• 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:
    Delignification of lignocellulosic material, such as wood, straw or bagasse, by treatment with an alkaline pulping liquor containing a diketo hydroanthracene selected from the unsubstituted and lower alkyl substituted Diels Alder adducts of benzoquinone and naphthoquinone.
    公开号:SU890985A3
    申请号:SU772553800
    申请日:1977-12-14
    公开日:1981-12-15
    发明作者:Хатчинсон Холтон Гарри
    申请人:Канейдиан Индастриз Лимитед (Фирма)；
    IPC主号:
    专利说明:

    ki on the other hand, the addition of anthraquinone-2-monosulfonic acid to the varomous liquor does not provide a high yield of the target product and slightly increases the rate of division of the product. The purpose of the invention is to increase the yield of the target product and intensify the process. The goal is achieved by the fact that in a known method of delignification of lignocellulosic material, which includes processing it in a closed reactor with an alkaline cooking solution at elevated pressure and temperature in the presence of an additive, followed by separating the cooking solution from the treated lignocellulosic material with water or cooking liquor, inert for lignocellulosic material, diketoanthracene selected from the group consisting of 1 ,, 9a-tetrahydro-9.10-diketoanthracene, 2-methyl as an additive is used -1 ,,, 9a-tetrahydro-9t10-diketo-transcene, 2,3-Dimethyl-1, L ,, 9a-tetrahydro-9.10-diketoanthracene, 1,3-Dimethyl-1 ,,, 9a-tetra of hydro-9 10- diketoanthracene, 1, i, ia, 5, 8,8a, 9a, 10a-octahydro-9LO-diketoanthracene or 2, 7-tetramethyl-1 ,,, 5,8,8a, 9a, 10a-octahydro-9e 0- diketoanthracene, in the amount of 0, by weight of the lignocellulosic material and the material is treated for 170270 minutes. Soda lye or sulphate lye is used as the alkaline cooking solution. Sulfate liquor contains polysulfide in the amount of 2% or by weight of lignocellulosic material. In terms of elemental sulfur. The proposed method for the delignification of lignocellulosic material is carried out as follows. The lignocellulosic material is cooked in high pressure stainless steel reactors. When the lignocellulosic material used is wood, it is first turned into chips. This stage is not required when the material has a fiber form. Weigh a certain amount of chips and soak in; 2) h in water before cooking. The soaked lines are placed inside the reactor and, if necessary, are pre-treated with steam for 10 minutes. Then, volatile liquor and water are added in quantities necessary to obtain a given alkali efficacy and a 4: 1 ratio of liquor to wood. Cooking is carried out at 1b5-170S 170-270 minutes After the end of cooking, the pressure in the reactor is removed and the pass, together with the spent solution, is fed into the mixer, diluted to 2% concentration and stirred for 5 minutes to simulate the mass blowing that occurs in industrial cooking vessels. The mass is then washed twice by diluting with water to a 21st concentration, filtered and pressed to a concentration of 25%. The yield, Kappa number and viscosity are determined. Example. The wood in the form of chips is loaded into the brewing reactor and soda liquor is fed containing various types of diketoanthracene. Spend cooking 7 O15raztsov chips of various breeds. The cooking conditions and pulp characteristics are given in table. 1 Example 2. Cooking of 17 black spruce samples in the form of chips is carried out using a soda cooking solution containing 1. 5,8,8a, 9a, 10a-octagidro-9, U-diketoanthracene as an additive. Cooking is carried out at a maximum temperature of 170 ° C. The rise time of the temperature is 90 I-WH and standing at the final temperature of 80 minutes. The cooking conditions and pulp characteristics are given in table. 2. Example 3 Brewing of 9 wood samples in the form of chips is carried out using a sulphate cooking solution containing various diketoanthracene as an additive. In cycles 1-5 and 7-9, the solution is heated to a maximum temperature of 90 minutes and maintained at this temperature for 80 minutes. The solution b of the cycle is heated to a maximum temperature of 120 minutes and maintained at this temperature for 150 minutes. In all cycles, sulphidity was 25%. The cooking conditions and pulp characteristics are given in table. 