Preparation method of Al-KMnO4-MnO2 spontaneous heating material

An al-kmno4-mno2, self-heating technology, applied in the direction of heat exchange materials, lighting and heating equipment, chemical instruments and methods, etc., can solve the problems of quick and time-saving, explosion hazards, inconvenient use, etc. that do not meet the requirements of field food problems, to achieve the effect of prolonging the exothermic reaction time, accelerating the initial reaction rate, and little salinization

Inactive Publication Date: 2013-08-21
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that a large amount of water is required as a reaction medium during heating, and a large amount of hydrogen gas is generated, which is inconvenient to use and has a potential explosion hazard
When used as a food heating agent, the heating is slow, which does not meet the requirements of fast and time-saving field food

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 125g of reduced aluminum powder, 22g of potassium permanganate, 3g of manganese dioxide, 3g of sodium citrate, 12g of sodium dihydrogen citrate, 10.5g of activated carbon, and 24.5g of anhydrous magnesium sulfate. Mix all the materials evenly to form a safe and efficient self-heating material product for fire-free self-heating food, which is sealed and stored. Take 100g of the finished self-heating material and pack it in non-woven fabric, 90g of water in a plastic bag, and 500mL of milk in a plastic bag aseptically, then put the three into the same plastic bag one by one, and use a layer of foam for insulation on the bag wall Heat insulation layer, after being sealed, it becomes fire-free self-heating food. When water is in direct contact with the heating material, an exothermic reaction will occur rapidly. The product can keep heating for 30 minutes without hydrogen release, and the milk can reach a drinkable temperature of 55°C within 5 minutes, and the maximum temp...

Embodiment 2

[0042] Aluminum powder 32g, potassium permanganate 68.8g, manganese dioxide 4.8g, sodium tartrate 2g, sodium hydrogen tartrate 8g, activated carbon 5g, anhydrous magnesium sulfate 5g. Mix all the materials evenly to form a safe and efficient self-heating material product for fire-free self-heating food, which is sealed and stored. Take 100g of the self-heating material and pack it in non-woven fabric, 90g of water in a plastic bag, and 350g of eight-treasure porridge in a plastic bag aseptically, and then put the three into the same plastic bag in turn, and use a layer of foam for insulation on the bag wall The heat insulation layer becomes fire-free self-heating eight-treasure porridge food after being sealed. When water is in direct contact with the heating material, an exothermic reaction will occur rapidly. The product can continue to heat for 30 minutes without hydrogen release, and the eight-treasure porridge can reach a suitable eating temperature of 70°C in 10 minutes...

Embodiment 3

[0044] Reduced aluminum powder 39.2g, potassium permanganate 26.6g, manganese dioxide 4.2g, sodium malate 3g, sodium hydrogen malate 7g, activated carbon 8g, anhydrous magnesium sulfate 12g. Mix all the materials evenly to form a safe and efficient self-heating material product for fire-free self-heating food, which is sealed and stored. Take 100g of the finished product of self-heating material and pack it with non-woven fabric, 90g of water with plastic bag, 500mL400g of mineral water with plastic bag aseptically pack, then put the three into the same plastic bag one by one, and use a layer of foamed plastic as the wall of the bag. Heat insulation layer, after sealing, it becomes fire-free self-heating mineral water. When water is in direct contact with the heating material, an exothermic reaction will occur rapidly. The product can generate heat continuously for 30 minutes without releasing hydrogen, and the drinking temperature of mineral water can reach 60°C within 5 min...

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Abstract

The invention discloses a preparation method of an Al-KMnO3-MnO2 spontaneous heating material. The Al-KMnO4-MnO2 spontaneous heating material comprises an Al-KMnO4-MnO2 system, a buffer system with a complexing action and an activated carbon-anhydrous magnesium sulfate system, wherein the mass percentage of the Al-KMnO4-MnO2 system to the buffer system to the activated carbon-anhydrous magnesium sulfate system is 50%-80%:(2%-15%):(5%-35%). The high-efficiency spontaneous heating material and spontaneous heating convenient foods have very good consumer markets and good economic benefits, can be used for obviously improving the comfort level for field operating personnel, tourists and the like during catering, and particularly plays important roles in improving the living quality and fighting capacity of armies during camping and saving time.

Description

technical field [0001] The present invention relates to a kind of Al-KMnO 4 -MnO 2 The preparation method of a self-heating material is specifically a method for preparing a hydrogen-free and high-efficiency self-heating material for fire-free self-heating food. Background technique [0002] In the field where there is no heating source such as gas or electricity, or where open fire cannot be used for heating or simple and fast heating is required, the hot food that can provide a certain temperature without open fire heating is called self-heating convenience food, and the material that provides the heat source is called It is a self-heating material. The combination of self-heating material and food can be called portable self-heating convenience food because of its portability and convenience. [0003] In recent years, my country's food industry has developed rapidly in terms of convenience and leisure food, and there are many varieties, but most of them belong to the c...

Claims

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Application Information

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IPC IPC(8): C09K5/18B65D81/34B65D81/38
Inventor李群李子超赵昔慧王艳玮李晓雯吕洲韩愈
OwnerQINGDAO UNIV