JPS6024041B2 - Solid agent for oxygen generation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solid agent for oxygen generation that is easy to handle and safe.

The solid agent for oxygen generation generates oxygen just by burning it,
Moreover, when handling it, it is not necessary to fill it into a high-pressure cylinder unlike general oxygen gas, so it is used for welding, cutting, emergency medical treatment, etc.

However, conventional solid agents for oxygen generation mainly contain sodium chlorate, but since sodium chlorate is unstable and easily decomposed, it has to be handled and stored with care. Further, even when this solid agent is decomposed by combustion, many impurities other than oxygen are generated, so it is extremely difficult to sufficiently remove impurities and obtain pure oxygen. In view of the above circumstances, this invention was developed with the aim of obtaining a solid agent for oxygen generation that is easy to handle and can easily obtain pure oxygen. By adding appropriate amounts of iron, manganese, and asbestos or glass fibers, it was possible to obtain a solid agent that was easy to handle and from which pure oxygen could be extracted.

Perchlorate used as the main component of the solid agent in the present invention is far more stable and easier to handle than sodium chlorate.

Moreover, when appropriate amounts of iron and manganese are added to perchlorate,
Iron and manganese are oxidized during thermal decomposition. At this time, the perchlorate is decomposed by the heat of the oxidation reaction of iron, generating oxygen. In addition, manganese dioxide produced by the reaction between oxygen and manganese acts as a catalyst for the decomposition reaction of the above-mentioned perchlorate.
Oxygen generation is promoted. Therefore, according to the present invention, oxygen can be continuously generated by using appropriate amounts of iron and manganese in combination with perchlorate. Furthermore, the gas produced as a result of these thermal decomposition reactions is mostly oxygen, with a small amount of chlorine and other impurity gases present.

However, this impure gas can be easily removed by simply passing it through a filter, making it possible to obtain highly pure oxygen gas. Since the residual liquid produced by thermal decomposition becomes a solid such as manganese oxide or iron oxide, it is easy to remove it when it accumulates and to handle it in other ways.

In this invention, asbestos or glass fiber is added as a heat insulating agent to continue the decomposition reaction. In addition, the perchlorate used in this invention is
Although various salts such as potassium perchlorate and sodium perchlorate can be used, potassium perchlorate is not deliquescent and is the easiest to handle.

When producing the solid dosage form of the present invention, the perchlorate is 60 to 8
It is preferable to use 6% by weight or less, and oxygen gas generated by thermal decomposition is consumed for oxidation of iron and manganese, making it impossible to obtain sufficient oxygen gas. .

Moreover, when the amount is 80% by weight or more, the perchlorate is stable, so decomposition hardly occurs. Further, the appropriate amount of iron and manganese to be mixed in the perchlorate is 3 to 1% by weight, respectively, and the appropriate amount of asbestos or glass fiber is 3 to 1% by weight.

To produce a solid drug using these ingredients, these various ingredients are powdered, and 3 to 5% by weight of the total amount of the solid drug is added and mixed. After making it into a ball, it is molded into a spherical or rod shape using a press mold and dried at a low temperature to obtain the desired solid agent for oxygen generation.

In order to facilitate ignition, an ignition part may be provided at the end of the solid agent according to the present invention.
The thickness is about the same as that of a rib, and it can be attached to the end of the solid agent during molding.The composition is as follows: perchlorate is 5 to 2% by weight iron, manganese is 35 to 4% by weight, and The amount of asbestos or glass fibers may be 3 to 1% by weight.

Examples of this invention will be shown below. perchlorate
7% iron by weight
1 wt% manganese
1% by weight Asbestos 1% by weight The various components in the above proportions are pulverized, and the solid agent is 5% by weight of the total amount.
% by weight was added, molded into a round bar shape using a press mold, and dried at a low temperature.

The solid agent thus obtained is inserted into a gas generation container, the ignition part is ignited to thermally decompose the inserted solid agent, and the generated gas is passed through a barium sulfate layer and a filter layer to remove chlorine gas and dust. As a result, 99.9% from the gas outlet
We were able to obtain pure oxygen gas.

In addition, paraffins, starch, linseed oil, etc. can be used as the solid agent.

Claims (1)

[Claims] 1. A solid agent for oxygen generation, characterized in that it is made by adding a solidifying agent to a raw material made of perchlorate as a main component, adding an appropriate amount of iron and manganese, and further adding asbestos or glass fiber, and molding it. .