CN106954891A - A kind of filter tip for being used to adsorb heavy metal in cigarette smoke - Google Patents
A kind of filter tip for being used to adsorb heavy metal in cigarette smoke Download PDFInfo
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- CN106954891A CN106954891A CN201710229867.8A CN201710229867A CN106954891A CN 106954891 A CN106954891 A CN 106954891A CN 201710229867 A CN201710229867 A CN 201710229867A CN 106954891 A CN106954891 A CN 106954891A
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- China
- Prior art keywords
- heavy metal
- adsorbent
- polyethyleneimine
- cigarette
- silica gel
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Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
Abstract
The present invention discloses a kind of filter tip for being used to adsorb heavy metal in cigarette smoke, and the filter material of the filter tip includes the amine-modified adsorbent of polyethyleneimine, and the preparation method of the adsorbent is：Silica gel is activated first, Silica Surface is generated silicone hydroxyl；Then equi-volume impregnating is used again, the silica gel after having activated is immersed in aq. polyethyleneimine, stirred evenly, and is placed under infrared lamp and is toasted；It is last to be dried to faint yellow solid and can obtain the adsorbent of polyethyleneimine modification.The present invention has the effect of good Adsorption of Heavy Metals；The preparation method of adsorbent of the present invention, it is simple to operate, without crosslinking agent, reduce production cost and suitable for large-scale production；Adsorbent of the present invention can realize quick heavy metal adsorption, achieve unexpected effect.
Description
Technical field
The invention belongs to cigarette material field, it is related to cigarette filter tip, and in particular to one kind is used to adsorb in cigarette smoke
The filter tip of heavy metal.
Background technology
With the continuous improvement of living standard, consumer is to itself healthy protective awareness and environmental consciousness also continuous
Enhancing, requirement to safety cigarette also more and more higher.Therefore, the cigarette product of exploitation less harmful is a kind of trend.Cigarette cigarette
Heavy metal in gas is mainly derived from tobacco in itself, and the heavy metal element in tobacco is mainly derived from tobacco planting environment and contained
There are soil, water and air of heavy metal pollution etc..The heavy metal elements such as lead, arsenic, cadmium, chromium, mercury in tobacco can with aerosol or
The form of metal oxide enters human body by flue gas, after accumulation is formed, may be damaged to human body.Research finds one
In the flue gas of cigarette, it is cadmium to be easiest to absorbed heavy metal.It is main at present to use for the control of content of beary metal in tobacco
Two kinds of thinkings, are on the one hand effective control to tobacco leaf home environment heavy metal, and the tobacco variety that focuses on of research is screened
In terms of biotechnology.The content and existing forms of heavy metal directly affect the absorption of tobacco leaf heavy metal in production smoke hallway
The content of soluble heavy metal is higher in rate, general soil, and the absorptivity of tobacco leaf heavy metal is also higher, and its absorptivity is by soil
The influence of the factors such as earth PH, clay, organic matter and cation exchange capacity.On the other hand used during production of cigarettes
Technology reduces content of beary metal in main flume, and research focuses on filter tip absorption retention technology.It is generally acknowledged that filter tip
Heavy metal particles thing in adsorbable flue gas, reduces its harm to human body.Have been developed that active carbon filter and other one now
The preferable NEW TYPE OF COMPOSITE filter tip of a little effects, has absorption to poisonous and hazardous micro- (cadmium, nickel, arsenic) and organic compound etc.
Effect, have result of study show active carbon filter be respectively to Cd, Ni and As adsorption capacity acetate fiber filter tip 4.25,
I.61 times 3.58 and, adsorption effect is remarkably reinforced.The composite filter tip that acetate fiber is prepared with radix scutellariae, can effectively reduce cigarette main flow
The paramorphogen of cadmium and lead in flue gas, for reducing smoker's suction heavy metal lead, the Cumulative exposure dose of cadmium with being deposited in intrapulmonary
With positive effect.In addition, the Active carbon composite filter of chitosan-containing has to the heavy metal in flue gas and other harmful substances
Stronger selection absorbability.Zhou Guojun etc. result of study shows, by one kind in copper chlorophyll and chlorophyllin sodium or two
The ester of triacetin three kind is added to, sprays into tow, or is prepared into 40-80 mesh particles and be added in mouth rod, can be effective
Catching heavy metal.Wang Ying etc. research shows that CNT has stronger selective absorption effect to heavy metals such as Cd, Pb.
