CN105029670B - A kind of selectivity reduction method of Zn contents in papermaking-method reconstituted tobaccos extract - Google Patents
A kind of selectivity reduction method of Zn contents in papermaking-method reconstituted tobaccos extract Download PDFInfo
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Abstract
The invention discloses a kind of selectivity reduction method of Zn contents in papermaking-method reconstituted tobaccos extract, it is characterized in that：The diluting compartment of electrodialysis plant will be introduced according to the tobacco extraction liquid prepared by papermaking-method reconstituted tobaccos production technology, electrodialysis process reduction Zn contents are carried out, de- Zn degree is controlled by the change of diluting compartment internal conductance rate or the actual content of Zn during Zn contents are reduced；Nicotine content and organic acid total amount remove the selectivity of Zn to investigate in detection diluting compartment simultaneously.The present invention can not only effectively reduce Zn contents in reconstituted tobacco extract, while the loss of nicotine and the main organic acid of tobacco can be avoided, farthest ensure that the sucking quality of reconstituted tobacco.
Description
Technical field
The present invention relates to a kind of selectivity reduction method of papermaking-method reconstituted tobaccos Zn contents, belong to papermaking-method reconstituted tobaccos
Production technical field.
Background technology
In recent years, with smoking and the aggravation of healthy contradiction, to have become tobacco science important for the security of sucking of cigarette
Research direction.In 107 kinds of cigarette smoke harmful components of the report of U.S. 1989, zinc, copper, arsenic, cadmium, chromium, lead, nickel, mercury and
Zinc etc. is in the row impressively, therefore the Zn contents reduced in tobacco and flue gas help to lift the security of smoking property of cigarette.
Papermaking-method reconstituted tobaccos are a kind of restructuring tobaccos, it has, and burn rate is fast, releasing content of coke tar is low, Filling power it is high with
And degrading resistance property it is good the features such as.The important step that extracting tobacco concentrate is produced as papermaking-method reconstituted tobaccos, its quality is
The key factor of Chip Quality is influenceed, but the current side for still lacking the heavy metal element effectively reduced in reconstituted tobacco extract
Method.At present, zinc ion in water removal is gone to have been reported in industry.Chinese patent CN104230112A discloses zinc ion in waste water
Minimizing technology, complexing and biochemical enrichment occur using chlorella and zinc enables the metal ion in waste water to be enriched with,
The zinc ion that chlorella is gone in water removal is separated, clearance is 50%-80%.Chinese patent CN 103043824A disclose one kind
The method of zinc in removal sewage, sedimentation flocculation is carried out by addition bodied ferric sulfate in zinc-containing water, and flocculate precipitate is discharged,
Except zinc effect is higher.But the removal for realizing Zn ions in tobacco extraction liquid using electrodialytic technique is also rarely reported.Electrodialysis
Technology is the selective penetrated property energy to anions and canons using amberplex, under DC electric field effect, sends out anions and canons
Raw directional migration, so as to reach the purpose of the separation, purification and concentration of electrolyte solution.Now have been widely used for chemical industry, doctor
The industries such as medicine, papermaking.Chinese patent CN103182248A is disclosed using electrodialysis methods removal shellfish extract solution Zhong Cadmium, lead etc.
Heavy metal, reducing effect is more notable.Patent CN103082394A, CN103330277A and US4302308A, US4253929
Disclose chlorion, the nitrate ion removed using electrodialysis methods in tobacco extract or reconstituted tobacco extract, but this
A little patents do not investigate the removal effect to Zn.Chinese patent CN102406230A is disclosed and exchanged using electrodialysis coupled ion
As, Pb and Cd in the method removal tobacco extraction liquid of column chromatography, removal efficiency reaches as high as 90%, but the patent is not investigated
Process the influence to nicotine and cigarette sensory quality.Common electrodialytic technique is realizing chlorion, nitrate anion plasma chemical combination
Thing relative to nonionic compound (fructose, glucose, pectin etc.) selective removal while, also typically result in tobacco from
A large amount of losses of subtype active principle (nicotine and organic acid), this will cause smoking property of cigarette quality decline.Xiang Haiying etc. is used
IONSEPTMWhile amberplex removes removing chloride, the nicotine (chlorion in stem extracting solution that also reduces by more than 50% is found
Electroosmose process is removed, tobacco science and technology, 2015,1:72-75).Therefore, reconstituted tobacco extract intermediate ion removal efficiency is being improved
Meanwhile, the active ingredient (nicotine and organic acid) for how being effectively retained tobacco is that electrodialysis process tobacco extraction liquid is urgently to be resolved hurrily
The key problem in technology that key issue is also electrodialytic technique to be applied in papermaking-method reconstituted tobaccos production.
