Application of Pseudo Boehmite
1. Used for nanotechnology aluminum dioxide raw materials
It is a raw material for γ-alumina. The γ -type alumina inherits the characteristics of the raw material, high activity, and strong adsorption, and has become a raw material for synthetic high -temperature structure ceramics such as aluminum nitride ceramics. In addition, nanotechnology is particularly suitable for chemical mechanical polishing (CMP). The CMP pulp made from nano-al2O3 as grinding particles can be used for integrated circuit production process in the middle layer of tungsten, aluminum, copper and other metals as semiconductor wiring materials The flat film material and the polishing of high -grade optical glass, quartz crystals and various gems.
2. Pseudo boehmite used for hydrogenation catalyst
In order to efficiently use oil resources and the requirements of oil cleaning, hydrogenation technology has been widely used. Hydrogenation catalysts are the core of hydrogen refueling technology. The γ oxide carrier used for hydrogen refreshing catalysts is usually used as pseudo boehmite. It is made of dehydration and dehydration, and has a comparison area of the surface area, the distribution of holes and holes, and the surface of different natures. Good mechanical strength and thermal stability are good, adding low characteristics.
3. Pseudo boehmite used for adhesive
It is not only conducive to the forming of the carrier as a binder, but also affects the catalytic performance of the catalyst. It is selected and restored to the CE-MN/TIO2 catalyst in the process of nitrity. The agent not only enhances the mechanical strength of the catalyst, but also improves the selectivity of the catalyst denitration active agent.
4. Preparation of γ-Al2O3 coating of pseudo boehmite
Painting a layer of active coating on the carrier is a common method to improve the size of the carrier than the surface area. γ-aluminum is the most commonly used coating material. It has a high ratio area and helps the active components in the effective distribution of the immersion process. The preparation of commonly used γ -aluminum coating is ALOOH solidar. This aluminum solution is based on thin water and aluminum stones. It is prepared by acid glue. The process is simple and easy to control and can be used for industrial production.
