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113 条记录 (耗时 0.02 秒)

    Reduction-oxidation furnace for making phosphorus by thermal process
    21.
    发明授权
    Reduction-oxidation furnace for making phosphorus by thermal process 有权
    通过热处理制备磷的还原氧化炉

    公开(公告)号：US08741226B2

    公开(公告)日：2014-06-03

    申请号：US13321975

    申请日：2010-05-27

    申请人： Xiaomei Feng ,  Jin Li ,  Dong Li ,  Guangming Li ,  Zhenmin Zhang ,  Jiacai Wang ,  Jian Zou ,  Yongqiang Ma ,  Jun Hou

    发明人： Xiaomei Feng ,  Jin Li ,  Dong Li ,  Guangming Li ,  Zhenmin Zhang ,  Jiacai Wang ,  Jian Zou ,  Yongqiang Ma ,  Jun Hou

    IPC分类号： B01J19/00 ,  C01B25/00

    CPC分类号： F27D3/16 ,  C01B25/01 ,  C01B25/02 ,  C01B25/04 ,  F27B1/10

    摘要： The present invention discloses a reduction-oxidation furnace for thermally refining phosphorus. The reduction-oxidation furnace comprises a furnace body and a blow gun, wherein the furnace body has a slag outlet, a fume outlet, and a melt inlet for feeding melts formed by melting rock phosphate into the furnace body and wherein the blow gun has an end inserted into the furnace body. The content of impurities in fumes containing phosphorus pentaoxide is low, the phosphorus pentaoxide can be easily extracted with a high purity of the phosphorus pentaoxide and at low cost by means of the reduction-oxidation furnace for thermally refining phosphorus according to the present invention.

    摘要翻译： 本发明公开了一种用于热精炼磷的还原氧化炉。 还原氧化炉包括炉体和吹气枪，其中炉体具有炉渣出口，烟气出口和用于将熔融磷酸盐熔融形成的熔体进料到炉体中的熔体入口，并且其中喷枪具有 端插入炉体。 含有五氧化二磷的烟气中的杂质含量低，五氧化二磷可以用五氧化二磷的高纯度容易地提取，并且通过根据本发明的用于热精炼磷的还原氧化炉以低成本提取。

    Method of removing phosphorus from suldge
    23.
    发明申请
    Method of removing phosphorus from suldge 失效
    从Suldge中除磷的方法

    公开(公告)号：US20020187095A1

    公开(公告)日：2002-12-12

    申请号：US09859254

    申请日：2001-05-17

    发明人： Mohan S. Saran

    IPC分类号： C01B025/04

    CPC分类号： C02F11/00 ,  C01B25/02 ,  C02F1/001 ,  C02F1/02 ,  C02F1/38 ,  C02F1/58 ,  C02F2101/105 ,  Y10S210/906

    摘要： A method of recovering elementary phosphorus from an aqueous sludge containing about 1 to about 15 wt % dispersed particles of phosphorus is disclosed. To the sludge is added about 1 to about 20 wt %, based on the weight of the phosphorus present in said sludge, of a phosphate salt that has the general formula 1 where R is an alkali metal or ammonium and n is 0 to 30. The phosphorus in the sludge is melted and the solids in the sludge are separated from liquid phosphorus and water. Liquid phosphorus is then separated from the water.

    摘要翻译： 公开了从含有约1至约15重量％的磷分散颗粒的含水污泥中回收元素磷的方法。 基于所述污泥中存在的磷的重量，向污泥中加入约1至约20重量％的具有通式的磷酸盐，其中R为碱金属或铵，n为0至30。 污泥中的磷被熔化，污泥中的固体与液态磷和水分离。 然后将液体磷与水分离。

    Method for supplying phosphorous vapor
    24.
    发明授权
    Method for supplying phosphorous vapor 失效
    磷蒸气的供给方法

    公开(公告)号：US5588969A

    公开(公告)日：1996-12-31

    申请号：US412678

    申请日：1995-03-29

    申请人： James N. Baillargeon ,  Alfred Y. Cho

    发明人： James N. Baillargeon ,  Alfred Y. Cho

    IPC分类号： B01D7/00 ,  C01B25/02

    CPC分类号： B01D7/00 ,  C01B25/02

    摘要： In accordance with the invention, phosphorous vapor is provided by in situ conversion of red phosphorous to white phosphorous and permitting the flow of vapor from said white phosphorous. The conversion is effected in a low pressure cell having a high temperature region for evaporating red phosphorous and a low temperature region for condensing the resulting vapor into white phosphorous. At room temperature equilibrium, the vapor pressure is dominated by the white phosphorous.

    摘要翻译： 根据本发明，通过将红磷原位转化成白色磷并允许来自所述白色磷的蒸汽的流动来提供磷蒸气。 转化在具有用于蒸发红磷的高温区域的低压电池和用于将所得蒸气冷凝成白色磷的低温区域进行。 在室温平衡下，蒸气压由白磷主导。

    Monoclinic phosphorus formed from vapor in the presence of an alkali metal
    25.
    发明授权
    Monoclinic phosphorus formed from vapor in the presence of an alkali metal 失效
    在碱金属存在下由蒸气形成单斜磷

    公开(公告)号：US4620968A

    公开(公告)日：1986-11-04

    申请号：US419537

    申请日：1982-09-17

    申请人： Christian G. Michel ,  Rozalie Schachter ,  Mark A. Kuck ,  John A. Baumann ,  Paul M. Raccah

    发明人： Christian G. Michel ,  Rozalie Schachter ,  Mark A. Kuck ,  John A. Baumann ,  Paul M. Raccah

