• 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:
    In the production of silicon or silicon-alloy bodies in which a shaped pre-form, blank or like member containing a silicon carrier and carbon is subjected to an electric furnace, the fine-grain silicon carrier intimately mixed with preferably a stoichiometric amount of caking coal and the mixture is molded to form the body which is subjected to hot briquetting at a temperature of 350 DEG to 550 DEG C. as is used for the hot briquetting of coal.
    公开号:SU1091849A3
    申请号:SU813259800
    申请日:1981-03-13
    公开日:1984-05-07
    发明作者:Ласк Герт-Вильгельм
    申请人:Интернешл Минеральс Энд Кемикал Люксембург С.А. (Фирма)；
    IPC主号:
    专利说明:

    11 The invention relates to silicon and carbon-containing molded raw materials, in particular, to a method for producing silicon and carbon-containing molded materials, to conduct silicon in an electric furnace. A known method for producing silicon and carbon-containing formulated raw materials, in which a fine-grained carrier of silicon is mixed with fine-grained coal and the resulting mixture is briquetted under pressure Cil The disadvantage of the known method is a low yield of silicon, as the molded products quickly reduce the silicon. and carbon-containing molded raw materials by mixing the silicon carrier with sintering angles by briquetting the mixture at temperatures up to 300 ° C. C2. The disadvantage of this method is that the yield of silicon does not exceed 80%. In addition, the energy consumption during the smelting of silicon is relatively large. The purpose of the invention is to increase the yield of silicon and reduce energy consumption in the process of smelting silicon. This goal is achieved by the fact that according to the method of obtaining silicon and carbon-containing molded raw materials for silicon production in an electric furnace, including mixing ne with sintering coal and briquetting the mixture at elevated temperatures, briquetting is carried out at 350-650 wt.%: Sand 60-70 Sintering coal 30-40 Source Components additionally contain petroleum coke with the following ratio, wt%; Sand58-70 Sintering coal 20-30 Oil coke 10–20 G Briquetting lead to a product weighing 10–100 g. The resulting briquettes usually contain carbon and silicon dioxide at a ratio of (30–60) - (40–70). Example K 63.5% by weight of sand containing 90% silica was intensively mixed with 36.5% by weight,% sintering coal containing 70% of the conditioner, and the processed mixture was converted into briquettes weighing 20 g with (for comparison gfy). Example 2. 66% by weight of sand containing 90% of silicon dioxide, inTCHCiiBHO are mixed with 12% by weight of oil: coke, containing 90% of carbon, and 22 Bes.% Of sintering coal, containing 70% of carbon, and sex The mixture is processed into briquettes weighing 20 g with (for comparison, with). Example 3. Example 1 is repeated. Of course, that the initial components are in a weight ratio of 60:40 (for comparison, in a weight ratio of 50:50). : 1 p and m 4. Example 1 is repeated, with the difference that the initial components are taken in a weight ratio of / 0: 30, and the applied sand contains 80% silicon dioxide, and the used sintering carbon — 80% carbon (for comparison - sand and sintering coal are taken in a weight ratio of 75:25, the applied sand contains 75% of silica dioxide (and sintering coal contains 90% of carbon), Example 5. Repeat example. with the difference that the briquetting is carried out at, Example 6. Example 1 is repeated with the difference that the briquetting is carried out at (for comparison, at). Г1 р and мер 7. Example 1 is repeated, with the difference that briquetterosis is carried out into a product weighing a) 10 g and b) 100 g "K emep 8. Repeat example 2 with the difference that sand, sintering zgol and petroleum coke are taken in a 70:20:10 weight ratio. - In this, the applied sand contains 85% cinder dioxide (for comparison, necdK, sintering (iced coal and petroleum coke are taken in a weight ratio of 75: 17: 8, and the sand contains 75% carbon dioxide and sintering carbon n coke contains 90 and 95% carbon, respectively. Example 9. Example 2 is repeated with the difference that sand, sintering coal and petroleum coke are taken in a weight ratio of 60:30:10. Example 10, Example 2 is repeated with the difference what is sand, spec310
    Penned coal and petroleum coke are taken in a weight ratio of 60:20:20.
    Example 11. Example 2 is repeated with the difference that sand, sintering coal and petroleum coke are taken in a weight ratio of 58:30:12 (for comparison, at a weight ratio of 55: 40: 5).
    Example 12. In an electric furnace with a capacity of 40 kW, having a diameter of 254 mm and a height of 254 mm and equipped with two vertical graphite electrodes with a diameter of 38.1 mm, briquettes are produced, obtained in examples 1-11. In addition, sand is fed into the interbriquette space. The mixture is heated in two stages, with the mixture being heated at lyOO C in the first stage and 1850s in the second stage. The process takes 24 hours.
    The results of the process are shown in the table.
