Preparation of gamma-alumina as a catalyst And study its properties and use in Adsorption of chromium hexagon from water Sewage

Abstract

This research aims to study and prepare a highly effective catalyst (Gama
- alumina) because of its importance in the industry; From raw materials available cheap
The price is somewhat, as the remnants or residues of aluminum factories were taken as raw materials
To prepare the active phase of alumina, which is 81203 7.

The research also included a study of the best temperatures to obtain
Alumina phase where the results showed that the best temperature was between
(}800-}700) to obtain the gamma-alumina phase.

The prepared samples were analyzed using the X-ray diffraction technique
Menen), which showed the results of obtaining a phase and 1:08-7.
The research also included a study of the effectiveness of Kama-alumina by using it in
Effective adsorption of chromium hexagon from industrial wastewater
Good results using the visible spectrophotometer over Benfen G
) 117-17151016 at 540 nm).