The content of the invention
The one kind developed the present invention be directed to a large amount of losing issues of nicotine existing for above-mentioned existing electrodialytic technique is raw
The Zn selective regulation methods that production. art is simple, controllability is strong, can be widely applied in papermaking-method reconstituted tobaccos extract, make Zn
Content is selectively reduced, and is prevented effectively from the loss of nicotine and organic acid, while Zn contents are reduced, significantly improves paper process
Reconstituted tobacco sucking quality.
The use that the present invention selectively passes through film by univalent anion efficiently reduces Zn contents in tobacco extraction liquid, and has
Effect avoids the loss of nicotine and organic acid, realizes the selectivity of Zn contents reduction.
The present invention solves technical problem, adopts the following technical scheme that：
The selectivity reduction method of Zn contents in papermaking-method reconstituted tobaccos extract of the present invention, it is characterized in that：
A, will according to prepared by papermaking-method reconstituted tobaccos production technology tobacco extraction liquid introduce electrodialysis plant desalination
Room, and water or electrolyte are added in enriched chamber；The solid content of the tobacco extraction liquid is 7-10%.
The anion-exchange membrane of the electrodialysis plant selectively passes through film for univalent anion, and cation-exchange membrane is preferred
It is homogeneous phase cation exchange film.
The step of preparing tobacco extraction liquid according to papermaking-method reconstituted tobaccos production technology be：By papermaking-method reconstituted tobaccos raw material
(offal and/or offal) is added in agitator tank, adds the 4-10 times of water of weight, and stirring is extracted 1 hour, uses Double screw pulp extruder
Carry out separation of solid and liquid, the resulting tobacco aqueous solution shakes sieve coarse filtration by 80-120 purposes, then in 2500-3500rmb rotating speeds
Under the conditions of centrifugation, clear liquid be electrodialysis process needed for tobacco extraction liquid.
B, electrodialysis process removing Zn ions are carried out to tobacco extraction liquid under constant current conditions, that is, carry out at dezincification
Reason；The flow of electrodialysis process is 5-8L/min；Constant current density is 8-15mA/cm2。
C, in dezincification processing procedure by the change of diluting compartment internal conductance rate or the actual content of Zn come control process
Degree；Detect that nicotine content and organic acid total amount (including citric acid, oxalic acid and malic acid) are to investigate dezincification in diluting compartment simultaneously
The selectivity for the treatment of；
D, by the tobacco extraction liquid after dezincification according to papermaking-method reconstituted tobaccos production technology proceed treatment, for reproducing
The processing of tobacco leaf.
Under usual condition, in acidity, its pH scope is about 4.5-6.5 to tobacco extract, and nicotine therein is main with monovalence
The form of salt is present.In theory, nicotine can be found by monovalence selective ion exchange membrane, but experiment：Electrodialysis
Nicotine selectively passes through film not by univalent anion in journey, and this is probably mainly the ionic hydration half due to nicotine anion
Footpath is big, and univalent anion selectively has physical preferences through film to it.So as to the present invention can be selected by univalent anion
Property through film use, efficiently reduce tobacco extraction liquid in Zn contents while, effectively prevent the stream of nicotine and organic acid
Lose, realize the selectivity reduction of Zn contents.
Compared with the prior art, the present invention has the beneficial effect that：
1st, the present invention can not only effectively reduce Zn contents, while the loss of nicotine and the main organic acid of tobacco can be avoided, carry
The quality of papermaking-method reconstituted tobaccos extract is risen, the sucking quality of reconstituted tobacco is farthest ensure that.