The porous presence of Silica Surface increases the specific surface area of adsorbent, reduces the diffusional resistance of solute, beneficial to being rapidly achieved suction
Attached balance.Meanwhile, amino, carboxyl etc. functional groups are made on adsorbent band come chelant or a complexing huge sum of money by surface modification
Category ion is also an important channel for improving absorption property.Polyethyleneimine is a kind of high molecular weight water soluble polymer, its point
Possess substantial amounts of amido N atoms in subchain, heavy metal has very strong chelant ability.This characteristic has caused domestic and international
The extensive concern of person, and it has been applied to numerous research fields.In actual adsorption applications, due to the water of polyethyleneimine
The characteristics of dissolubility, is, it is necessary to by being fixed water-soluble polyethylene imines from suitable carrier, it is ensured that it adsorbs a huge sum of money in waste water
Belong to the operability of ion.The performance of carrier is directly connected to the application effect of adsorbent, and easy to operate, modification effect is good and not
The polyethyleneimine method of modifying for destroying the original physical behavior of silica gel is an important research direction.
The content of the invention
It is an object of the invention to provide a kind of filter tip for being used to adsorb heavy metal in cigarette smoke, the filter tip is using absorption
The amine-modified adsorbent of the polyethyleneimine that works well, the heavy metal effect that the adsorbent is not only adsorbed in cigarette smoke is good, and
And manufacture craft is simple, low production cost and suitable for large-scale production.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of filter tip for being used to adsorb heavy metal in cigarette smoke, the filter tip filter material includes the amine-modified absorption of polyethyleneimine
Agent, the preparation method of the amine-modified adsorbent of the polyethyleneimine specifically includes following steps：
(1) silica gel is activated, Silica Surface is generated silicone hydroxyl；
(2) equi-volume impregnating is used, the silica gel after having activated is immersed in aq. polyethyleneimine, stirred evenly, so
After be placed under infrared lamp toast, be finally dried to faint yellow solid；
Silica gel particle size is 45-55 mesh, and the molecular weight of polyethyleneimine is 65500 or is 12000, and preferred molecular weight is
The mass ratio of 65500 high molecular weight polyethyleneimine, polyethyleneimine and silica gel is 8-13:100, preferably 12:100；
Cigarette after suction addition adsorbent of the present invention, collects the granule phase substance and gas gas-phase objects of flue gas, is detected with ICPMS respectively
Wherein content of beary metal, while detecting that nicotine, tar in control cigarette sample and experiment cigarette sample main flume etc. are conventional
Composition.
Beneficial effects of the present invention：The present invention is used on the silica gel of polyethyleneimine uniform load after activation, passes through table
Face modification makes the functional groups such as a large amount of amino and carboxyl on adsorbent band, and absorption is substantially increased by chelating or complexing
The adsorption capacity of agent and the selectivity of absorption, and the adsorbent is added in cigarette filter first, achieve good absorption
The effect of heavy metal；
The preparation method of the amine-modified heavy metal absorbent of polyethyleneimine of the present invention, simple to operate, without crosslinking agent, reduction
Production cost and suitable for large-scale production；
The amine-modified heavy metal absorbent of polyethyleneimine of the present invention in the preparation, because silica gel is entered by directly heating method
Row activation maintains the mechanical strength of silica gel significantly without being activated by acid treatment, it is to avoid when being stirred in synthesis
Situation about being blended, overcomes the shortcoming that original physical behavior of silica gel after adsorbent is activated in manufacturing process is destroyed,
So as to avoid after the completion of prepared by adsorbent because stirring makes silica gel stirring into the drawbacks of powder needs to granulate again, reality is simplified
Test operation and remain original physical absorption attribute of silica gel；
Adsorbent of the present invention can realize that heavy metal adsorption General reactions time in quick heavy metal adsorption, aqueous phase can be compared with
Long, and the heavy metal adsorption reaction time in cigarette smoke is very short, the time of contact of flue gas and adsorbent is only during cigarette smoking
For Millisecond, it is desirable to which adsorbent can realize quick heavy metal adsorption；
The porous presence of Silica Surface that the present invention is selected increases the specific surface area of adsorbent, reduces the diffusion of solute
Resistance, beneficial to adsorption equilibrium is rapidly achieved, is more suitable for being conjointly employed in gas phase with polyethyleneimine and inhales than general carrier
Attached heavy metal, in a word, the combination of both silica gel and polyethyleneimine causes adsorbent, and heavy metal arrests ability significantly in the gas phase
Enhancing, can be seen that from the data of the embodiment of the present invention and achieves unexpected effect.
