Preparation method of subsidence self-propagating aluminum nitride

An aluminum nitride, self-propagating technology, applied in chemical instruments and methods, nitrogen compounds, inorganic chemistry, etc., can solve the problems of energy consumption, insecurity, and energy consumption, and achieve uniform distribution, adjustable speed, and energy saving Effect

Active Publication Date: 2020-06-30
宁夏时星科技有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0004] The preparation reactors of aluminum nitride in the prior art are mainly closed reactors, some of which need to be carried out in a high-pressure state, which consumes energy and is unsafe; some require heating reactions, which also cause energy consumption; and the existing reactor preparation The output and purity are not high, and the improvement of the overall equipment is urgently needed to increase the output and reduce energy consumption

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  • Preparation method of subsidence self-propagating aluminum nitride
  • Preparation method of subsidence self-propagating aluminum nitride
  • Preparation method of subsidence self-propagating aluminum nitride

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. In the specification, the same or similar reference numerals designate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, but should not be construed as a limitation of the present invention.

[0028] Throughout this specification, reference to "one embodiment," "an embodiment," "an example," or "example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in the present invention. In at least one embodiment. Thus, appearances of the phrases "in one embodiment," "in an embodim...

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Abstract

The invention relates to a sedimentation type self-propagating aluminum nitride preparation method. The method comprises the steps of introducing aluminum powder into a sedimentation type reactor furnace body from a solid material inlet; introducing nitrogen into the furnace body through a gas inlet; triggering a self-propagating reaction between the aluminum powder and the nitrogen in the furnacebody in order to generate aluminum nitride; settling the aluminum nitride to the bottom of the furnace body and then discharging the aluminum nitride through a discharge hole. The sedimentation typeself-propagating aluminum nitride synthesis method can realize the continuous synthesis of aluminum nitride and is particularly efficient and capable of saving energy for the preparation of aluminum nitride.

Description

technical field [0001] The invention relates to the field of nitride preparation, and further relates to a method for preparing subsidence self-propagating aluminum nitride. Background technique [0002] As a ceramic raw material, aluminum nitride is widely used in industry. Self-propagating technology is a way to synthesize materials by exothermic chemical reaction itself. Since the reaction can be continued through the exothermic chemical reaction itself, and the reaction can continue without an external heat source, it is favored by the industry. [0003] The sinking reactor (sinking furnace) is a reactor that allows the powdery material to partially react with the gas during the descent, and descends to the deposition area to complete the final reaction. The material column formed by the deposited material is cooled by the cooling section, and the material is regularly discharged from the bottom, and the material column drops by its own weight during the discharge proce...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B21/072
CPCC04B35/581C04B35/62605Y02P20/10
Inventor 杜文贵秦军
Owner 宁夏时星科技有限公司
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