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A method and device for preparing nano-alumina by using nano-porous membrane

A nano-alumina and nano-porous technology, which is applied in the direction of alumina/aluminum hydroxide, alumina/hydroxide preparation, and a device in which the axial direction of the swirl flow remains unchanged, can solve the problem of expensive equipment, huge equipment, powder The bulk particle size is difficult to reach the nanometer level, so as to avoid the droplet size from being too large, improve the surface quality, and improve the droplet quality.

Active Publication Date: 2022-04-12
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

However, the current preparation of alumina is easy to introduce impurities, and the particle size of the prepared powder is difficult to reach the nanometer level; or, the disadvantages of huge equipment and expensive equipment limit its use; or, it is finally difficult to collect the required level of nano oxide aluminum

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  • A method and device for preparing nano-alumina by using nano-porous membrane
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  • A method and device for preparing nano-alumina by using nano-porous membrane

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0032] In describing the present invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", " The orientation or positional relationship indicated by "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial" and "circumferential" are based on the drawings The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be c...

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Abstract

The invention provides a device for preparing nano-alumina by using a nano-porous membrane. The nano-alumina preparation device has a platform and a shell, the platform is used to support the entire preparation device, and the aluminum ion solution supply is arranged sequentially above the platform from left to right. device, injection device, combustion device and particle collection device. Compared with the prior art, the present invention avoids the technical problem that the droplet size of the aluminum ion solution sprayed by the spraying device is too large; improves the quality of nano-alumina particles; stabilizes and refines the droplet quality obtained by passing the nanoporous membrane ; Nano-alumina particles of different sizes can be prepared according to needs.

Description

technical field [0001] The invention belongs to the field of material preparation, and in particular relates to a device and a method for preparing nano-alumina by using a nano-porous membrane. Background technique [0002] Nano-alumina is a commonly used material in high-tech fields. Compared with conventional materials, nano-alumina has excellent optical, electrical, magnetic, thermal and Mechanical properties, at present, nano-alumina has been widely used in aerospace, metallurgy, chemical industry, ceramics, electronics, national defense and nuclear technology and other fields. However, the current preparation of alumina is easy to introduce impurities, and the particle size of the prepared powder is difficult to reach the nanometer level; or, the disadvantages of huge equipment and expensive equipment limit its use; or, it is finally difficult to collect the required level of nano oxide aluminum. Contents of the invention [0003] In view of the above technical prob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01F7/02C01F7/30B82Y30/00B04C3/00
CPCC01F7/02C01F7/30B82Y30/00B04C3/00
Inventor 薛健王素清王海辉
Owner SOUTH CHINA UNIV OF TECH
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