Method for preparing bird-nest type monodisperse magnesium oxide

A magnesium oxide, monodisperse technology, applied in the direction of magnesium oxide, can solve the problems that affect the production and application of magnesium oxide, the shape of magnesium oxide is difficult to control, and the particle size distribution is uneven, so as to achieve easy operation, controllable shape, The effect of short reaction times
CN1935655AInactive Publication Date: 2007-03-28DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2007-03-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the preparation of magnesia, concretely a nestlike monodisperse magnesia preparing method, in a 120-140 deg.C heating system, and a water solution system, using soluble Mg salts and soluble carbonates as raw materials, producing alkali magnesium carbonates by codeposition reaction, then making high temperature baking and making it. And the method is simple to operate, the raw materials are easy to obtain, and the product has a uniform particle size and a shape easy to control.
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Description

technical field

[0001] The invention relates to the preparation of magnesium oxide, in particular to a preparation method of bird's nest monodisperse magnesium oxide. Background technique

[0002] Magnesium oxide is the most widely used ceramic material, and it has also been used in various fields such as catalytic materials, refractory materials, paints, superconductors, and toxic waste gas treatment. Nowadays, the methods used to prepare magnesium oxide mainly include chemical vapor deposition, sol-gel method, spray-pyrolysis method, and salt decomposition method. Although these methods can be used to obtain magnesium oxide with uniform particle size and controllable morphology, they need to use expensive and highly toxic organometallic compounds as precursors, or the operation steps are cumbersome. Therefore, there is an urgent need to develop a simple method for preparing MgO with controllable morphology.

[0003] Co-precipitation is a traditional method for preparing ...

Claims

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