硬水铝石

高温高表面氧化铝新材料制备的化学研究Ⅰ.硬水铝石法制高表面α-Al2O3

Preparation chemistry study of the high temperature and high surface area Al_2O_3 ⅰ Preparation of high surface area α - Al_2O_3 from diaspore decomposition

本文研究了一硬水铝石、高岭石粘土岩和褐铁矿磨矿产物的粒度特性。

The size distributions of diaspore , kaolinite and limonite ground in a ball mill in turn were studied .

研究了由硬水铝石分解制备高表面αAl2O3的生成条件，以及煅烧温度、时间对高表面αAl2O3性质的影响规律和添加Si对高表面αAl2O3热稳定性的影响。

The forming condition of high surface area ( HSA ) α Al 2O 3 from diaspore decomposition , the influences of calcination temperature and time on its properties and the effects of additive Si on its thermal stability were studied .

峨嵋叶蜡石矿储量大，矿石类型主要有石英叶蜡石型、硬水铝石叶蜡石型、叶蜡石型、明矾石叶蜡石型等。

Emei Pyrophyllite deposit possesses a large amount of reserves with different types of pyrophyllite ore , such as quartz-pyrophyllite , diaspore-pyrophyllite , pyrophyllite and alunite-pyrophyllite etc.

发现样品中镓的加权平均含量超过边界品位，并在煤层下部和底板岩石中显著富集，其主要地质载体为硬水铝石。

It was discovered that the gallium is more than marginal grade in content and enriched in lower coal seam and floor , and occurs mainly in diaspore .