5. PRI me R C, Brewing 8 wood samples in the form of chips are made using a polysulfide cooking solution containing various diketoanthracene as an additive. In all cycles, the polysulfide solution is a common sulphate liquor with a sulphidity of 25%, while sulfur is added in an amount of 2% by weight to absolutely dry wood. in cycles 1-7, the effective alkalinity is} k% and the solution is heated to a maximum temperature of 90 minutes and kept at that temperature for 80 minutes. A solution of the 8th cycle, containing 15–5% of the effective alkali, is heated to a maximum temperature of 120 minutes and kept at this temperature for 150 minutes Cooking conditions and characteristics of the cellulose are given in Table. k, Example 5. (prototype). Cooking 5 samples of black spruce wood in the form of chips are conducted using a soda melting solution containing anthraquinone-2-sodium salt 5 sulfonic acid as an additive. The solution is heated to a maximum temperature of 170 ° C for 90 minutes and maintained at this temperature for 80 minutes. The cooking conditions and pulp characteristics are given in table. 5 When reviewing the data of Tables 1-5, it can be seen that the introduction of diketoanthracene into the cooking liquor provides a higher yield of cellulose. With any Kapp number in the entire range of experiments performed. In addition, with the same amount of additive, the delignification rate is higher when diketoanthracene is used as an additive. ..Table 1
    170 90 80 15.5 Spruce 1 ,,, 5,8,8a, 9a, 10cher-octagidro-9,10a-din ketoanthrocene. 90 80 15.5 80 15.5, 5, 5. 15.5 90 and O Mixes 165 120 150 poro wood
    0.25 51.7, 8 2-ethyl-L, Aa, 9a-tetrahydro-9, 100, 25 51.2 37.5-dikethoanthracene 2,3-dimethyl-1,4,4a, 9a-tetrahydro-9 , 1050, 7 35.6 -diketoanthracene 0.25 1, A, 4a, 9a-tetragidpo-9, 10-diketoanthracene 0.25 52.2 1.5 2.3,6,7-tetramethyl-1, A, a , 5,8,8a, 9a, -10a-octahydro-9, Yu-diketoanthracene0, 25 51.7 50, 1,3-dimethyl-1,4,, 9a-tetrahydro-9, Yu-diketoanthracene. 0.25 51.5 36.7 1.4, 5.8.8a, 9a, 10a-octahydro-9, 10-diketoanthracene 0.10 52.1 2., 0 13.0 El1, “,, 5 , 8,8a, 9a, tOa is black - octagidro-E 0-dike toantracene
    13.0
    890985
    8 Table 2
    Table 3 - 0.26
    51, 30.3, 5
    0.50, 5 3.2 k3.5
    -I2-ETHIL-1 ,, “a, 9a-tetrahydro-9, 10-diketoanthracene
    2,3-dimethyl-1 ,,, 9a-tetrahideo-9, 10-diketoanthracene
    1,3-dimethyl-1,4, "a, -tetrahydro-9 Yu - diketoanthracene
    1 ,,., 8,8a) 9a, 10aEl-octagidro-9,10-dicerna toantracene
    |
    |
    and
    , 3-dimethyl-1, ",, 9a
    and tetrahydro-9, 10-di "etho anthracene
    890985
    10 Continued table. 3
    0.25 51.5 29.7 35.8
    0.25 50.9 28.3 35.2
    0.25 50, i 35.1 38.0
    Table k
    29.2 A2, i
    52.7
    0.25
    eleven
    890985
    2-Ethyl-1 ,,, 9a-tetrahydro-9, 10-diketoanthracene
    1,3-Dimethyl-1, a, 9a-tetrahydro-9. 10-diketoanthracene
    权利要求:
    Claims (3)
    [1]
    1. The method of sharing a sniff of lactic cellulose material by treating it in an enclosed reactor with an alkaline cooking solution at elevated pressure and temperature in the presence of an additive, followed by separating the cooking solution from the lignoce pulp material with water or a cooking liquor liquor inert to the lignocellulosic material, characterized in that, in order to increase the yield of the target product and intensify the process, diketoanthracene selected from the group consisting of 1 is used as an additive, 4.4a, 9a-tetrahydro-9, 10-diketoanthracene, 2, -ethyl12 Continued table. C
    53,231.0, 7
    0.25
    51, 33.0 k3.5
    0.25
    Table 5
    -1, 4a, 9a-tetrahydro-9,10-diketoanthracene, 2,3-dimethyl-1 ,,, 9a-tetrahydro-9, 10-diketoanthracene, 1,3-dimethyl-1, a, 9a-tetrahydro -9,10-diketoanthracene, 1 ,,, 5,8,8а, 9a, 10a-octahydro-9 i0-diketoanthracene or 2,3,6,7-tetramethyl-1, 4,4a, 5.8,8a, 9a, 10a-octahydro-9, 10-diketoanthracene, in the amount of 0.001-1 by weight of lignocellulosic material and processing of the material are 170-270 minutes.
    [2]
    2. A method according to claim 1, characterized in that soda lye is used as the alkaline cooking solution.
    [3]
    3. The method according to claim 1, characterized in that sulphate lye is used as the alkaline cooking solution;
    13 890985ts
    t. The method according to paragraphs. 1 and 3i about tl and -sources of information,
    due to the fact that sulphate prints are taken into account
    lye contains polysulfide in the amount of KNepenin Yu.N. Cellulose technologies 2% by weight of lignocellulose ane. t.2, Goslesbumiedat, M., 19bЗ, s, 93b,
    material in terms of elegance ntar-5 2, Patent GDR N
    Nyu sulfuru.kp. 55 b 1/10, 1973 (prototype).
