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Medical carbon dioxide absorbent soda lime and preparation method thereof

A technology of carbon dioxide and absorbent, applied in chemical instruments and methods, separation methods, and separation of dispersed particles, etc., can solve problems that are difficult to meet clinical needs, and achieve the effect of satisfying CO2 absorption rate, good friability, and not easy to dry

Inactive Publication Date: 2011-11-30
SHANGHAI INST OF PHARMA IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the samples obtained by this prescription process are difficult to meet the clinical needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] formula:

[0059] weight

[0060] Component (g)

[0061] Ca(OH) 2 500.00

[0062] NaOH 35.71

[0063] KOH 21.43

[0064] CaCl 2 2.86

[0065] Sodium carboxymethyl starch 21.43

[0066] Ethyl Violet 5.71

[0067] According to the above formula, mix Ca(OH)2, NaOH, KOH, humectant CaCl2 and pH indicating dye ethyl violet with 300g of water, then add disintegrant sodium carboxymethyl starch and water, the weight of water added is Ca (OH)2, NaOH, KOH, humectant CaCl2, 3% of the total weight of pH indicator dyeing agent ethyl violet and carboxymethyl starch sodium, made of soft material, extruded, and prepared as a diameter of 3mm and a height of 10mm The cylinder was dried at 110° C. for 3 hours to obtain a hard dry sample. After sieving to remove fine powder, water was sprayed on the obtained dry product until the weight content of water in the product was 17.8%, which was the product.

Embodiment 2

[0069] formula:

[0070] weight

[0071] Component (g)

[0072] Ca(OH) 2 500.00

[0073] NaOH 20.00

[0074] KOH 13.33

[0075] CaCl 2 6.67

[0076] Sodium carboxymethyl starch 33.33

[0077] Dadan Huang 6.67

[0078] According to the above formula, the Ca(OH) 2 , NaOH, KOH, CaCl 2 Add 290g of water to Dandanhuang, then add disintegrant CMS-Na and water, the weight of water added is Ca(OH)2, NaOH, KOH, moisturizing agent CaCl2, pH indicating dye ethyl violet and CMS-Na 3% of the total weight, made into a soft material, extruded, prepared into a cylinder with a diameter of 2.5mm and a height of 3mm, dried at 90°C for 4 hours to obtain a hard dry sample, sieved to remove fine powder, and then water Spray on the obtained dry product, the spraying amount of water is: until the weight content of water in the product is 13.0%, it is the product.

Embodiment 3

[0080] formula:

[0081] weight

[0082] Component (g)

[0083] Ca(OH) 2 500.00

[0084] NaOH 25.64

[0085] KOH 6.41

[0086] CaCl 2 3.85

[0087] Crospovidone 25.64

[0088] Dadan Yellow 0.025

[0089] The preparation method is the same as in Example 1, and the spraying amount of water is: until the weight content of water in the product is 11.80%, which is the product.

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PUM

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Abstract

The invention discloses soda lime as a medical carbon dioxide absorbent and a preparation method thereof. The soda lime comprises the following components in percentage by weight: 75-85% of Ca(OH), 0.5-5% of NaOH, 0-3% of KOH, 0.1-1% of humectant, 0.5-5% of disintegrating agent, 0.005-1% of pH indication coloring agent and 10-20% of water. The soda lime prepared by the invention has better friability, is uneasy to generate fine power and dry, and the CO2 absorption rate meets the requirement of national drug standards.

Description

technical field [0001] The invention relates to a medical carbon dioxide absorber soda lime, which is mainly used in fields such as chemical analysis, coal mining, diving, aerospace and the like for absorbing carbon dioxide exhaled by human body in the anesthesia circulation system of a hospital and traditional soda lime. Background technique [0002] As early as 1777, Swedish scientist Scheele discovered that lime water can absorb CO produced by animal respiration. 2 , and during World War I, scientists invented sustainable soda lime products, and during 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, respiratory care, hyperbaric chambers, submarines, etc. Soda lime has been favored by people for a long time because of its high quality, high efficiency and convenient use. [0003] Carbon dioxide absorbent is an indispensable part of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/82B01D53/62
CPCY02A50/20
Inventor 金方叶娟张熹汤忞
Owner SHANGHAI INST OF PHARMA IND CO LTD
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