Preparation Technology of High Purity Magnesium Oxide for Plasma Display

Hebei Messi Biology Co., Ltd. stated that ultra-high-purity magnesium oxide is a new type of functional fine inorganic material, which is widely used in many fields such as electronic components and advanced ceramic materials; for example, magnesium oxide dielectric protective film is a new generation of plasma flat panel display ( Its performance directly affects the working characteristics and life of the PDP. Generally, the purity of magnesium oxide is required to be greater than 99.99%, and the total amount of impurity elements must not exceed 100ppm. Although my country\’s magnesium resource reserves rank first in the world, there is still a lack of key technologies for large-scale production of high-purity magnesium oxide. The purity of domestic mass-produced magnesium oxide is usually below 99.9%, which limits its application in high-tech fields.

This project invents a technology for the simple preparation of high-purity magnesium oxide products, which can be used to produce the raw materials for the dielectric protective film of PDP displays and the raw materials for the production of magnesium oxide single crystals. The purity of the products can reach more than 99.99%. Preparation technology of fused magnesia; invented Ca, Sr, Sc doped magnesia material preparation technology; invented magnesium aluminum, boron magnesium and other composite functional oxide materials preparation technology; prepared hollow tube, square, fiber, multi-layer sheet Magnesium oxide, magnesium carbonate, basic magnesium carbonate and basic magnesium sulfate micro-nano materials with morphologies such as flowers and flowers; the raw materials are easy to obtain, the product has high purity and low cost, and has the value of industrial application.

The present invention proposes a new practical technology to make magnesium oxide products with a purity of more than 99.99% and a particle size between 50nm and 10μm; the raw materials are easy to obtain, the product has high purity and low cost, and has the value of industrial application.