina; catalyst support; acidic after treatment; catalytic HDTمقالات مرتبط جدید
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