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183 条记录 (耗时 0.018 秒)

    Preparation process of transition metal boride and uses thereof
    3.
    发明授权
    Preparation process of transition metal boride and uses thereof 有权
    过渡金属硼化物的制备方法及其用途

    公开(公告)号：US08709368B2

    公开(公告)日：2014-04-29

    申请号：US13709025

    申请日：2012-12-09

    申请人： Shenzhen Sunxing Light Alloys Materials Co., Ltd

    发明人： Xuemin Chen ,  Jun Yang ,  Zhihong Li ,  Weiping Wu

    IPC分类号： C01B35/04 ,  C01B25/08 ,  C01F3/00 ,  C01B35/00 ,  C01F7/00 ,  B22F1/00 ,  B22F9/00

    CPC分类号： C01B35/04 ,  C25C3/12

    摘要： The invention provides a preparation process of transition metal boride, comprising the following steps: A) aluminum is put in a reactor, inert gas is fed into the reactor after evacuation, the reactor is heated up to 700 to 800° C. and then added with dry potassium fluoborate or sodium fluoborate, monomer boron and cryolite are generated by rapid stirring and reaction for 4 to 6 hours, and the molten liquid at the upper layer is sucked out and the monomer boron is obtained by means of separation; and B) the obtained monomer boron is added with transition metal for reaction at the temperature from 1800 to 2200° C. in order to generate corresponding transition metal boride.

    摘要翻译： 本发明提供了一种过渡金属硼化物的制备方法，包括以下步骤：A）将铝放入反应器中，抽真空后将惰性气体送入反应器中，将反应器加热至700至800℃，然后加入 用干燥的氟硼酸钾或氟硼酸钠，通过快速搅拌反应4至6小时产生单体硼和冰晶石，吸出上层熔融液，通过分离获得单体硼; 和B）所得单体硼在1800-2200℃的温度下加入反应过渡金属，以产生相应的过渡金属硼化物。

    Cyclic preparation method for producing titanium boride from intermediate feedstock potassium-based titanium-boron-fluorine salt mixture and producing potassium cryolite as byproduct
    4.
    发明授权
    Cyclic preparation method for producing titanium boride from intermediate feedstock potassium-based titanium-boron-fluorine salt mixture and producing potassium cryolite as byproduct 有权
    从中间体原料钾基钛硼氟盐混合物制备钛硼化物并生产冰晶石钾作为副产物的循环制备方法

    公开(公告)号：US08641996B2

    公开(公告)日：2014-02-04

    申请号：US13709023

    申请日：2012-12-09

    申请人： Shenzhen Sunxing Light Alloys Materials Co., Ltd

    发明人： Xuemin Chen ,  Yueming Yu ,  Qingdong Ye ,  Jun Yang ,  Zhi Zhou

    IPC分类号： C01B9/08 ,  C01F3/00 ,  C01F7/00 ,  C01B35/04 ,  B22F1/00 ,  B22F9/00 ,  C01B35/00 ,  C01B25/08

    CPC分类号： C01B35/04 ,  C01D5/00 ,  C01F7/34 ,  C01F7/428 ,  C01F7/54 ,  C01G23/00 ,  C25C3/18

    摘要： A cyclic preparation method including the following steps: a) boric acid or boric anhydride is added with hydrofluoric acid and then with potassium sulfate for reaction to generate potassium fluoborate; titanium-iron concentrate is added with hydrofluoric acid and then with potassium sulfate for reaction to generate potassium fluotitanate; B) the potassium fluoborate is mixed with the potassium fluotitanate, and the mixture reacts with aluminum to generate titanium boride and potassium cryolite; C) the potassium cryolite is sucked out and then fed into a rotary reaction kettle together with concentrated sulfuric acid, hydrogen fluoride gas as well as potassium sulfate and potassium aluminum sulfate are generated by reaction in the rotary reaction kettle, and the hydrogen fluoride gas is collected and then dissolved in water to obtain hydrofluoric acid aqueous solution; and D) the obtained hydrofluoric acid aqueous solution and potassium sulfate aqueous solution are recycled.