    Table continuation
    Comparison of the data in the table indicates that a high yield of silicon (94%) with energy consumption in the order of 11,000 kWh / t of silicon is achieved only during brie
    权利要求:
    Claims (3)
    [1]
    1. METHOD FOR PRODUCING SILICON-. AND CARBON-CONTAINING FORMED RAW MATERIALS for the production of silicon in an electric furnace, including mixing sand with sintering coal and briquetting the mixture at elevated temperatures, characterized in that, in order to increase the yield of silicon and reduce energy consumption during silicon smelting, briquetting is carried out at 350-650 ° C, and the mixing of the starting components in the ratio, wt.%:
    Sand
    Sintering coal
    [2]
    2. The method of pop. 1, with the fact that ponents additionally coke in the following ratio, May.%:
    Sand
    Sintering coal
    Petroleum coke
    [3]
    3. The method according to PP 1
    60-70 30-40 about t and h and the initial komsomo contain naves 2 that
    58-70
    20-30
    10-20 tons of briquettes; 10 hours lead to a product weighing
    100 g
    SU ", 1091849>
    1 109
    类似技术:
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    同族专利:
    公开号 | 公开日
    DD156903A5|1982-09-29|
    NL183025B|1988-02-01|
    PL230138A1|1981-12-23|
    PT72643A|1981-04-01|
    IE810554L|1981-09-14|
    DK153849C|1989-01-30|
    LU83218A1|1981-06-24|
    AT375681B|1984-08-27|
    IT8120346D0|1981-03-13|
    SE451711B|1987-10-26|
    AU6815981A|1981-09-17|
    NL8101195A|1981-10-01|
    DK114481A|1981-10-23|
    YU62781A|1983-09-30|
    IT1136817B|1986-09-03|
    ZA811436B|1982-03-31|
    DK153849B|1988-09-12|
    AU538052B2|1984-07-26|
    GB2088840B|1983-09-07|
    IE50934B1|1986-08-20|
    FI810765L|1981-09-15|
    AR225949A1|1982-05-14|
    FR2478127B1|1983-12-16|
    IS1120B6|1983-07-08|
    JPS56136954A|1981-10-26|
    IN153095B|1984-06-02|
    ATA118181A|1984-01-15|
    BR8101513A|1981-09-15|
    JPH026815B2|1990-02-14|
    NL183025C|1988-07-01|
    MX155012A|1988-01-19|
    ZW5181A1|1981-07-22|
    FI70257B|1986-02-28|
    IS2623A7|1981-09-15|
    PT72643B|1982-03-17|
    DE3009808C2|1982-02-18|
    ES8201216A1|1981-12-16|
    PL129470B1|1984-05-31|
    DE3009808A1|1981-09-24|
    NO810850L|1981-09-15|
    ES500301A0|1981-12-16|
    GB2088840A|1982-06-16|
    YU41013B|1986-10-31|
    NO152515B|1985-07-01|
    BE887930A|1981-07-01|
    CA1171227A|1984-07-24|
    SE8101569L|1981-09-15|
    PH19532A|1986-05-20|
    FR2478127A1|1981-09-18|
    US4389493A|1983-06-21|
    FI70257C|1986-09-15|
    MY8700216A|1987-12-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2623243A|1946-01-09|1952-12-30|Azote & Prod Chim|Method of agglomeration|
    US2561266A|1950-05-01|1951-07-17|Harry W Dietert Company|Method and apparatus for forming test specimens of molding sand and the like|
    US3231649A|1964-04-17|1966-01-25|Pullman Inc|Compaction method|
    US3704114A|1971-03-17|1972-11-28|Union Carbide Corp|Process and furnace charge for use in the production of ferrosilicon alloys|
    DE2335669A1|1973-07-13|1975-02-06|Metallgesellschaft Ag|PROCESS FOR THE MANUFACTURING OF ORECAKE HOT BRIQUETTES FOR SELF-DIVIDING|DE3411731C2|1983-11-26|1987-07-09|International Minerals & Chemical Corp., Northbrook, Ill., Us|
    LU85116A1|1983-12-06|1985-09-12|Laborlux Sa|METHOD FOR HOT BRIQUETTING FINE GRAIN MATERIALS AND FOR PROCESSING THE HOT BRIQUETTES|
    DE3439550A1|1984-10-29|1986-04-30|Siemens Ag|Process for producing silicon for solar cells|
    DE3541125C2|1985-05-21|1988-09-22|International Minerals & Chemical Corp., Northbrook, Ill., Us|
    US4659374A|1985-06-14|1987-04-21|Dow Corning Corporation|Mixed binder systems for agglomerates|
    DE3724541C2|1987-07-24|1990-01-11|Applied Industrial Materials Corp. Aimcor, Deerfield, Ill., Us|
    DE3923446C1|1989-07-15|1990-07-26|Applied Industrial Materials Corp. Aimcor, Deerfield, Ill., Us|
    FR2668161A1|1990-10-23|1992-04-24|Nufarm Energy Pty Ltd|BRIQUETTES, PREPARATION METHOD AND USE IN SILICON FUSION PROCESSES.|
    EP0527353B1|1991-08-08|1995-06-07|Applied Industrial Materials Corporation Aimcor|Process for the production of silicon in electric low-shaft furnace and green bricks to carry out the process|
    NO20141486A1|2014-12-09|2016-06-10|Elkem As|Energy efficient integrated process for the production of metals or alloys|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3009808A|DE3009808C2|1980-03-14|1980-03-14|Process for the production of raw material blanks containing silicon and carbon and the use of the raw material blanks|
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