• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. A METHOD FOR PREPARING TOBACCO TO MANUFACTURE OF SMOKING PRODUCTS, including obtaining water extract of tobacco, separating the latter from the fibrous mass with subsequent removal of potassium nitrate and compound with fibrous mass, which in order to improve the quality of tobacco by reducing the content the smoke of nitrogen oxides formed during the smoking of products, the potassium salt is added to the denitrated tobacco extract, to a potassium content in an amount corresponding to its content in untreated tobacco. 2. The method according to claim 1, wherein the potassium salt is added after combining the denitrated extract with the fibrous mass. 3. Method according to Claims 1 and 2, of which is based on the fact that the potassium salt is selected from a series including potassium citrate, potassium acetate. 4. A method according to claim 1, characterized in that the potassium nitrate is removed from the aqueous extract of the tobacco (L kka by membrane electrodialysis of crystallization, treatment with an anion cationic resin, or a combination of these techniques. 5. The method according to claim 1, characterized in that an aqueous extract of tobacco is obtained by extracting tobacco in a denitrated aqueous solution of tobacco. 90
    公开号:SU1178311A3
    申请号:SU813347854
    申请日:1981-10-19
    公开日:1985-09-07
    发明作者:Демитриос Керитсис Газ
    申请人:Филип Моррис Инкорпорейтед (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the tobacco industry, in particular to methods for the preparation of tobacco and the production of smoking articles. The purpose of the invention is to improve the quality of tobacco by reducing the content of nitrogen oxides in smoke, which are formed during smoking. By using the proposed benefit, the removal of substances other than nitrates from tobacco is minimized, and as a result, the harmful effects on the properties of tobacco and its filling capacity and the quality of burning can be avoided. EXAMPLE 1 Tobacco is converted into pulp with a denitrated aqueous solution containing soluble tobacco substances and the extract containing soluble elements is separated and concentrated. Extract partially denitrated. A portion of the resulting extract is then further denitrated by electrodialysis using an apparatus with 20 pairs of cells. 9 x 10 membranes with 5.0 ft (0.465 m) effective membrane surface. Cells include Ionics 61CZL 386 permeable to cation., Paired with 103QZL 386 permeable to anion membrane. These anion-permeable membranes have a thickness of about 0.63 mm, contain about 36% by weight of water, and include interlinked copolymers of vinyl monomers, contain quaternary ammonium anion-exchange groups, and are a homogeneous film in the form of a sheet on a reinforcing synthetic base. consisting of a modacrylic polymer. The cation permeable membranes have a thickness of about 0.6 mm and contain about 30% by weight of water and include cross-linked sulfonated copolymers of vinyl compounds, which are also a homogeneous film in the form of a sheet on synthetic reinforcing bases. The gaskets are 0.04. The membranes are in front of Ionics 389 electrodes, which are separated from platinum-niobium electrodes, and stainless steel electrodes with gaskets with a thickness of 0.08. Salt solutions are 0.1% aqueous solutions of KI / Oz, and are 0.1 N electrolytes. ,., having a pH of 2 A. Electrodialysis is carried out at an application of 30 V. The temperature of soluble elements is not controlled during the process and is about 88-98 ° C, the pH at 22 ° C is about 4.75. Half of the obtained denitrated extract is again applied to a portion of a tobacco leaf obtained from extracted pulp and used to obtain exemplary cigarettes. The second sample is prepared by adding potassium acetate to the solid elements, subjected to electrodialysis, before secondary supply to the web. The control sample contains a web treated with a partially denitrated extract. The effect of denitriding processed tobacco on the gas phase in smoke is shown in Table 1. Example 2. 3 kg of tobacco leaf burley without a midrib is extracted with 26 liters of water at 80 C. Tobacco is immersed in a water bath, contacting is carried out for 1 minute. Extracted tobacco is dried, balanced, cut, and injected into cigarettes that have regular cellulose acetate filters adapted to them. Untreated burley tobacco is also cut and used for control cigarettes. The second batch of identical tobacco leaf berley without a midrib is extracted in the same way, then dried and balanced. The potassium content of the extracted tobacco is measured, and potassium citrate is added to the dried tobacco to a level approaching the original. Cigarettes containing 100% extracted and coated and untreated tobacco Burley, as well as 30% of each sample in a mixture with a typical mixture of tobacco, were smoked under controlled laboratory conditions. The compositions of the resulting material particles (ICP) and the gas phase will be analyzed to determine the yield rate. The content of nitrate-nitrogen in the treated and untreated tobacco is determined using an autoanalyzing system with a modification of a known method. Analytical data characterizing the quality of tobacco are given in table 2.
    3
    The data shows that improved reduction data is achieved for such components. gas phase smoke like NO.HCN at least CO, when potassium returns to the tobacco that has been processed to remove potassium nitrate, moreover, the return of potassium does not change the number of blowdowns.
    PRI me R 3.
    Stage A.
    Using a known process, a mixture of tobacco, containing 30 wt.% Of burley tobacco, is extracted with water. The aqueous tobacco extract is separated from the fiber of tobacco materials and concentrated in vacuo to a solids content of about 45%. The concentrated tobacco extract is then sent to a cooling crystallization apparatus, in which the temperature is maintained at 10-15 ° F (oT -15 to -9.44 s); The resulting crystalline potassium nitrate material is separated by centrifugation, and an aliquot of denitrated extract is again used for pre-extracted tobacco material, which is in the form of a leaf. This recycled tobacco leaf is named sheet A. Parts of sheet A are sprayed with a solution of potassium citrate and are called A to AZ. Cigarettes containing 100% sheets prepared in this manner are manufactured and automatically smoked. The components of the gas phase are measured by purging using conventional techniques.
