Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of adsorbent capable of effectively reducing content of crotonaldehyde in cigarette smoke

A technology for cigarette smoke and crotonaldehyde, which is applied to chemical instruments and methods, other chemical processes and other directions, can solve problems such as the inability to prepare molecularly imprinted polymers of crotonaldehyde, and achieve the effects of low cost, obvious effect and simple operation.

Inactive Publication Date: 2013-02-27
HONGYUN HONGHE TOBACCO (GRP) CO LTD
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the crotonaldehyde molecule has a carbon-carbon double bond, it can polymerize with functional monomers and cross-linking agents, so conventional molecular imprinting methods cannot prepare molecularly imprinted polymers of crotonaldehyde
There is no report on the selective reduction of crotonaldehyde in cigarette smoke

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of adsorbent capable of effectively reducing content of crotonaldehyde in cigarette smoke
  • Preparation method of adsorbent capable of effectively reducing content of crotonaldehyde in cigarette smoke
  • Preparation method of adsorbent capable of effectively reducing content of crotonaldehyde in cigarette smoke

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Choose n-butyraldehyde as the template molecule, the functional monomer is α-methacrylic acid (MAA), 2-vinylpyridine (2-VP), 4-vinylpyridine (4-VP) or acrylamide (AM) One, ethylene glycol dimethacrylate (EGDMA) as the crosslinking agent, azobisisobutyronitrile (AIBN) as the initiator.

[0020] Weigh 0.1mmol of n-butyraldehyde and dissolve it in 10mL of methanol, add the specified amount and specified type of functional monomer according to Table 1, and shake at a constant temperature at 25°C for 3 hours to fully react the imprinted molecules and functional monomers, then add the specified amount EDGMA and different amounts of AIBN, mix well, transfer to 50mL glass ampoule, pass N 2 Deoxidize for 5-10 minutes, then seal it under anaerobic conditions and place it in a constant temperature shaker at 60°C for 24 hours, then filter directly. The obtained polymer was Soxhlet extracted with 1:9 (v / v) glacial acetic acid-methanol solution until there were no imprinted molecul...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of an adsorbent capable of effectively reducing content of crotonaldehyde in cigarette smoke. Butyraldehyde is taken as a dummy template, methacrylic acid, acrylamide, 2-vinylpyridine or 4-vinylpyridine are taken as functional monomers, methanol is taken as a pore-foaming agent, ethylene glycol dimethacrylate is taken as a cross-linking agent, and a precipitation polymerization method is adopted to synthesize the adsorbent. The surface of the obtained polymer is provided with a large number of spatial structures similar to the structure of a crotonaldehyde molecule and reaction sites, and high selective adsorption performance is provided. The addition volume can be adjusted freely as required when the adsorbent is applied to a complex filter. When the addition volume is 10mg per filter, the reduction rate of the crotonaldehyde in the smoke is 20.9%, and the relative reduction rate of tar is 7.5%; and when the addition volume is 20mg per filter, the reduction rate of the crotonaldehyde in the smoke is 39.5%, the relative reduction rate of the tar is 17.7%, and the selective adsorption effect on crotonaldehyde is quite obvious.

Description

technical field [0001] The invention belongs to the technical field of cigarette material preparation, and in particular relates to a preparation method of an adsorbent capable of effectively reducing the content of crotonaldehyde in cigarette smoke. Background technique [0002] The smoke produced by the burning of cigarettes contains various harmful components such as carbon monoxide and crotonaldehyde. Crotonaldehyde is more toxic than similar saturated aldehydes, and has a strong stimulating effect on the conjunctiva and upper respiratory tract mucosa. Long-term exposure can cause chronic rhinitis, nervous system dysfunction, conjunctivitis, corneal damage, etc., which is not conducive to human health. Therefore, selectively reducing the content of crotonaldehyde in cigarette smoke (relative to the content of tar) is of great significance to cigarette manufacturers. [0003] Because crotonaldehyde molecules have carbon-carbon double bonds and can polymerize with functio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08F222/14C08F220/06C08F226/06C08F220/56C08F2/44C08J9/28B01J20/26B01J20/30
Inventor 夏建军段焰青王明锋王文元蒋举兴刘亚陈兴
Owner HONGYUN HONGHE TOBACCO (GRP) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com