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An adsorbent for reducing the release of nitrosamines in mainstream cigarette smoke

A cigarette mainstream smoke and adsorbent technology, applied to tobacco, smoke oil filter elements, other chemical processes, etc.

Active Publication Date: 2016-05-18
CHINA TOBACCO FUJIAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned existing problems, the object of the present invention is to provide an adsorbent capable of significantly reducing the release of tobacco-specific nitrosamines in cigarette smoke and a preparation method thereof

Method used

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  • An adsorbent for reducing the release of nitrosamines in mainstream cigarette smoke
  • An adsorbent for reducing the release of nitrosamines in mainstream cigarette smoke
  • An adsorbent for reducing the release of nitrosamines in mainstream cigarette smoke

Examples

Experimental program
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Effect test

Embodiment 1

[0070] Example 1: Weigh 70 parts of tea stems and 15 parts of gardenia petals according to parts by weight; freeze the tea stems at -20°C for 2 hours, control the moisture content at 5%, and quickly place the tea stems in a refrigerator at 105°C after taking them out. In the oven, let it expand and set. Then cool, crush through a 40-60 mesh sieve, and soak in 0.5mol / L hydrochloric acid solution for 2 hours. Mix L citric acid solution, the dosage of citric acid is 50ml / g gardenia petals, place in a closed container to react at 60°C for 30min, and filter to obtain the filtrate; stir the tea stem particles and the filtrate for 5 hours, then filter, dry, An adsorbent for filter sticks is obtained. The BET specific surface area of ​​the adsorbent is 241m 2 / g. Sieve the adsorbent prepared above, select 40-60 mesh particles, and disperse them in the cellulose acetate tow of the cigarette filter rod to make a binary composite filter rod. Add 15 mg of adsorbent to each filter stic...

Embodiment 2

[0076] Weigh 50 parts of tea stems and 15 parts of gardenia petals by weight; freeze the tea stems at -10°C for 10 hours, control the moisture content at 25%, and quickly place the tea stems in an oven at 150°C after taking them out to make Its swelling set. Then cool, crush through a 40-60 mesh sieve, and soak in 1.5mol / L hydrochloric acid solution for 10 hours. Mix the malic acid solution, the dosage of malic acid is 50ml / g Gardenia petals, place it in a closed container, react at 90°C for 40min, and filter to obtain the filtrate; stir the tea stalk particles and the filtrate for 15 hours, filter, and dry to obtain Sorbent for filter rods. The BET specific surface area of ​​the adsorbent is 225m 2 / g. Sieve the adsorbent prepared above, select 40-60 mesh particles, and disperse them in the cellulose acetate tow of cigarette filter sticks to make binary composite filter sticks. Add 20 mg of adsorbent per stick to each filter stick, and The composite filter rods are rolled...

Embodiment 3

[0082] Weigh 60 parts of tea stems and 15 parts of gardenia petals by weight; freeze the tea stems at -15°C for 7 hours, control the moisture content at 15%, and quickly place the tea stems in an oven at 120°C after taking them out to make Its swelling set. Then cool, crush through a 40-60 mesh sieve, and soak in 1.0mol / L hydrochloric acid solution for 8 hours. Mix L tartaric acid solution, the dosage of tartaric acid is 50ml / g gardenia petals, place in a closed container to react at 80°C for 50min, and filter to obtain the filtrate; stir the tea stem particles and the filtrate for 10 hours, then filter, dry, and obtain the filtrate Stick with adsorbent. The BET specific surface area of ​​the adsorbent is 237m 2 / g. Sieve the adsorbent prepared above, select 40-60 mesh particles, and disperse them in the cellulose acetate tow of cigarette filter sticks to make binary composite filter sticks. Add 10 mg of adsorbent per stick to each filter stick, and The composite filter ro...

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Abstract

The invention relates to an adsorbent for reducing a release amount of nitrosamines in main cigarette flue gas. The adsorbent is prepared from tea stalk particles and cape jasmine petal extract. The tea stalk particles are obtained by crushing tea stalks and immersing the tea stalks in a hydrochloric acid solution. The cape jasmine petal extract is obtained by carrying out extraction on cape jasmine petals by an appropriate solvent, and the solvent is one or more of citric acid, malic acid and tartaric acid. The adsorbent can reduce four specific nitrosamines in main cigarette flue gas. The adsorbent can be prepared by simple processes, is convenient for operation, has a low cost, can coordinate cigarette flue gas by use in a filter rod and can obviously improve flue gas mouthfeel comfortableness.

Description

technical field [0001] The invention belongs to the field of reducing harm and tar of cigarettes, and in particular relates to an adsorbent capable of reducing the release of nitrosamines in mainstream smoke of cigarettes, a preparation method and an application thereof. Background technique [0002] Epidemiological surveys show that smoking can cause lung, bronchial, oral and other diseases in humans. The main pathogenic factors in tobacco and smoke are polycyclic aromatic hydrocarbons, nitrosamines, etc. Among them, tobacco-specific N-nitrosamines (tobacco-specific N-nitrosamines, TSNAs) and N-nitrosonornicotine ( NNN), N-nitrosoanabatin (NAB), N-nitrosoanatabine (NAT) and 4-(N-methyl-N-nitrosamine)-1-(3-pyridyl )-butanone (NNK)-based. This is a class of N-nitrosamine compounds that only exist in tobacco and smoke. It is an organ-specific carcinogen with strong carcinogenicity. Its main target organ is the lung tissue. It plays a very important role in the pathogenesis ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/00B01J20/30A24D3/14
Inventor 邓其馨叶仲力吴清辉黄朝章张建平刘秀彩苏明亮刘江生方钲中谢卫许寒春
Owner CHINA TOBACCO FUJIAN IND
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