Molten iron-assisted method for producing aluminum nitride and device thereof

US10106414B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10106414-B2
Application numberUS-201614992101-A
CountryUS
Kind codeB2
Filing dateJan 11, 2016
Priority dateOct 14, 2015
Publication dateOct 23, 2018
Grant dateOct 23, 2018

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

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A molten iron-assisted method for producing aluminum nitride (AlN) and a device thereof are disclosed. Pure aluminum is introduced into a vacuumed molten iron bath continuously for producing a molten iron bath having the aluminum, then nitrogen is introduced into the molten iron bath having the aluminum. Production of AIN is controlled by having the concentration of aluminum in the molten iron bath having the aluminum controlled. At the time AIN is formed continuously in the molten iron bath having the aluminum, AIN floats to the surface of the molten iron bath having the aluminum. Ar and N 2 may be blown and dust is removed by static electrons thereafter, such that pure aluminum nitride powder can be collected. Finally, the used gas is recycled and reused.

First claim

Opening claim text (preview).

What is claimed is: 1. A molten iron-assisted method for producing aluminum nitride, comprising: introducing aluminum into a molten iron bath in vacuum continuously; introducing nitrogen to produce aluminum nitride powder in the molten iron bath having the aluminum with the aluminum nitride powder floating on the surface of the molten iron bath having the aluminum; blowing the aluminum nitride powder away from the surface of the molten iron bath having the aluminum by argon or other noble gases, and collecting the aluminum nitride powder with static electrons; and recycling argon or other noble gases. 2. The molten iron-assisted method for producing aluminum nitride according to claim 1 , wherein the aluminum is aluminum powder or aluminum wires.

Assignees

Inventors

Classifications

  • Preparation by direct nitridation of aluminium · CPC title

  • Stationary reactors without moving elements inside (B01J19/08, B01J19/26 take precedence; with stationary particles B01J8/02) · CPC title

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What does patent US10106414B2 cover?
A molten iron-assisted method for producing aluminum nitride (AlN) and a device thereof are disclosed. Pure aluminum is introduced into a vacuumed molten iron bath continuously for producing a molten iron bath having the aluminum, then nitrogen is introduced into the molten iron bath having the aluminum. Production of AIN is controlled by having the concentration of aluminum in the molten iron …
Who is the assignee on this patent?
Univ Nat Tsing Hua
What technology area does this patent fall under?
Primary CPC classification C01B21/0722. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Oct 23 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).