Embodiment
A kind of filter tip for being used to adsorb heavy metal in cigarette smoke, the filter tip filter material includes the amine-modified absorption of polyethyleneimine
Agent, the preparation of the amine-modified adsorbent of the polyethyleneimine specifically includes following steps：
(I) silica gel is placed in into 115 DEG C of baking 5.5-7h to be activated, Silica Surface is generated silicone hydroxyl；
(2) isometric proofing method is used, polyethylene of the silica gel proofing after having activated in mass percent 45%-65%
In the imines aqueous solution, stir evenly, dried 3-5 hours at 95-105 DEG C, be subsequently placed under infrared lamp and toast 4-6 hours, finally at 125 DEG C
It is dried to faint yellow solid；
Silica gel particle size is 45-55 mesh, and polyethyleneimine molecular weight is 65500 or 12000, and preferred molecular weight is
The mass ratio of 65500 high molecular weight polyethyleneimine, polyethyleneimine and silica gel is 8-13:100, preferably 12:100.Take out
The cigarette after addition adsorbent of the present invention is inhaled, the granule phase substance and gas gas-phase objects of flue gas are collected respectively, with ICPMS detections wherein heavy metal
Content, while detecting the conventional ingredients such as nicotine, the tar in control cigarette sample and experiment cigarette sample main flume.
Embodiment 1
It will first dry to the silica gel of constant weight and cross 45-55 mesh sieves, be subsequently placed in 115 DEG C of baking oven high temperature heating 6h and activated
Silica gel after being activated；
The low molecular weight polyethylene imines for taking 1.6g molecular weight to be 12000 is dissolved in 50ml deionized waters, fully after dissolving,
Weigh the silica gel after 20.0g activation to be placed in the aqueous solution, stir.95 DEG C are dried 3 hours drying moisture in an oven, then
Be placed under infrared lamp toast 4 hours, finally in an oven 125 DEG C be dried to faint yellow granular solids, be made adsorbent in poly- second
The mass ratio of alkene imines and silica gel is 8:100 low molecular weight polyethylene imines modification adsorbent.
Adsorbent is added in the filter tip of cigarette by the standard for adding 20mg adsorbents according to every cigarette, is made a collection of
Cigarette, humiture balance 24h, using disk type smoking machine under Electrostatic pattern smoking cigarette, collect granule phase substance and gas phase
Thing carries out heavy metal analysis, while carrying out the check experiment of blank cigarette sample.Test main flume of the cigarette with compareing cigarette
Conventional ingredient and heavy metal cadmium, the reduced rate of lead are as shown in the table.
Embodiment 2
The low molecular weight polyethylene imines for taking 0.9g molecular weight to be 12000 is dissolved in 50ml deionized waters, fully after dissolving,
Weigh the silica gel after 10.0g activation to be placed in the aqueous solution, stir.120 DEG C are dried 4 hours drying moisture in an oven, so
After be placed under infrared lamp toast 6 hours, finally in an oven 120 DEG C be dried to faint yellow granular solids.Obtain gathering in adsorbent
The mass ratio of aziridine and silica gel is 9:100 low molecular weight polyethylene imines modification adsorbent.
Adsorbent is added in the filter tip of cigarette by the standard for adding 20mg adsorbents according to every cigarette, is made a collection of
Cigarette, humiture balance 24h, using disk type smoking machine under Electrostatic pattern smoking cigarette, collect granule phase substance and gas phase
Thing carries out heavy metal analysis, while carrying out the check experiment of blank cigarette sample.Test main flume of the cigarette with compareing cigarette
Conventional ingredient and heavy metal cadmium, the reduced rate of lead are as shown in the table.
Embodiment 3
The low molecular weight polyethylene imines for taking 1.20g molecular weight to be 12000 is dissolved in 25ml deionized waters, fully dissolving
Afterwards, weigh the silica gel after 10.0g activation to be placed in the aqueous solution, stir.100 DEG C are dried 4 hours drying moisture in an oven,
Be subsequently placed under infrared lamp toast 6 hours, finally in an oven 125 DEG C be dried to faint yellow granular solids.Obtain in adsorbent
The mass ratio of polyethyleneimine and silica gel is 12:100 low molecular weight polyethylene imines modification adsorbent.
Adsorbent is added in the filter tip of cigarette by the standard for adding 20mg adsorbents according to every cigarette, is made a collection of
Cigarette, humiture balance 24h, using disk type smoking machine under Electrostatic pattern smoking cigarette, collect granule phase substance and gas phase
Thing carries out heavy metal analysis, while carrying out the check experiment of blank cigarette sample.Test main flume of the cigarette with compareing cigarette
Conventional ingredient and heavy metal cadmium, the reduced rate of lead are as shown in the table.
