Potassium superoxide piece and molding method thereof

A technology of potassium superoxide and molding method, applied in chemical instruments and methods, oxygen/ozone/oxide/hydroxide, inorganic chemistry, etc., can solve problems such as easy generation of a large amount of dust, inconvenience to use, loose tablets, etc., Achieve the effect of increasing user comfort, low dust rate, and increased contact area

Inactive Publication Date: 2018-03-23
北京恒信化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is directly used as an oxygen generator, the tablet is loose and the strength is poor, and it is easy to generate a lot of dust when subjected to external vibration, which is inconvenient to use

Method used

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  • Potassium superoxide piece and molding method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: A method for forming potassium superoxide tablets, including the following steps:

[0028] Take 100g of potassium superoxide powder (particle size: 20 mesh) with 30% oxygen content, 14g potassium hydroxide (particle size: 60 mesh), and 1g copper oxychloride (particle size: 80 mesh), stir and mix to obtain a powder mixture ;

[0029] Put the powder mixture into a Φ6mm*2.5mm mold, and press the powder mixture under a pressure of 80MPa to form potassium superoxide tablets; the temperature of the system is maintained at 25°C and the humidity is 30% during the entire preparation process.

Embodiment 2

[0030] Embodiment 2: A method for forming potassium superoxide tablets, including the following steps:

[0031] Take 100g of potassium superoxide powder (particle size of 20 mesh) with 30% oxygen content, 14g of potassium hydroxide (particle size of 60 mesh), and 2g of copper oxychloride (particle size of 80 mesh), stir and mix uniformly to obtain a powder mixture ;

[0032] The powder mixture is put into a Φ8mm*2.7mm mold, and the powder mixture is pressed under a pressure of 80 MPa to form potassium superoxide tablets; the temperature of the system is maintained at 25° C. and the humidity is 30% during the entire preparation process.

Embodiment 3

[0033] Embodiment 3: A method for forming potassium superoxide tablets, including the following steps:

[0034] Take 100g of potassium superoxide powder (particle size of 20 mesh) with an oxygen content of 31%, 14g of potassium hydroxide (particle size of 80 mesh), and 2g of copper oxychloride (particle size of 100 mesh), stir and mix uniformly to obtain a powder mixture ;

[0035] The powder mixture is put into a Φ9mm*2.7mm mold, and the powder mixture is pressed under a pressure of 90 MPa to form potassium superoxide tablets; the temperature of the system is maintained at 23° C. and the humidity is 25% during the entire preparation process.

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PUM

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Abstract

The invention relates to a potassium superoxide piece molding method which comprises the following steps: uniformly mixing potassium superoxide powder with auxiliary materials so as to obtain a powdermixture, putting the powder mixture into a cylindrical mold which is 6-12mm in diameter and 2.5-2.7mm in height, and performing pressing molding at pressure of 80-90MPa, thereby obtaining a potassiumsuperoxide piece, wherein the auxiliary materials account for 15-16% of the total mass of the potassium superoxide powder; the auxiliary materials comprise potassium hydroxide and copper oxychloridein a mass ratio of 14:(1-2). The potassium superoxide piece prepared by using the method has the characteristics that the strength of the potassium superoxide piece is improved, and the specific surface area of the potassium superoxide piece is not reduced.

Description

Technical field [0001] The invention relates to the field of a sheet-shaped potassium superoxide oxygen generator for an isolated chemical oxygen self-rescuer, in particular to a potassium superoxide sheet and a forming method thereof. Background technique [0002] In aviation, submarine, mine and other fields, under some special circumstances, the human body needs to survive in a confined space for a period of time. When the human body lives in a confined space for a long time, it needs to control the balance of carbon dioxide and oxygen in the confined space. Too low oxygen or too high carbon dioxide can be fatal. [0003] At present, potassium superoxide is usually used as an oxygen generator to absorb carbon dioxide and release oxygen at the same time in accordance with the human respiratory entropy. Since the apparent specific gravity of potassium superoxide powder is 0.4-0.6g / mL, the true specific gravity is 2.136g / mL. If it is used directly as an oxygen generator, the tabl...

Claims

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Application Information

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IPC IPC(8): C01B13/02A62B7/08
CPCC01B13/0211A62B7/08
Inventor 张京广郭中立李洪斌黄建福王文龙牛钢
Owner 北京恒信化工有限公司
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