Carbon dioxide absorbent and preparation method

Abstract

The invention discloses the carbon dioxide absorbent and the preparation method. The carbon dioxide absorbent includes the sodium hydroxide which is the added auxiliary absorbing agent of the lithium hydroxide, and the aluminium sesquioxide of the intensifier. The preparation method of the carbon dioxide absorbent is that the lithium hydroxide is crashed to the extent with the granularity larger than 80-screen mesh by a disintegrator, the sodium hydroxide and the aluminium sesquioxide are dried, and then are mixed evenly pro rata, the mixed materials are fed into a rotary tablet pressing machine for being pressed to tablet shapes, and then are put into the oven for drying. The carbon dioxide absorbent containing the lithium hydroxide is added with the sodium hydroxide and the aluminium sesquioxide, and the intensity is increased obviously. The percentage of the dust is less than or equal to zero point four percent, the phenomena of throat choking are obviously reduced, and the humidity of the exhaled gas is largely reduced, the gas is easy to be cooled after being inhaled, so people who wear the respirator containing the carbon dioxide absorbent will feel more comfortable. The preparation method is rather simple.

Description

technical field

[0001] The invention relates to a solid absorbent for absorbing gas, in particular to a carbon dioxide absorbent mainly based on lithium hydroxide and a preparation method. It is mainly used in respirators to absorb carbon dioxide exhaled by the human body. Background technique

[0002] The respirator is a breathing device used to protect human respiratory organs and protect people's health and life safety in places with hypoxia, anaerobic or toxic and harmful gases in the environment. With the development of society, the space for human activities has become wider and wider, including space, underground, water and deadly dangerous places. In many fields of human activities, the protection of respirators must be relied on to ensure people's health and life safety. The application fields of respirators include almost all fields of human activities, including aerospace, military, mining, nuclear industry, fire protection, scientific research, urban constructi...