2nd, simple production process of the present invention, controllability be strong, steady quality, can be widely applied to papermaking-method reconstituted tobaccos extraction
The selectivity reduction of Zn contents in liquid.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail
Embodiment 1：
Tobacco extraction liquid is prepared by raw material of tobacco leaf, the tobacco extraction liquid that 450mL solid contents are 8% is loaded and is installed
(wherein cavity block is Selemion 10 pairs of amberplexesTMUnivalent anion selectively passes through film, and anode membrane is SelemionTMOne
Valency cation permselective film, effective area be 1 square metre) electrodialysis plant diluting compartment in, and in enriched chamber plus
Enter the running water of 500mL；In 10mA/cm2Constant current density under the conditions of, under the flow of 6L/min carry out electrodialysis process
40min。
After tested, the electrical conductivity of tobacco extraction liquid is reduced to by initial 14.61mS/cm in diluting compartment after treatment
7.92mS/cm。
10 pairs of conventional ion exchange membranes are provided with, (anion-exchange membrane is homogeneous-phase anion exchange film CJA-2, cation
Exchange membrane be homogeneous phase cation exchange film CJC-2, Hefei Ke Jia macromolecular materials Science and Technology Ltd. manufacture) electrodialysis plant
In carry out the electrodialysis process contrast test of identical tobacco extraction liquid, test parameters in addition to amberplex used difference, other
Parameter all same.
After being processed through two kinds of membrane stacks, the chemical analysis results of tobacco extraction liquid are shown in Table 1 in diluting compartment, as a result show：With it is general
Logical homogeneous ion-exchange membrane is compared, and the selective film that passes through of monovalent ion, can be significantly under the premise of realizing that Zn contents are diminishbb
Put forward selectivity of the high Zn content relative to nicotine, it is to avoid a large amount of losses of nicotine, while organic acid (mainly including citric acid,
Oxalic acid and malic acid) also obtain preferable reservation.
The evaluation result of papermaking-method reconstituted tobaccos prepared by the tobacco extraction liquid after by being processed using two kinds of electrodialysis membrane stacks
Show：Compared with being compareed using the non-selective removal of common homogeneous ion-exchange membrane, selectively selected through film through monovalent ion
Papermaking-method reconstituted tobaccos after the removal of selecting property suck strength and burn rate is all obviously improved, and organoleptic quality is integrally changed
It is kind.
Table 1
Embodiment 2：
Tobacco extraction liquid is prepared by raw material of offal, the tobacco extraction liquid that 500mL solid contents are 8% is loaded and is installed
(wherein cavity block is Selemion 10 pairs of amberplexesTMUnivalent anion selectively passes through film；Cation-exchange membrane is CJC-
2 homogeneous phase cation exchange films, Hefei Ke Jia macromolecular materials Science and Technology Ltd. manufacture) electric dialyzator diluting compartment in；Concentration
The sodium sulphate of 1.0mol/L of 500mL is added in room as initial electrolyte；In 12mA/cm2Constant current density under the conditions of
Carry out electrodialysis process 58min.After tested, after treatment in diluting compartment the electrical conductivity of tobacco extraction liquid by initial 16.7mS/cm
It is reduced to 6.9mS/cm.
10 pairs of conventional ion exchange membranes are provided with, (anion-exchange membrane is homogeneous-phase anion exchange film CJA-2, cation
Exchange membrane be homogeneous phase cation exchange film CJC-2, Hefei Ke Jia macromolecular materials Science and Technology Ltd. manufacture) electric dialyzator in
The electrodialysis process contrast test of identical tobacco extraction liquid is carried out, outside test parameters deionization exchange membrane, other parameters all same.
After being processed through two kinds of membrane stacks, the chemical analysis results of tobacco extraction liquid are shown in Table 2 in diluting compartment, as a result show：With it is general
Logical homogeneous-phase anion exchange film is compared, univalent anion selectively through film on the premise of realizing that Zn contents are substantially reduced,
Selectivity of the Zn contents relative to nicotine can be greatly improved, it is to avoid a large amount of losses of nicotine, at the same organic acid also obtained compared with
Good reservation.