Embodiment 4
The aqueous solution of high molecular weight polyethyleneimine 45% for taking 2.00g molecular weight to be 65500 is dissolved in 50ml deionized waters,
Fully after dissolving, weigh the silica gel after 10.0g activation and be placed in the aqueous solution, stir.100 DEG C are dried 5 hours in an oven
Dry moisture, be subsequently placed under infrared lamp toast 6 hours, finally in an oven 125 DEG C be dried to faint yellow granular solids.Obtain
The mass ratio of polyethyleneimine and silica gel is 9 in adsorbent:100 high molecular weight polyethyleneimine modification adsorbent.
Adsorbent is added in the filter tip of cigarette by the standard for adding 20mg adsorbents according to every cigarette, is made a collection of
Cigarette, humiture balance 24h, using disk type smoking machine under Electrostatic pattern smoking cigarette, collect granule phase substance and gas phase
Thing carries out heavy metal analysis, while carrying out the check experiment of blank cigarette sample.Test main flume of the cigarette with compareing cigarette
Conventional ingredient and heavy metal cadmium, the reduced rate of lead are as shown in the table.
Embodiment 5
The aqueous solution of high molecular weight polyethyleneimine 50% for taking 2.40g molecular weight to be 65500 is dissolved in 50ml deionized waters,
Fully after dissolving, weigh the silica gel after 10.0g activation and be placed in the aqueous solution, stir.105 DEG C are dried 4 hours in an oven
Dry moisture, be subsequently placed under infrared lamp toast 5 hours, finally in an oven 125 DEG C be dried to faint yellow granular solids.Obtain
The mass ratio of polyethyleneimine and silica gel is 12 in adsorbent:100 high molecular weight polyethyleneimine modification adsorbent.
Adsorbent is added in the filter tip of cigarette by the standard for adding 20mg adsorbents according to every cigarette, is made a collection of
Cigarette, humiture balance 24h, using disk type smoking machine under Electrostatic pattern smoking cigarette, collect granule phase substance and gas phase
Thing carries out heavy metal analysis, while carrying out the check experiment of blank cigarette sample.Test main flume of the cigarette with compareing cigarette
Conventional ingredient and heavy metal cadmium, the reduced rate of lead are as shown in the table.
Embodiment 6
The aqueous solution of high molecular weight polyethyleneimine 65% for taking 2.00g molecular weight to be 65500 is dissolved in 25ml deionized waters,
Fully after dissolving, weigh the silica gel after 10.0g activation and be placed in the aqueous solution, stir evenly.105 DEG C are dried drying in 5 hours in an oven
Most of moisture, be subsequently placed under infrared lamp toast 6 hours, finally in an oven 125 DEG C be dried to faint yellow granular solids.
Into adsorbent, the mass ratio of polyethyleneimine and silica gel is 13:100 high molecular weight polyethyleneimine modification adsorbent.
Adsorbent is added in the filter tip of cigarette by the standard for adding 20mg adsorbents according to every cigarette, is made a collection of
Cigarette, humiture balance 24h, using disk type smoking machine under Electrostatic pattern smoking cigarette, collect granule phase substance and gas phase
Thing carries out heavy metal analysis, while carrying out the check experiment of blank cigarette sample.Test main flume of the cigarette with compareing cigarette
Conventional ingredient and heavy metal cadmium, the reduced rate of lead are as shown in the table.
Embodiment 7
The aqueous solution of high molecular weight polyethyleneimine 65% for taking 2.00g molecular weight to be 65500 is dissolved in 25ml ethanol, fully
After dissolving, weigh the silica gel after 10.0g activation and be placed in the aqueous solution, stir evenly.105 DEG C of bakings dry big portion in 5 hours in an oven
Point moisture, is subsequently placed under infrared lamp and toasts 6 hours, finally in an oven 125 DEG C be dried to faint yellow granular solids.Inhaled
The mass ratio of polyethyleneimine and silica gel is 13 in attached dose:100 high molecular weight polyethyleneimine modification adsorbent.
Adsorbent is added in the filter tip of cigarette by the standard for adding 20mg adsorbents according to every cigarette, is made a collection of
Cigarette, humiture balance 24h, using disk type smoking machine under Electrostatic pattern smoking cigarette, collect granule phase substance and gas phase
Thing carries out heavy metal analysis, while carrying out the check experiment of blank cigarette sample.Test main flume of the cigarette with compareing cigarette
Conventional ingredient and heavy metal cadmium, the reduced rate of lead are as shown in the table.
