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1.发明授权
公开(公告)号：US4364974A
公开(公告)日：1982-12-21
申请号：US275159
申请日：1981-06-19
申请人： Gert-Wilhelm Lask
发明人： Gert-Wilhelm Lask
CPC分类号： C01B31/36 , C01B33/025
摘要： A method of preparing an intermediate composition for the production of silicon or silicon carbide, wherein silicon dioxide particles (quartz sand) are coated with carbonaceous material in a fluidized bed from which the coated particles are extracted as they fall to the bottom of the fluidized bed by virtue of an increase in mass by the coating process. The carbon in the coating should be stoichiometrically equivalent to that required for the ultimate reaction of the silicon dioxide to form either elemental silicon or silicon carbide.
摘要翻译： 制备用于生产硅或碳化硅的中间组合物的方法，其中在流化床中用碳质材料涂覆二氧化硅颗粒（石英砂），当流化床中的涂层颗粒落到流化床的底部时， 由于涂覆过程的质量增加。 涂层中的碳应该化学计量地等于二氧化硅最终反应形成元素硅或碳化硅所需的碳。
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2.发明授权
公开(公告)号：US5078927A
公开(公告)日：1992-01-07
申请号：US551516
申请日：1990-07-11
申请人： Gert-Wilhelm Lask
发明人： Gert-Wilhelm Lask
CPC分类号： C01B33/025 , C22B1/244
摘要： Raw material bodies such as briquettes, for use in the production of silicon or silicon alloys, are formed by mixing a pitch and caking coal at a temperature above 100.degree. C. and up to 200.degree. C. to form a pitch/coal alloy. This hot binder composition is mixed with sand and a noncaking carbon carrier at a temperature in this range to form the starting composition from which preforms are pressed. The preforms are subjected to a heat treatment which involves raising the temperature to above 450.degree. C., preferably in a sand filled rotary furnace to harden the preforms into the bodies.
摘要翻译： 通过在高于100℃和高达200℃的温度下混合沥青和结块煤形成用于生产硅或硅合金的原料物质如煤饼，以形成沥青/煤合金。 该热粘合剂组合物在该范围内的温度下与砂和不含碳的载体混合，形成预成型体被压制的起始组合物。 对预成型件进行热处理，其包括将温度升高至450℃以上，优选在填砂旋转炉中，以将预成型件硬化成体。
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公开(公告)号：US4975226A
公开(公告)日：1990-12-04
申请号：US220616
申请日：1988-07-18
申请人： Gert-Wilhelm Lask
发明人： Gert-Wilhelm Lask
CPC分类号： C01B31/36 , C01B33/025 , C22B1/244 , C01P2004/10
摘要： A process and apparatus for the preparation of green briquettes for the production of silicon or silicon carbide or ferrosilicon in electric pit furnaces, quartz sand, a carbon carrier and a bituminous binder being mixed together, the mixture being shaped into blanks from which the green briquettes are formed by heat treatment. The process is performed with the use of blanks which are free from melted bituminous caking coal and whose specific weight is made greater than the bulk density of quartz sand by adjustment of the proportions of the mixture and by compacting. The blanks are introduced for the heat treatment into a heated rotating drum furnace whose lower part is filled with quartz sand to an extent such that the heat treatment proceeds in a dip bed of quartz sand.
摘要翻译： 用于制备用于在电炉，石英砂，碳载体和沥青粘合剂中混合的硅或碳化硅或硅铁的生坯的方法和装置，所述混合物被成形为坯料，绿色块 通过热处理形成。 该方法通过使用不含熔融的沥青结块煤的坯料进行，并且通过调节混合物的比例和通过压实使其比重大于石英砂的堆积密度。 将坯料引入热处理到加热的旋转鼓炉中，其下部填充有石英砂，使得热处理在石英砂的浸渍床中进行。
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公开(公告)号：US4366137A
公开(公告)日：1982-12-28
申请号：US281352
申请日：1981-07-08
申请人： Gert-Wilhelm Lask
发明人： Gert-Wilhelm Lask
IPC分类号： C01B33/02 , C01B33/025
CPC分类号： C01B33/025
摘要： A process for producing silicon in which a reaction mixture consisting, on the one hand, of hot-pressed briquettes of silicon dioxide (quartz) and carbon and, on the other hand, of granular quartz are introduced into an electric furnace and reacted so that silicon carbide is produced from the agglomerates and the silicon carbide then reacts with the quartz which fuses from the granular quartz to produce elemental silicon.
摘要翻译： 一种生产硅的方法，其中将一方面由二氧化硅（石英）和碳的热压团块以及另一方面由粒状石英组成的反应混合物引入电炉中并使其反应，使得 碳化硅由附聚体产生，然后碳化硅与从石英石熔化的石英反应产生元素硅。
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公开(公告)号：US5284641A
公开(公告)日：1994-02-08
申请号：US923183
申请日：1992-07-27
申请人： Gert-Wilhelm Lask
发明人： Gert-Wilhelm Lask
IPC分类号： C01B33/025 , C01B33/02
CPC分类号： C01B33/025
摘要： A carbide former is introduced into briquettes in the production of silicon in an electric-arc low-shaft furnace to improve the trapping of silicon oxide rising in the furnace and increase the silicon yield. The carbide former can be calcium, magnesium or aluminum, preferably in the form of the silicate and most advantageous is magnesium silicate.