The evaluation result of papermaking-method reconstituted tobaccos prepared by the tobacco extraction liquid after by being processed using two kinds of electrodialysis membrane stacks
Show：Compared with the non-selective removal control of the Zn ions using common homogeneous-phase anion exchange film, selected through univalent anion
Property is obviously improved through the strength of sucking of the papermaking-method reconstituted tobaccos after film selective removal, and the sense organ such as pleasant impression and excitant refers to
Mark is improved.
Comparative example 1 and embodiment 2 are also known, are selected from univalent anion in the anion-exchange membrane of electrodialysis plant
Through in the case of film, cation-exchange membrane is selectively passed through selecting property from homogeneous phase cation exchange film ratio from monovalent cation
The effect of film is better, and film is selectively passed through compared with monovalent cation, and the use of homogeneous phase cation exchange film can improve the removing of Zn
Rate and its selectivity.
Table 2
Claims (2)
1. the selectivity of Zn contents reduces method in a kind of papermaking-method reconstituted tobaccos extract, it is characterized in that：
A, will according to prepared by papermaking-method reconstituted tobaccos production technology tobacco extraction liquid introduce electrodialysis plant diluting compartment, and
Electrolyte is added in enriched chamber；The anion-exchange membrane of the electrodialysis plant is SelemionTMUnivalent anion selectivity
Through film, cation-exchange membrane is CJC-2 homogeneous phase cation exchange films；
B, in 8-15mA/cm2Constant current density under the conditions of tobacco extraction liquid is carried out electrodialysis process removing Zn ions, i.e.,
Carry out dezincification treatment；The flow of electrodialysis process is 5-8L/min；
C, in dezincification processing procedure dezincification degree is controlled by the change of diluting compartment internal conductance rate or the actual content of Zn；
Detect that nicotine content and organic acid total amount are to investigate the selectivity that dezincification is processed in diluting compartment simultaneously；
D, by the tobacco extraction liquid after dezincification according to papermaking-method reconstituted tobaccos production technology proceed treatment, for reconstituted tobacco
Processing.
2. the selectivity of Zn contents reduces method, its feature in papermaking-method reconstituted tobaccos extract according to claim 1
It is：The solid content of the tobacco extraction liquid is 7-10%.
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| CN106474926A (en) * | 2016-12-26 | 2017-03-08 | 合肥科佳高分子材料科技有限公司 | A kind of method that sugared alkali ratio in Nicotiana tabacum L. extraction or extract is regulated and controled by electrodialytic technique |
| CN108991595B (en) * | 2018-09-07 | 2021-08-03 | 云南中烟工业有限责任公司 | Filter tip capable of increasing flue gas baking aroma and reducing heavy metal content and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4253929A (en) * | 1980-03-05 | 1981-03-03 | Philip Morris Incorporated | Method for denitration of tobacco employing electrodialysis |
| US4302308A (en) * | 1980-03-05 | 1981-11-24 | Philip Morris, Inc. | Method for electrolytic denitration of tobacco |
| CN102406230B (en) * | 2011-07-05 | 2013-05-08 | 中国海诚工程科技股份有限公司 | Method for removing heavy metal ions from tobacco extract |
| CN103082394A (en) * | 2013-01-25 | 2013-05-08 | 安徽中烟工业有限责任公司 | Regulation and control method for paper-making method reproducing tobacco leaf extract liquor negative ion components |
| CN103330277A (en) * | 2013-07-02 | 2013-10-02 | 云南烟草科学研究院 | Method of controlling contents of nitrate and nitrite in tobacco reconstituted in papermaking method |
| CN103815536A (en) * | 2013-11-18 | 2014-05-28 | 云南烟草科学研究院 | Method for reducing ammonium content in paper-making reconstituted tobacco |
| CN104351943B (en) * | 2014-09-09 | 2016-02-10 | 安徽中烟工业有限责任公司 | A kind of method utilizing electroosmose process to reduce TSNA and nitrate content in reproduced tobacco concentrated liquid |
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