Above content is only citing made for the present invention and explanation, and affiliated those skilled in the art are to being retouched
The specific embodiment stated is made various modifications or supplement or substituted using similar mode, without departing from invention or super
More scope defined in the claims, all should belong to protection scope of the present invention.
Claims (5)
1. a kind of filter tip for being used to adsorb heavy metal in cigarette smoke, it is characterised in that the filter material of the filter tip includes polyethylene
The adsorbent of imines modification, the preparation method of the adsorbent comprises the following steps：
(1) silica gel is activated, Silica Surface is generated silicone hydroxyl；
(2) equi-volume impregnating is used, the silica gel after having activated is immersed in aq. polyethyleneimine, stirs evenly, dry, so
After be placed under infrared lamp toast, be finally dried to faint yellow solid, that is, obtain polyethyleneimine modification adsorbent.
2. a kind of filter tip for being used to adsorb heavy metal in cigarette smoke according to claim 1, it is characterised in that the silicon
Glue granular size is 45-55 mesh.
3. a kind of filter tip for being used to adsorb heavy metal in cigarette smoke according to claim 1, it is characterised in that described poly-
The molecular weight of aziridine is 65500 or 12000.
4. a kind of filter tip for being used to adsorb heavy metal in cigarette smoke according to claim 1, it is characterised in that described poly-
The mass ratio of aziridine and silica gel is 8-13:100.
5. a kind of filter tip for being used to adsorb heavy metal in cigarette smoke according to claim 1, it is characterised in that the institute
Silica gel particle size is stated for 50 mesh, the molecular weight of polyethyleneimine is 65500, the mass ratio of polyethyleneimine and silica gel is 12:
100。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229867.8A CN106954891A (en) | 2017-04-10 | 2017-04-10 | A kind of filter tip for being used to adsorb heavy metal in cigarette smoke |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229867.8A CN106954891A (en) | 2017-04-10 | 2017-04-10 | A kind of filter tip for being used to adsorb heavy metal in cigarette smoke |
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| CN106954891A true CN106954891A (en) | 2017-07-18 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3716063A (en) * | 1970-09-25 | 1973-02-13 | Brown & Williamson Tobacco | Selective gas phase filter material |
| US4266561A (en) * | 1978-04-10 | 1981-05-12 | Brown & Williamson Tobacco Corporation | Tobacco smoke filtering compositions |
| WO1992005713A1 (en) * | 1990-10-04 | 1992-04-16 | Eastman Kodak Company | A combination for improved delivery of tobacco modifying agents |
| CN101194755A (en) * | 2007-12-21 | 2008-06-11 | 湖南中烟工业有限责任公司 | Additive agent selectively reducing aldehydes matter in cigarette flue gas, production method and application thereof |
| CN102948925A (en) * | 2012-11-27 | 2013-03-06 | 湖南中烟工业有限责任公司 | Application method of cigarette smoke heavy metal adsorbent |
| CN102960860A (en) * | 2012-11-27 | 2013-03-13 | 湖南中烟工业有限责任公司 | Application method of cigarette smoke heavy metal ion adsorbent obtained through chemical cross-linking |
-
2017
- 2017-04-10 CN CN201710229867.8A patent/CN106954891A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3716063A (en) * | 1970-09-25 | 1973-02-13 | Brown & Williamson Tobacco | Selective gas phase filter material |
| US4266561A (en) * | 1978-04-10 | 1981-05-12 | Brown & Williamson Tobacco Corporation | Tobacco smoke filtering compositions |
| WO1992005713A1 (en) * | 1990-10-04 | 1992-04-16 | Eastman Kodak Company | A combination for improved delivery of tobacco modifying agents |
| CN101194755A (en) * | 2007-12-21 | 2008-06-11 | 湖南中烟工业有限责任公司 | Additive agent selectively reducing aldehydes matter in cigarette flue gas, production method and application thereof |
| CN102948925A (en) * | 2012-11-27 | 2013-03-06 | 湖南中烟工业有限责任公司 | Application method of cigarette smoke heavy metal adsorbent |
| CN102960860A (en) * | 2012-11-27 | 2013-03-13 | 湖南中烟工业有限责任公司 | Application method of cigarette smoke heavy metal ion adsorbent obtained through chemical cross-linking |
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Application publication date: 20170718 |