Efficient medical soda lime and preparation method thereof

Abstract

The invention discloses efficient medical soda lime and a preparation method thereof. The efficient medical soda lime is prepared from the following raw materials in parts by weight: 80 to 85 parts of calcium hydroxide, 0.5 to 5 parts of calcium sulfate hemihydrate, 0.1 to 1 part of a moisture absorbent, 0.1 to 5 parts of a rigidity regulator, 1 to 5 parts of a de-foaming agent, 0.05 to 1 part of a pH (Potential of Hydrogen) indication dyeing agent and 12 to 19 parts of water. The efficient medical soda lime disclosed by the invention has the following advantages that the rigidity regulator and the foaming agent are combined to use and the defect of an existing product that the rigidity and CO2 absorption rate cannot be both considered is overcome; the moisture absorbent is added and is used for absorbing moisture and strong alkali in the prior art is replaced so that a condition that the strong alkali and anesthetics including sevoflurane and the like react to generate harmful olefin or CO is avoided; meanwhile, the moisture of the calcium hydroxide is kept and absorption of carbon dioxide of the next step is facilitated; the calcium hydroxide is used as a main acting component and reacts with the acidic gas CO2 to absorb the CO2; in a preparation process, a lot of heat is not generated; the preparation process is easy to control, the cost is low and a technology is simple, safe and controllable.

Description

technical field [0001] The invention relates to a medical carbon dioxide absorbent, in particular to high-efficiency medical soda lime and a preparation method thereof. Background technique [0002] As early as 1777, Swedish scientist Secheele discovered that lime water can absorb CO produced by animal respiration. 2 , and during World War I, scientists invented sustainable soda lime products, and in World War II, it became an important ingredient in the breathing masks of soldiers in the army. Soda lime is currently used as CO 2 Absorbents have been widely used, mainly for anesthesia breathing, respiratory care, hyperbaric chambers, submarines, underground rescue cabins, safety respirators, etc. Soda lime has been favored by people for a long time because of its low price, high efficiency and convenient use. Carbon dioxide absorbent is an indispensable part of closed-circuit anesthesia (or low-flow inhalational anesthesia), and soda lime is one of the more commonly used ...

AI Technical Summary

Problems solved by technology

These two patents do not contain NaOH and KOH, which can reduce the degradation of anesthetics to a certain extent, but they absorb CO 2 ability will also decrease

[0005] In addition, due to the low hardness of conventional soda lime and high dust during transportation, it is easy to block the breathing pipeline. If the hardness of the product is simply increased, the absorption efficiency will be low