    IPC分类号： C01B25/00 ,  C01B25/02 ,  C01B25/04 ,  C01B25/08 ,  C03C17/22 ,  C09K21/04 ,  C23C14/06 ,  C23C14/54 ,  C30B23/02 ,  C30B25/02 ,  H01L29/24 ,  H01L51/05 ,  C01B25/01 ,  C04B35/00

    CPC分类号： H01L29/24 ,  C01B25/003 ,  C01B25/02 ,  C01B25/04 ,  C01B25/08 ,  C01B25/081 ,  C01B25/088 ,  C03C17/22 ,  C09K21/04 ,  C23C14/06 ,  C23C14/541 ,  C30B23/02 ,  C30B25/02 ,  C30B29/10 ,  C03C2217/28 ,  C03C2217/283 ,  C03C2217/29 ,  C03C2218/15 ,  H01L51/0508 ,  H01L51/0512

    摘要： Monoclinic phosphorus is produced in a single source vapor transport apparatus comprising a sealed evacuated ampoule containing a mixture or compound of phosphorus and an alkali metal with the phosphorus to alkali metal ratio being 11 or greater. The charge is heated to 550.degree.-560.degree. C. and the monoclinic phosphorus crystals are formed on the cooler surface at the top of the ampoule over the temperature range of 500.degree.-560.degree. C. The preferred heating temperature is in the neighborhood of 555.degree. C. and the preferred deposition temperature is in the neighborhood of 539.degree. C. Alkali metals that may be employed include sodium, potassium, rubidium and cesium. The monoclinic phosphorus crystals form in two habits. Those formed in the presence of sodium and cesium are in the form of flat square platelets up to 4 mm on a side and 2 mm thick. These platelets may be easily cleaved into thinner platelets, like mica. The other habit formed in the presence of potassium and rubidium is in the form of a truncated pyramid up to 4 mm.times.3 mm.times.2 mm high. This habit is hard to cleave. The crystals are semiconductors with a band gap, indicated by photoluminescence, of about 2.1 eV at room temperature. Powder X-ray diffraction, and differential thermal analysis are consistent with that reported for Hittorf's phosphorus prepared according to the prior art. The crystals are a deep red on transmission and birefringent, rotating the plane of polarization in a polarizing microscope. They contain from 50 to 2000 parts per million of alkali metal and therefore may be utilized as a form of very pure phosphorus as well as for their semiconducting and birefringent qualities and as phosphors.

    摘要翻译： 在单源蒸气输送装置中制备单斜磷，其包括含有磷与碱金属的比例为11以上的磷和碱金属的混合物或化合物的密闭的真空安瓿。 将电荷加热至550〜-560℃，在500〜-560℃的温度范围内，在安瓿顶部的较冷的表面形成单斜晶磷晶体。优选的加热温度在 555℃，优选的沉积温度在539℃附近。可以使用的碱金属包括钠，钾，铷和铯。 单斜磷晶体形成两种习惯。 在钠和铯存在下形成的那些是平面方形血小板的形式，一侧高达4毫米，2mm厚。 这些血小板可以容易地切割成更薄的血小板，如云母。 在钾和铷存在下形成的另一个习惯是高达4毫米×3毫米×2毫米高的截顶棱锥的形式。 这种习惯很难解剖。 晶体是在室温下具有约2.1eV的光致发光带隙的半导体。 粉末X射线衍射和差示热分析与根据现有技术制备的Hittorf磷报道的一致。 晶体是透射和双折射的深红色，在偏光显微镜中旋转偏振平面。 它们含有50至2000ppm的碱金属，因此可以用作非常纯的磷以及它们的半导体和双折射性质以及作为荧光体的形式。

    Production of phosphorus
    26.
    发明授权
    Production of phosphorus 失效
    生产磷

    公开(公告)号：US3723608A

    公开(公告)日：1973-03-27

    申请号：US11616771

    申请日：1971-02-17

    申请人： KNAPSACK AG

    发明人： MEURER PETER L ,  DORN FRIEDRICH W ,  HARNISCH HEINZ

    IPC分类号： C01B25/02

    CPC分类号： C01B25/003 ,  B01J2219/0894 ,  C01B25/01 ,  C01B25/02

    摘要： Production of phosphorus by reaction of a mixture comprising calcium phosphate, quartz sand and coke. The reaction is effected at 1,300* to 1,700* C by electrical heating in an autogenous bed of fluidized coke. The coke is used in particles with a size of 0.1 to 5 mm, and each of the calcium phosphate, quartz sand and coke components forming the mixture is used in particles with a size of 0.01 to 5 mm. The reduction furnace used in carrying out this process is comprised of a carbon furnace vessel which is fitted with at least one movable electrode projecting into it from above, a refractory heat insulation encapsulating the furnace vessel, at least one raw material inlet, at least one outlet for removal of furnace gas containing phosphorus and carbon monoxide, at least one tapping hole in the bottom portion of the vessel and the heat insulation encapsulating the vessel, for tapping off slag and ferrophosphorus.

    摘要翻译： 通过包含磷酸钙，石英砂和焦炭的混合物的反应生产磷。 通过在流化焦炭的自生床中电加热在1300〜1700℃下进行反应。 焦炭用于0.1〜5mm的粒子，形成混合物的磷酸钙，石英砂和焦炭成分各自以0.01〜5mm的粒子使用。 用于实施该方法的还原炉由碳炉容器组成，其中装有从上方突出到其中的至少一个活动电极，封装炉容器的耐火隔热材料，至少一个原料入口，至少一个 用于除去含有磷和一氧化碳的炉气的出口，容器底部中的至少一个出料口和封装容器的隔热件，用于排出炉渣和磷酸铁。