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Preparation method and application of N-nitrosamine toxicant composite imprinted sheet

A nitrosamine and sheet technology is applied in the field of N-nitrosamine poison composite imprinted sheet, which can solve the problems of reducing the smoking characteristics of cigarettes, lack of predetermined selectivity, etc., and achieve the advantages of reducing tobacco toxicity, improving usability and reducing production costs Effect

Inactive Publication Date: 2018-12-18
JISHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these adsorption media and technologies have shown certain adsorption and removal capabilities for smoke TSNAs to a certain extent, due to their lack of predetermined selectivity, they also adsorb tobacco aroma components during the process of removing smoke poisons, thereby Reduced smoking characteristics of cigarettes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Preparation of supporting materials:

[0015] Weigh chromium nitrate nonahydrate and terephthalic acid respectively at a molar ratio of 1:2.1, add them to 60mL deionized water, then add a small amount of hydrofluoric acid, stir ultrasonically, and pour the mixture into the reaction kettle, seal and After reacting at 493K for 10 hours, after cooling, filter with a microporous membrane, wash the solid with deionized water and DMF respectively, add the solid to ethanol and transfer it to the reactor again, and react at 373K for 18 hours . Cool to room temperature, filter and wash repeatedly with ethanol, vacuum dry, grind and sieve to obtain green solid powder. Put the green solid powder into a round-bottomed flask, add anhydrous toluene and stir evenly. After treating with nitrogen for 5 minutes, add 8.0 mmol ethylenediamine-aminomethanesulfonic acid mixture (molar ratio 1:1) mixture, and reflux for 10- After cooling for 12 hours, filter and wash the solid repeatedl...

Embodiment 2

[0022] (1) Preparation of supporting materials:

[0023] Weigh chromium nitrate nonahydrate and terephthalic acid respectively at a molar ratio of 1:6.1, add them to 60mL deionized water, then add a small amount of hydrofluoric acid, stir ultrasonically, and pour the mixture into the reaction kettle, seal and After reacting at 493K for 10 hours, after cooling, filter with a microporous membrane, wash the solid with deionized water and DMF respectively, add the solid to ethanol and transfer it to the reactor again, and react at 373K for 18 hours . Cool to room temperature, filter and wash repeatedly with ethanol, vacuum dry, grind and sieve to obtain green solid powder. Put the green solid powder into a round-bottomed flask, add anhydrous toluene and stir evenly. After treating with nitrogen for 5 minutes, add 8.0 mmol ethylenediamine-aminomethanesulfonic acid mixture (molar ratio 1:1) mixture, and reflux for 10- After cooling for 12 hours, filter and wash the solid repeatedl...

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Abstract

The invention provides a preparation method and application of N-nitrosamine toxicant composite imprinted sheet. (1) preparation of supporting materials: chromium nitrate nonahydrate and terephthalicacid are weighed by mole ratio and added into 80mL deionized water, then a small amount of hydrofluoric acid is added to prepare supporting materials; (2) preparation of N-nitrosamine imprinting material: weighing the supporting material and reacting with deionized water-DMSO to obtain N-nitrosamine imprinting material; (3) tablet pressing: weighing the above-mentioned N-nitrosamine solid powder and pressing it into a circular sheet with a special mold. The imprinted sheet of the invention can be arranged in a cigarette filter, and when the cigarette is burned and sucked, the imprinted sheet is used for selectively adsorbing N-Nitrosamine toxicant, selective reduction of N-nitrosamine concentration 30-60%, and that imprinted sheet can be reused after being recovered and treated, thereby reduce the production cost.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a preparation method and application of a composite imprinted sheet capable of selectively removing N-nitrosamine poisons in flue gas. Background technique [0002] Tobacco is a traditional industry in my country, and it still plays an important role in the development of the national economy. However, "smoking is harmful to health" has restricted the development of the tobacco industry to a certain extent, mainly because tobacco contains a large number of harmful components, which seriously endanger human health, and N-nitrosamines (TSNAs) are one of them . The formation and accumulation of tobacco TSNAs are produced during the tobacco leaf curing process, and are formed by the reaction of nitrogen oxides formed during tobacco pyrolysis with alkaloids such as nicotine and nornicotine. [0003] Common tobacco N-nitrosamine compounds mainly include methyl ethyl nitrogen ...

Claims

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Application Information

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IPC IPC(8): A24B3/14B01J20/26B01J20/30B01D53/04
CPCA24B3/14B01D53/04B01D2257/40B01J20/268
Inventor 李辉宋俊杰黄信慧张月
Owner JISHOU UNIVERSITY
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