摘要翻译： 在电弧低轴炉中生产硅中的碳化物被引入到团块中，以改善在炉中上升的氧化硅的捕获并提高硅产率。 碳化物形成剂可以是钙，镁或铝，优选为硅酸盐形式，最有利的是硅酸镁。
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公开(公告)号：US5264007A
公开(公告)日：1993-11-23
申请号：US551517
申请日：1990-07-11
申请人： Gert-Wilhelm Lask
发明人： Gert-Wilhelm Lask
IPC分类号： C10L5/16 , C10L20060101 , C10L5/04 , C10L5/14 , C10L5/22 , C10L5/28 , F27B20060101 , C10L5/40 , C10L5/06
摘要： Fuel briquettes are made by blending a caking coal with pitch at a temperature above 100.degree. C. but below 200.degree. C. to form a pitch/coal alloy binder which is then hot-blended with any caking coke, especially petroleum coke and optionally finely-divided limestone. The pressed briquettes are then subjected to hardening heat treatment and are found to be resistent to mechanical deterioration on long-term storage.
摘要翻译： 燃料团块通过在高于100℃但低于200℃的温度下混合结块煤和沥青来制备沥青/煤合金粘合剂，然后与任何结块焦炭，特别是石油焦和任选地精细地混合 分开的石灰石 然后对压制的团块进行硬化热处理，发现它们长期储存时耐机械性变差。
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7.发明授权
公开(公告)号：US4820341A
公开(公告)日：1989-04-11
申请号：US865164
申请日：1986-05-20
申请人： Gert-Wilhelm Lask , Robert Nooden
发明人： Gert-Wilhelm Lask , Robert Nooden
IPC分类号： C01B33/02 , C01B20060101 , C01B31/30 , C01B33/025 , C01B33/06 , C04B20060101 , C22C20060101 , C22C33/00 , C22C38/02
CPC分类号： C01B33/025 , C22C33/003
摘要： A process for the production of silicon in a low-shaft electric furnace, in which raw-material blanks are first formed which contain fine-grain silicon dioxide, e.g. in the form of sand, and carbon in excess in respect of the reduction to silicon carbide and the raw-material blanks are introduced into the low-shaft furnance as a charge in mixture with silicon dioxide in lump form. The silicon dioxide in the raw-material moldings is reduced to silicon carbide in an upper part of the low-shaft electric furnace at a temperature of below 1600.degree. C. and coke structure agglomerates are formed from the excess carbon of the raw-material moldings. In a lower part of the low-shaft electric furnace, the silicon dioxide in lump form, is reduced to silicon with silicon carbide and carbon from the coke structure agglomerates at a temperature of above 1600.degree. C., preferably from 1800.degree. to 200.degree. C. The raw-material moldings are formed with bituminous binder containing a fine-particle silica powder. The silicon carbon reduction results in coke structure agglomerates having a very large internal carbon area in accordance with the internal area and percentage proportion of silica powder in the raw-material moldings. The silicon dioxide and gaseous silicon monoxide are reduced with the coke structure agglomerates having the increased internal area.
摘要翻译： 一种在低轴电炉中生产硅的方法，其中首先形成含有细粒二氧化硅的原料坯料，例如， 以砂的形式，并且关于还原为碳化硅的碳过量，并且原料坯料作为与二氧化硅块状形式的混合物的电荷引入低轴炉中。 原料模制品中的二氧化硅在低轴电炉的上部在低于1600℃的温度下还原成碳化硅，焦炭结构聚集体由原料模制品的多余碳形成 。 在低轴电炉的下部，块状的二氧化硅由碳化硅还原为硅，焦炭结构中的碳在高于1600℃，优选1800〜200℃的温度下还原。 原料模制品由含有细颗粒二氧化硅粉末的沥青粘合剂形成。 根据原料模制品中的二氧化硅粉末的内部面积和百分比，硅碳还原导致具有非常大的内部碳面积的焦炭结构聚集体。 二氧化硅和气态一氧化硅随焦炭结构团聚物的内部面积增加而减少。
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8.发明授权Process for the production of silicon-containing and carbon-containing raw material moldings, and the use of such moldings 失效用于生产含硅和含碳原料模制品的方法，以及这种模塑品的使用
公开(公告)号：US4389493A
公开(公告)日：1983-06-21
申请号：US252063
申请日：1981-04-08
申请人： Gert-Wilhelm Lask
发明人： Gert-Wilhelm Lask
CPC分类号： C22C33/003 , C01B33/025 , C22B1/245
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.degree. to 550.degree. C. as is used for the hot briquetting of coal.
摘要翻译： 在其中将含有硅载体和碳的成形预制件，坯料或类似构件经受电炉的硅或硅合金体的生产中，细晶硅载体与优选化学计量的结块紧密混合 煤和混合物被模制以形成在350℃至550℃的温度下进行热压块的主体，如用于煤的热压块。
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9.发明授权Apparatus for making green briquettes for forming Si, SiC or ferrosilicon 失效制造SI，SIC或FERROSILICON的绿色葡萄酒的设备
公开(公告)号：US5073107A
公开(公告)日：1991-12-17
申请号：US590479
申请日：1990-09-28
申请人： Gert-Wilhelm Lask
发明人： Gert-Wilhelm Lask
CPC分类号： C01B31/36 , C01B33/025 , C22B1/244 , C01P2004/10
摘要： A process and apparatus for the preparation of green briquettes for the production of silicon or silicon carbide or ferrosilicon in electric pit furnaces, quartz sand, a carbon carrier and a bituminous binder being mixed together, the mixture being shaped into blanks from which the green briquettes are formed by heat treatment. The process is performed with the use of blanks which are free from melted bituminous caking coal and whose specific weight is made greater than the bulk density of quartz sand by adjustment of the proportions of the mixture and by compacting. The blanks are introduced for the heat treatment into a heated rotating drum furnace whose lower part is filled with quartz sand to an extent such that the heat treatment proceeds in a dip bed of quartz sand.
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