    摘要翻译： 一种循环制备方法，包括以下步骤：a）向氢氟酸中加入硼酸或硼酸酐，然后加入硫酸钾反应生成氟硼酸钾; 加入铁 - 铁精矿与氢氟酸，然后加硫酸钾反应生成氟钛酸钾; B）氟硼酸钾与氟钛酸钾混合，混合物与铝反应产生硼化钛和冰晶石; C）将钾冰晶石吸出，然后与浓硫酸一起进料到旋转反应釜中，通过在旋转反应釜中反应产生氟化氢气体以及硫酸钾和硫酸铝钾，氟化氢气体为 收集，然后溶于水，得到氢氟酸水溶液; 和D）得到的氢氟酸水溶液和硫酸钾水溶液被回收。

    Method for producing polycrystalline silicon
    6.
    发明授权
    Method for producing polycrystalline silicon 失效
    多晶硅的制造方法

    公开(公告)号：US08173094B2

    公开(公告)日：2012-05-08

    申请号：US12159066

    申请日：2006-12-26

    申请人： Toshiharu Yamabayashi ,  Masahiko Hata

    发明人： Toshiharu Yamabayashi ,  Masahiko Hata

    IPC分类号： C01B33/02 ,  C01F3/00 ,  C01F7/48 ,  C01G15/00

    CPC分类号： C01B33/033 ,  H01L31/182 ,  Y02E10/546 ,  Y02P70/521

    摘要： The present invention provides a method for producing polycrystalline silicon. The method for producing polycrystalline silicon comprises the steps of (A), (B), and (C), (A) reducing a chlorosilane represented by the formula (1) with a metal at a temperature T1 to obtain a silicon compound; SiHnCl4-n  (1)  wherein n is an integer of 0 to 3, (B) transferring the silicon compound to a zone having a temperature T2, wherein T1>T2; and (C) depositing polycrystalline silicon in the zone having a temperature T2, wherein the temperature T1 is not less than 1.29 times of a melting point (Kelvin unit) of the metal, and the temperature T2 is higher than a sublimation point or boiling point of the chloride of the metal.

    摘要翻译： 本发明提供一种多晶硅的制造方法。 制造多晶硅的方法包括以下步骤：（A），（B）和（C），（A）在温度T1下用金属还原由式（1）表示的氯代硅烷，得到硅化合物; SiHnCl4-n（1）其中n为0-3的整数，（B）将硅化合物转移到具有温度T2的区域，其中T1> T2; 和（C）在具有温度T2的区域中沉积多晶硅，其中温度T1不小于金属的熔点（开尔文单位）的1.29倍，并且温度T2高于升华点或沸点 的金属氯化物。

    Method and device for separating gaseous pollutants from hot process gases by absorption and a mixer for moistening particulate dust
    10.
    发明申请
    Method and device for separating gaseous pollutants from hot process gases by absorption and a mixer for moistening particulate dust 有权
    通过吸收将气态污染物与热过程气体分离的方法和装置，以及用于润湿颗粒物的混合器

    公开(公告)号：US20050244317A1

    公开(公告)日：2005-11-03

    申请号：US10527877

    申请日：2003-09-17

    申请人： Stefan Ahman ,  Nils Bringfors

    发明人： Stefan Ahman ,  Nils Bringfors

    IPC分类号： B01D53/50 ,  B01F3/12 ,  B01F7/00 ,  B01F7/02 ,  B01F15/00 ,  B01F15/06 ,  C01F3/00

    CPC分类号： B01F3/1271 ,  B01D53/508 ,  B01F3/1228 ,  B01F7/00908 ,  B01F7/022 ,  B01F15/00863 ,  B01F15/063

    摘要： In a method of separating gaseous pollutants from hot process gases, the process gases are passed through a contact reactor (22), in which an absorbent material in a moistened state is introduced to convert the gaseous pollutants into separable dust. The dust is separated in a dust separator (10). The separated dust is cooled in a first step by being brought into direct contact with a cooling fluid. In a second step, the cooled dust is mixed with a gas containing water vapour, said gas having a saturation temperature that is higher than the temperature of the cooled dust. The dust moistened by condensation of the water vapour is introduced into the contact reactor (22) to be mixed with the process gases. A mixer (24) for moistening of absorbent material has a first end (26) and a second end (28) and is divided into two zones. A first zone is a cooling zone (68) located at the first end (26). A second zone is a moistening zone (80) located at the second end (28).

    摘要翻译： 在将气体污染物与热处理气体分离的方法中，工艺气体通过接触反应器（22），其中引入湿润状态的吸收材料以将气态污染物转化成可分离的粉尘。 灰尘在灰尘分离器（10）中分离。 分离的灰尘通过与冷却流体直接接触而在第一步骤中冷却。 在第二步骤中，将冷却的灰尘与含有水蒸气的气体混合，所述气体的饱和温度高于冷却的粉尘的温度。 通过水蒸汽冷凝润湿的灰尘被引入到接触反应器（22）中以与工艺气体混合。 用于润湿吸收材料的混合器（24）具有第一端（26）和第二端（28），并被分成两个区域。 第一区域是位于第一端（26）处的冷却区（68）。 第二区域是位于第二端（28）处的润湿区（80）。