Preparation method of medical carbon dioxide adsorbent calcium lime

A carbon dioxide and absorbent technology, applied in the medical field, can solve the problems of low absorption rate, poor binding force of soda lime particles, and low strength, and achieve the effects of sensitive color change, easy visual judgment, and uniform particle size

Inactive Publication Date: 2019-03-22
江苏立峰生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many soda lime manufacturers in China, but the internal cohesion of soda lime product particles is poor and relatively soft, and it is easy to generate a lot of dust during transportation
Currently domestically produced carbon dioxide absorbents have low strength and low absorption rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing medical carbon dioxide absorbent calcium lime, comprising the following components in weight percentage: main absorbent 50%, moisturizer 3%, lithium hydroxide 3%, triethanolamine 3%, enhancer 3%, polyvinyl alcohol 3%, PH indicator dye 3%, disintegrant 3%, the balance is water:

[0029] The specific preparation steps are as follows:

[0030] Step 1: Make the main absorbent, pulverize and pass through an 800-mesh sieve to obtain the main absorbent powder for use.

[0031] Step 2: Mix the main absorbent, humectant and enhancer according to the mass percentage of 77:4:3, stir for 1 hour to be basically uniform, prepare a PVA solution with a mass fraction of 8wt% in a water bath, and prepare a pH of 15g / L Indicator stain solution;

[0032] Step 3: Weigh 0.5g / L of adhesive and dissolve it in water until it is almost dissolved, add 0.75g / L of alkaline agent solution and stir until it is basically uniform, and then add it to the solution of step two;

[0033] Ste...

Embodiment 2

[0043] A method for preparing medical carbon dioxide absorbent calcium lime, comprising the following components in weight percentage: main absorbent 55%, humectant 5%, lithium hydroxide 5%, triethanolamine 5%, enhancer 5%, polyvinyl alcohol 5%, PH indicator dye 5%, disintegrant 5%, the balance is water:

[0044] The specific preparation steps are as follows:

[0045] Step 1: Make the main absorbent, pulverize and pass through an 800-mesh sieve to obtain the main absorbent powder for use.

[0046] Step 2: Mix the main absorbent, humectant and enhancer according to the mass percentage of 77:4:3, stir for 1 hour to be basically uniform, prepare a PVA solution with a mass fraction of 8wt% in a water bath, and prepare a pH of 15g / L Indicator stain solution;

[0047] Step 3: Weigh 0.5g / L of adhesive and dissolve it in water until it is almost dissolved, add 0.75g / L of alkaline agent solution and stir until it is basically uniform, and then add it to the solution of step two;

[0048] Step ...

Embodiment 3

[0058] A method for preparing medical carbon dioxide absorbent calcium lime, including the following components in weight percentage: main absorbent 52.5%, humectant 4%, lithium hydroxide 4%, triethanolamine 4%, enhancer 4%, polyvinyl alcohol 4%, pH indicator dye 4%, disintegrant 4%, the balance is water:

[0059] The specific preparation steps are as follows:

[0060] Step 1: Make the main absorbent, pulverize and pass through an 800-mesh sieve to obtain the main absorbent powder for use.

[0061] Step 2: Mix the main absorbent, humectant and enhancer according to the mass percentage of 77:4:3, stir for 1 hour to be basically uniform, prepare a PVA solution with a mass fraction of 8wt% in a water bath, and prepare a pH of 15g / L Indicator stain solution;

[0062] Step 3: Weigh 0.5g / L of adhesive and dissolve it in water until it is almost dissolved, add 0.75g / L of alkaline agent solution and stir until it is basically uniform, and then add it to the solution of step two;

[0063] Step...

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PUM

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Abstract

The invention discloses a preparation method of medical carbon dioxide adsorbent calcium lime. The medical carbon dioxide adsorbent calcium lime comprises the following components in percentage by weight: 50 to 55 percent of a main absorbent, 3 to 5 percent of a wetting agent, 3 to 5 percent of lithium hydroxide, 3 to 5 percent of triethanolamine, 3 to 5 percent of an enhancer, 3 to 5 percent of polyvinyl alcohol, 3 to 5 percent of a PH indicating coloring agent, 3 to 5 percent of a disintegrating agent and the balance of water. The preparation method specifically comprises the following preparation steps: 1, preparing the main absorbent, pulverizing and passing through a 800-mesh sieve to obtain main absorbent powder for future use; 2, mixing the main absorbent, the wetting agent and theenhancer according to the mass percentage ratio of 77:4:3 to perform preparation, stirring for 1 hour until the materials are basically uniform, preparing a PVA solution with the mass percentage of 8percent by weight according to a water bath method, and preparing a pH indicating coloring agent solution of 15 g/L. Calcium hydroxide serves as a main component, the calcium hydroxide can react withacidic gas CO2, has certain hardness and is not liable to absorb moisture, and lots of heat is not generated during preparation, so that the cost is low, and the whole process is simple, safe, controllable and suitable for being widely popularized.

Description

Technical field [0001] The invention relates to the field of medical technology, in particular to a preparation method of calcium lime as a medical carbon dioxide absorbent. Background technique [0002] As early as 1777, Swedish scientists discovered that lime water can absorb CO2 produced by animal breathing. During the First World War, scientists invented sustainable soda lime products and became soldiers' breathing masks in the army during World War II. An important ingredient in. Carbon dioxide adsorbent is an indispensable part of cyclic closed anesthesia. The most common carbon dioxide adsorbent is slaked lime, which is the main absorbent. Of course, there are many kinds of hydrated lime, calcium lime and soda lime, of which soda lime is the most common absorbent. There are many soda lime manufacturers in China, but soda lime products have poor internal binding force and are relatively soft, which easily generate a lot of dust during transportation. The current domestic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/82B01D53/62
CPCB01D53/62B01D53/82B01D2251/404B01D2257/504Y02A50/20
Inventor 戴俊峰
Owner 江苏立峰生物科技有限公司
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