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Use of amino-functional material for reducing hydrogen cyanide content of cigarette smoke

A technology of amino functionalization and cigarette mainstream smoke, applied in the fields of application, tobacco, inorganic chemistry, etc., to achieve good effect, simple preparation method and convenient operation

Active Publication Date: 2014-09-10
SHANGHAI TOBACCO GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an application of an amino-functionalized mesoporous silicon oxide material that reduces the hydrogen cyanide content in cigarette mainstream smoke to solve the problem of cigarette mainstream smoke. Adsorption and removal of hydrogen cyanide in gas

Method used

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  • Use of amino-functional material for reducing hydrogen cyanide content of cigarette smoke
  • Use of amino-functional material for reducing hydrogen cyanide content of cigarette smoke
  • Use of amino-functional material for reducing hydrogen cyanide content of cigarette smoke

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Preparation of amino-functionalized mesoporous silica MCM41 with high specific surface area:

[0031] 1. Preparation of mesoporous silica MCM41: Mix 648g of cetyltrimethylammonium bromide (CTABr), 3500g of water and 320g of 2mol / L NaOH solution at room temperature and stir to dissolve, then add 350g of tetraethyl ammonium Based orthosilicate (TEOS), continue to stir at room temperature for 20 minutes, then transfer to a super constant temperature tank for aging at 100 ° C for 2 days, filter, wash the obtained filtrate with distilled water until it is nearly neutral, and then place it at 80 ° C Vacuum drying for 24 hours, followed by calcination at 550°C for 6 hours, and natural cooling to room temperature to obtain the mesoporous silicon oxide material MCM41.

[0032] 2. Preparation of amino-functionalized mesoporous silica MCM41 adsorbent: Take 100 g of the above-mentioned newly prepared mesoporous silica MCM-41 in a 5L round bottom flask, add 3-propylamino trimethyl a...

Embodiment 2

[0038] The high specific surface area amino-functionalized mesoporous silica MCM41 adsorbent of this example was prepared according to the method steps of Example 1. The amino-functionalized mesoporous silica MCM41 adsorbent (hereinafter referred to as the adsorbent) obtained in this example was sieved, and the adsorbent particles with a particle size of 80-100 mesh were selected; the adsorbent particles were placed in the middle layer of the ordinary filter tip, The upper layer and the lower layer of the cellulose acetate filter without adding the adsorbent form a sandwich type composite filter, and the amount of the adsorbent in each cigarette is 20 mg. According to the requirements of GB / T 16447, the cigarette samples used were balanced for 48 hours at (22±1)°C and (60±3)% relative humidity. After sorting by weight and draw resistance, uniform experimental cigarettes were selected Samples were smoked on a Cerulean SM450 linear smoking machine (Cerulean, UK). Use dilute sod...

Embodiment 3

[0040] The high specific surface area amino-functionalized mesoporous silica MCM41 adsorbent of this example was prepared according to the method steps of Example 1. The amino-functionalized mesoporous silica MCM41 adsorbent obtained in this example (hereinafter referred to as adsorbent) was sieved, and adsorbent particles with a particle size of 80-100 mesh were selected; the selected adsorbent particles were evenly sprayed on the filter rod Between the acetate tow and the filter rod without sorbent particles to form a composite filter with an upper and lower structure (the layer of the composite filter near the human mouth is the filter rod layer without sorbent particles, and the other layer is connected to the cigarette ), the amount of adsorbent in each cigarette is 60mg. According to the requirements of GB / T1 6447, the cigarette samples used were balanced for 48 hours at (22±1)°C and (60±3)% relative humidity. After sorting by weight and draw resistance, uniform experime...

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Abstract

The invention relates a use of a functional material in a cigarette field and especially relates to a use of an amino-functional material for reducing hydrogen cyanide content of cigarette main smoke. The amino-functional material is an amino-functional mesoporous silica adsorption material. The amino-functional mesoporous silica adsorption material MCM41 having a high specific surface area has an effect of obviously reducing hydrogen cyanide content of cigarette main smoke, has an adsorption rate of 20.5%, reduces the damage on a smoker and does not influence a cigarette taste. The amino-functional mesoporous silica adsorption material MCM41 has a high specific surface area of 300 to 550m<2> / g and uniform aperture sizes of 1.2 to 1.8nm, and also has a good hydrogen cyanide adsorption effect. A method for preparing a composite filter tip from the amino-functional mesoporous silica adsorption material MCM41 is simple, is convenient for operation and has a low cost.

Description

technical field [0001] The invention relates to the application of functional materials in the field of cigarettes, in particular to the application of an amino functionalized mesoporous silicon oxide adsorption material for reducing the content of hydrogen cyanide in cigarette mainstream smoke. Background technique [0002] Hydrocyanic acid is a Class A highly toxic substance. It is a colorless or light blue liquid or gas at room temperature. It has an almond-like smell and a slightly bitter taste. It is soluble in water and ethanol, and slightly soluble in ether. acidic. After inhalation, hydrocyanic acid can replace the oxygen in the hemoglobin to generate cyanated hemoglobin, which makes the hemoglobin lose the function of transmitting oxygen, causes tissue hypoxia and poisoning, and is very harmful to human health. [0003] Human activities can lead to the formation of cyanide. For example, hydrogen cyanide is contained in automobile exhaust and cigarette smoke, and h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/10B01D53/04A24D3/16
Inventor 杨征宇刘百战郑赛晶周宛虹陈敏张怡春
Owner SHANGHAI TOBACCO GRP CO LTD
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