    Stage B.
    An aliquot of the denitrated extract prepared according to the step was extensively denitrated using an ion membrane electrodialysis method, essentially as described in Example 1. This extract is then again added to the pre-extracted fibrous tobacco material to produce a recycled tobacco leaf. Parts of this sheet are coated with potassium citrate solution and are called B and DB, respectively. From the sheets thus obtained, cigarettes were made and smoked mechanically, as in stage A. Control cigarette, which was prepared in accordance with article 83114
    circuit A is also smoked for comparison purposes.
    Stage C.
    An aliquot of the extracted fibrous tobacco material, obtained in stage A, is made in the form of a tobacco leaf and is called sheet C. Soluble tobacco elements are not brought to the sheet for the second time. Parts of sheet C are coated with a solution of citrate potassium, dried and then placed in cigarettes named from C | to C. Cigarettes, including a control sheet, called C, smoked and gas phase analyzed so
    s the same way as in stage A.
    The smoke data are summarized in table 3.
    Etc. and meper -4. 30 hours of tobacco barley extracted 450 hours of water at
    90 ° C. The fibrous parts of the tobacco are separated from the water parts by centrifugation and dried in air at room temperature.
    The aqueous extract is treated with Fisher Scientific Rexyn 201 (OH) and Rexyn lOl (H) re-mixed anion-cation exchange resin to remove both potassium and nitrate ions. After that, the denitrated extract concentrates to a solids content of approximately 15%.
    The concentrated extract is divided into three equal parts by weight and is again applied to equal parts by weight of the tobacco fiber residue to obtain three sheets of processed tobacco as follows: Sheet A: extract plus residue;
    0 sheet B: extract plus residue plus potassium citrate in an amount sufficient to give 2% by weight of potassium return to the final sheet; Sheet C: the same as Sheet B,
    5 except that the return of potassium in the form of potassium citrate was 4 wt.%.
    Prepared by the named way
    0 crushed tobacco sheets are crushed, manufactured cigarettes are smoked mechanically. From a raw sample of a tobacco barley sheet without a central vein also
    5 made cigarettes and used for control. The gas phase is captured and analyzed. The results are summarized in table 4.
    Table 1
    0.354.3 3.62.3
    0.062.6 1.64.6
    0.053.6 0.92.1 Koltrolpiy tobacco bsrley 10020.43 3.4014.9f4 Extracted tobacco Cerley 100% 0.3 1.67 70 9, g 19 Extracted covered with potassium citrate, tobacco (100Z) 0.12 h; Exhaust gas 72 TS, 4 15 Mixture with control yerley tobacco 0.33 3.76 - G4.6 -15 See “extracting tobacco extracts with berry 0.23 2.93 30.3 15.16 16 Mixture with extracted potassium citrate 0.19 3.38 42.4 15.5, 15
    2.63 8
    2.80 10
    2.26 10
    table 2
    NS ", IG
    N0 mg /
    Reduction
    R.S.CoUO. Z
    Cigarette Cigarette Amount of blowing no cigarette 0.16 0.41 9, 20, .0.27 9 0.18 9 0.30 9 9. 3.3 0.2S D7, 84 0.22 9 26.7
    Tav mts 5
    权利要求:
    Claims (5)
    [1]
    1. METHOD FOR PREPARING TOBACCO FOR PRODUCTION OF SMOKING PRODUCTS, including obtaining water, tobacco extract, separating the latter from the pulp, followed by removal of potassium nitrate from it and combining it with pulp, characterized in that.
    In order to improve the quality of tobacco by reducing the content of nitrogen oxides in the smoke formed during smoking of products, potassium salt is added to the denitrated tobacco extract to the potassium content in it in an amount corresponding to its content in untreated tobacco.
    [2]
    2. The method according to claim 1, characterized in that the potassium salt is added after combining the denitrated extract with pulp.
    [3]
    3. The method according to claims 1 and 2, characterized in that the potassium salt is selected from the range including potassium citrate, potassium acetate.
    [4]
    4. The method according to claim 1, characterized in that the potassium nitrate is removed from the aqueous extract of tobacco by membrane crystallization electrodialysis, treatment with anionic cation resin, or a combination of these techniques.
    [5]
    5. The method of Pop. 1, characterized in that the aqueous tobacco extract is obtained by extraction of tobacco in a denitrated aqueous solution of tobacco.
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    同族专利:
    公开号 | 公开日
    EP0034922A1|1981-09-02|
    BR8106869A|1981-12-22|
    WO1981002379A1|1981-09-03|
    JPS57500182A|1982-02-04|
    CA1153543A|1983-09-13|
    ES499624A0|1982-07-01|
    US4589428A|1986-05-20|
    DK155908C|1989-10-23|
    DK155908B|1989-06-05|
    GR74120B|1984-06-06|
    EP0034922B1|1985-05-22|
    DK453681A|1981-10-13|
    AR228269A1|1983-02-15|
    ES8205542A1|1982-07-01|
    PH20375A|1986-12-08|
    DE3170572D1|1985-06-27|
    JPH0112470B2|1989-03-01|
    AU540521B2|1984-11-22|
    AU6751881A|1981-08-27|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/123,247|US4589428A|1980-02-21|1980-02-21|Tobacco treatment|
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