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107 条记录 (耗时 0.023 秒)

    Method and device for producing polyphosphoric acid
    1.
    发明授权
    Method and device for producing polyphosphoric acid 有权
    生产多磷酸的方法和装置

    公开(公告)号：US08845990B2

    公开(公告)日：2014-09-30

    申请号：US13260410

    申请日：2010-03-25

    申请人： Alain Germeau ,  Bernard Heptia

    发明人： Alain Germeau ,  Bernard Heptia

    IPC分类号： C01B25/234 ,  C01B25/24 ,  B01J19/26 ,  B01J8/02

    CPC分类号： C08G79/04 ,  B01J8/025 ,  B01J8/0278 ,  B01J10/00 ,  B01J19/24 ,  B01J19/26 ,  B01J2219/00157 ,  C01B25/24

    摘要： A method and device for producing polyphosphoric acid burns a fuel in combustion air in a combustion chamber, sprays a spray fluid comprising substantially pure orthophosphoric acid and undertakes polymerization-condensation of the pure orthophosphoric acid. A polyphosphoric acid in the form of an acid mist accompanied by formation of gases which mix with combustion gases resulting from burning of the fuel is formed to reach a predetermined temperature, wherein the mixture causes sudden lowering of combustion gas temperature. The acid mix is separated from the gas mixture and the polyphosphoric acid is collected at a bottom of the combustion chamber and the gas mixture is outputted via a lower part of the combustion chamber separate from the collection of polyphosphoric acid.

    摘要翻译： 用于生产多磷酸的方法和装置燃烧在燃烧室中的燃烧空气中的燃料，喷射包含基本上纯正磷酸的喷雾流体并进行纯正磷酸的聚合 - 缩合。 形成酸雾形式的多磷酸伴随着与燃烧燃烧产生的燃烧气体混合的气体的形成，达到预定温度，其中混合物引起燃烧气体温度的突然降低。 酸性混合物与气体混合物分离，聚磷酸在燃烧室的底部收集，并且气体混合物经由燃烧室的下部与多聚磷酸的收集分离而输出。

    Method and Device for Producing Polyphosphoric Acid
    2.
    发明申请
    Method and Device for Producing Polyphosphoric Acid 有权
    生产多磷酸的方法和装置

    公开(公告)号：US20120058038A1

    公开(公告)日：2012-03-08

    申请号：US13260410

    申请日：2010-03-25

    申请人： Alain Germeau ,  Bernard Heptia

    发明人： Alain Germeau ,  Bernard Heptia

    IPC分类号： C01B25/24 ,  B01J10/00

    CPC分类号： C08G79/04 ,  B01J8/025 ,  B01J8/0278 ,  B01J10/00 ,  B01J19/24 ,  B01J19/26 ,  B01J2219/00157 ,  C01B25/24

    摘要： A method and device for producing polyphosphoric acid burns a fuel in combustion air in a combustion chamber, sprays a spray fluid comprising substantially pure orthophosphoric acid and undertakes polymerization-condensation of the pure orthophosphoric acid. A polyphosphoric acid in the form of an acid mist accompanied by formation of gases which mix with combustion gases resulting from burning of the fuel is formed to reach a predetermined temperature, wherein the mixture causes sudden lowering of combustion gas temperature. The acid mix is separated from the gas mixture and the polyphosphoric acid is collected at a bottom of the combustion chamber and the gas mixture is outputted via a lower part of the combustion chamber separate from the collection of polyphosphoric acid.

    摘要翻译： 用于生产多磷酸的方法和装置燃烧在燃烧室中的燃烧空气中的燃料，喷射包含基本上纯正磷酸的喷雾流体并进行纯正磷酸的聚合 - 缩合。 形成酸雾形式的多磷酸伴随着与燃烧燃烧产生的燃烧气体混合的气体的形成，达到预定温度，其中混合物引起燃烧气体温度的突然降低。 酸性混合物与气体混合物分离，聚磷酸在燃烧室的底部收集，并且气体混合物经由燃烧室的下部与多聚磷酸的收集分离而输出。

    Two-stage concentration for superphosphoric acid
    4.
    发明授权
    Two-stage concentration for superphosphoric acid 失效
    二级浓度超级磷酸

    公开(公告)号：US4551319A

    公开(公告)日：1985-11-05

    申请号：US637732

    申请日：1984-08-06

    申请人： Pierre Sanchez ,  Pierre Laudat

    发明人： Pierre Sanchez ,  Pierre Laudat

    IPC分类号： C01B25/24 ,  C01B25/16 ,  B01D1/00

    CPC分类号： C01B25/24

    摘要： A process for the concentration of phosphoric acid by evaporation under vacuum in two stages to produce superphosphoric acid, the pressure inside the exchanger is kept equal to or greater than 0.35 bar higher than that in the evaporator vessel.