    类似技术:
    公开号 | 公开日 | 专利标题
    SU890985A3|1981-12-15|Methodof delignifying lignocellulose material
    ES425711A1|1976-12-01|Treatment of lignocellulosic material in an alkaline pulping liquor containing anthraquinone sulphonic acid followed by oxygen delignification
    US2030383A|1936-02-11|Method of treating pulp
    US4036680A|1977-07-19|Delignification of lignocellulosic material with a soda pulping liquor containing a Diels Alder adduct of benzoquinone or naphthoquinone in admixture with a nitro aromatic compound
    US2783146A|1957-02-26|Semi-hydrotropic chemical lignocellulose pulping process
    US2947657A|1960-08-02|Extraction of cellulose from vegetable matter
    US4134787A|1979-01-16|Delignification of lignocellulosic material with an alkaline liquor containing a cyclic amino compound
    SU1557228A1|1990-04-15|Method of producing pulp for chemical treatment
    SU861441A1|1981-09-07|Method of producing semicellulose
    SU1035110A1|1983-08-15|Process for producing cellulose
    US1721376A|1929-07-16|Method of manufacturing cellulose pulp
    US1867593A|1932-07-19|Process of chemical fiber liberation
    EP0010451A1|1980-04-30|Process for the delignification of lignocellulosic material and products thereof
    CA1216105A|1987-01-06|Pulping process
    US3168433A|1965-02-02|Sulfite cooking of wood
    GB771571A|1957-04-03|Improvements in or relating to the pulping of wood chips
    US1354731A|1920-10-05|Method of producing cellulose fiber
    SU1416576A1|1988-08-15|Method of producing semi-finished cellulose product
    US1868570A|1932-07-26|Process for treating woody materials to obtain fibers therefrom
    US4350566A|1982-09-21|Process for the delignification of lignocellulose materials with dinitroanthraquinones
    SU506672A1|1976-03-15|The method of pulping material
    US3177112A|1965-04-06|Method for pretreating wood for the production of cellulose
    SU912801A1|1982-03-15|Sulphate pulp production method
    Honda et al.1952|ON THE BARKS OF RIKUTIMEN, GOSSYPIUM HIRUSUTUM, L. PART III. PREVIOUS REPORT. ON THE SULPHATE PULPING OF RIKUTIMEN'S WOODY PARTS
    GB638496A|1950-06-07|Process for treating cellulosic raw material in order to obtain valuable products and by-products
    同族专利:
    公开号 | 公开日
    AU507893B2|1980-02-28|
    NO152342B|1985-06-03|
    BR7708251A|1978-09-05|
    FR2374466B1|1982-07-09|
    FR2374466A1|1978-07-13|
    JPS5374104A|1978-07-01|
    ES465039A1|1978-12-01|
    ZA776987B|1978-09-27|
    NO774266L|1978-06-15|
    CA1096112A|1981-02-24|
    NO152342C|1988-04-06|
    JPS5345404B2|1978-12-06|
    FI69128B|1985-08-30|
    SE7714131L|1978-06-15|
    AU3086877A|1979-05-31|
    FI69128C|1985-12-10|
    NZ185750A|1980-08-26|
    SE434857B|1984-08-20|
    US4036681A|1977-07-19|
    FI773773A|1978-06-15|
    DE2755768A1|1978-06-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2479619C2|2009-11-17|2013-04-20|Феликс Фердинандович Аухадеев|Pulsation apparatus for delignification of cellulose-containing plant material and method for operation thereof|US1890040A|1928-05-07|1932-12-06|Gen Aniline Works Inc|Production of anthraquinone and derivatives thereof|
    JPS551398B2|1974-10-09|1980-01-14|
    FI51833C|1975-03-18|1978-01-24|Ahlstroem Oy|
    JPS5313002B2|1975-03-26|1978-05-06|
    CA1073161A|1975-09-05|1980-03-11|Canadian Industries Limited|Delignification process|
    JPS5719239B2|1976-12-10|1982-04-21|US4181565A|1976-12-10|1980-01-01|Honshu Seishi Kabushiki Kaisha|Process for cooking lignocellulosic material in the presence of hydroxyanthracenes and derivatives thereof|
    JPS5719239B2|1976-12-10|1982-04-21|
    US4216054A|1977-09-26|1980-08-05|Weyerhaeuser Company|Low-consistency ozone delignification|
    JPS6059356B2|1977-12-05|1985-12-24|Kawasaki Kasei Chemicals|
    JPS62274B2|1978-02-10|1987-01-07|Oji Paper Co|
    FR2435457B1|1978-06-29|1981-01-30|Ugine Kuhlmann|
    US4405784A|1981-06-29|1983-09-20|Air Products And Chemicals, Inc.|Method of making triethylenediamine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/750,448|US4036681A|1976-12-14|1976-12-14|Delignification of lignocellulosic material with an alkaline pulping liquor containing a Diels Alder adduct of benzoquinone or naphthoquinone|
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