A kind of α-alh3 flotation method and its application

A technology of flotation liquid and suspension liquid, applied in flotation, chemical instruments and methods, offensive equipment, etc., can solve the problems of reducing the energy of energetic materials, impact sensitivity of propellant slurry, increased friction sensitivity, poor stability, etc. problems, to achieve the effect of simple and efficient separation technology, low slurry sensitivity and improved stability
CN110550607BActive Publication Date: 2021-06-11HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
Publication Date
2021-06-11

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Abstract

The present invention relates to a kind of α-AlH 3 The flotation method and its application belong to the technical field of energetic materials. The present invention utilizes α crystal form and non-α crystal form AlH 3 Different physical and chemical properties, surface adsorption characteristics, crystal morphology characteristics and other inherent properties, with the help of ultrasonic separation and purification function, using a specific flotation liquid, the AlH 3 Medium α crystal form and non-α crystal form AlH 3 High-efficiency separation to obtain high-quality α-form AlH 3 and non-alpha crystal form. Through impact sensitivity and friction sensitivity experiments, the isolated high-quality α-crystal AlH was verified 3 Safety for applications in composite high-energy solid propellants. High-quality α-crystal form AlH of the present invention 3 High hydrogen content, based on high-quality alpha-form AlH 3 The slurry sensitivity of the high-energy propellant is low.
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Description

technical field

[0001] The present invention relates to a kind of α-AlH 3 The flotation method and its application belong to the technical field of energetic materials, more specifically, it relates to a high-quality α-AlH that can be applied in the field of propellants, explosives or other energetic materials 3 , and its use of liquid-phase ultrasonic-assisted flotation of high-quality α-AlH 3 , increasing AlH 3 Applicable methods in the field of energetic materials. Background technique

[0002] Aluminum hydride (AlH 3 ), also known as alane, is a promising high-energy additive for solid propellant formulations. According to theoretical calculations, using AlH 3 Instead of aluminum powder, the specific impulse of the solid propellant can be increased by at least 100N.s.kg -1 , and its combustion chamber and ejection gas temperature are lower than those of propellants containing aluminum powder, AlH 3 Releases 10% of its own weight in H during decomposition 2 , whic...

Claims

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