硝酸法制备拟薄水铝石中温度影响研究

Research On Temperature Effect To The Production Of Pseudo-Boehmite With Nitric Acid Route

氧化铝是一种应用很广的催化剂及载体,工业上一般由拟薄水铝石(PB)高温焙烧得到。温度是拟薄水铝石制备至关重要的条件。研究了温度对物相、结晶度和孔径分布等的影响。随反应温度升高,结晶度增大,平均孔径增大。

Alumina is an extensively used catalyst and carrier, it is often obtained commercially by baking pseudo-boehmite(PB) on high temperature. Temperature is a critical condition for the manufacture of pseudo-boehmite(PB). The effects of temperature to phase, crystallization degree and aperture distribution are examined. With the increasing temperature, the crystallization degree and average aperture will both be increased.