Nano-micron spherical powder and preparation method and equipment thereof

A spherical powder, nano-micron technology, applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of inability to realize industrial production, difficult to control particle size, complicated process flow, etc., to shorten the process time and improve The effect of spheroidization and simplification of process flow
CN113371682AActive Publication Date: 2021-09-10CHINA ENFI ENGINEERING CORPORATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA ENFI ENGINEERING CORPORATION
Publication Date
2021-09-10

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Abstract

The invention discloses nano-micron spherical powder as well as a preparation method and equipment thereof. The method comprises the following steps of: adding an additive into a solution, and carrying out spray pyrolysis to obtain nano-micron spherical metal oxide powder. The method comprises the following steps of: carrying out one-step continuous atomization and thermal decomposition by adopting spray pyrolysis, and then carrying out hydrogen reduction to obtain nano-micron spherical metal powder; or carrying out one-step continuous atomization, thermal decomposition and hydrogen reduction in a multi-section temperature zone by adopting spray pyrolysis to directly obtain the nano-micron spherical metal powder. By adopting the method, particle aggregation can be avoided, the balling degree is improved, the technological process and time are shortened, the cost is reduced, and the purpose of industrial production is achieved; and the prepared nano-micron spherical metal oxide and metal powder have the advantages of being good in dispersity, narrow in particle size distribution, small in particle size, uniform in particle size and high in purity.
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Description

technical field

[0001] The invention relates to the technical field of spray pyrolysis, in particular to a nano-micron spherical powder and a preparation method and equipment thereof. Background technique

[0002] The morphology and particle size distribution of the powder directly affect its product performance and become an important technical index to measure the quality of the powder. Nano-micro spherical powder has the characteristics of nano-materials such as high reactivity, quantum size effect and surface area effect, and can be widely used in catalysis, new energy, energy storage and conversion and other fields.

[0003] Nano-micro spherical metal oxide powder has the characteristics of nano-materials such as high reactivity, quantum size effect and surface area effect and other special properties, and can be widely used in catalysis, new energy, energy storage and conversion and other fields. At present, the preparation methods of nano-micro spherical metal oxide ...

Claims

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