    摘要翻译： 通过两个阶段的真空蒸发浓缩磷酸的过程，以产生超磷酸，交换器内部的压力保持等于或大于蒸发器容器中的0.35巴。

    Process for the dearsenication of polyphosphoric acid
    5.
    发明授权
    Process for the dearsenication of polyphosphoric acid 失效
    多磷酸脱砷的方法

    公开(公告)号：US3991164A

    公开(公告)日：1976-11-09

    申请号：US514450

    申请日：1974-10-15

    申请人： Wolfgang Scheibitz ,  Hasso Spott ,  Gero Heymer

    发明人： Wolfgang Scheibitz ,  Hasso Spott ,  Gero Heymer

    IPC分类号： C01B25/24 ,  C01B21/16

    CPC分类号： C01B25/24

    摘要： Polyphosphoric acid is dearsenicated by placing the polyphosphoric acid in a reactor; adding a phosphorus oxo-compound containing phosphorus in the monovalent or trivalent electropositive oxidation stage; heating the resulting mixture to effect disproportionation of the phosphorus oxo-compound; and removing the resulting off-gas having arsenic therein.

    摘要翻译： 多磷酸通过将多磷酸置于反应器中来进行脱砷; 在一价或三价正电氧化阶段加入含磷磷氧化合物; 加热所得混合物以实现磷氧化合物的歧化; 并除去其中具有砷的所得废气。

    Process for the manufacture of pyrophosphoric acid by crystallization
    6.
    发明授权
    Process for the manufacture of pyrophosphoric acid by crystallization 失效
    通过结晶制备磷酸的方法

    公开(公告)号：US3853486A

    公开(公告)日：1974-12-10

    申请号：US22877272

    申请日：1972-02-23

    申请人： KNAPSACK AG

    发明人： HEYMER G ,  WASEL NIELEN H

    IPC分类号： C01B25/24 ,  B01D9/00

    CPC分类号： C01B25/24 ,  B01D9/0004 ,  B01D9/0036

    摘要： Production of pure, crystallized pyrophosphoric acid with a strength of at least 95 percent. A polyphosphoric acid is treated so as to establish a P2O5-concentration between 79 and 81 weight percent therein, between 1 and 5 weight percent of crystallized pyrophosphoric acid seed crystals are added thereto, the resulting mixture is heated, while continuously kneading it with exclusion of moisture, to temperatures between 40* and 50*C, the mixture is cooled once upon the start of crystallization, down to temperatures between 20* and 35*C, and kneading is continued until the crystallization is complete. The heat of crystallization is dissipated by subjecting the mixture to further cooling so as to prevent the mixture from excelling a temperature of 50*C.

    摘要翻译： 生产纯度至少为95％的结晶焦磷酸。 处理多磷酸以便在其中形成79至81重量％的P2O5浓度，向其中加入1至5重量％的结晶焦磷酸晶种，将所得混合物加热，同时不加混合 水分至40〜50℃的温度，结晶开始后将混合物冷却一次，至20〜35℃的温度，继续捏合直到结晶结束。 通过使混合物进一步冷却来消散结晶热，以防止混合物的温度优于50℃。

    Transformation of phosphorus compounds obtained as by-products
    7.
    发明授权
    Transformation of phosphorus compounds obtained as by-products 失效
    作为副产物获得的磷化合物的转化

    公开(公告)号：US3656898A

    公开(公告)日：1972-04-18

    申请号：US3656898D

    申请日：1969-05-14

    申请人： KNAPSACK AG

    发明人： HARNISCH HEINZ ,  THUMMLER URSUS ,  TRAULSEN KARL ,  HARTLAPP GERHARD

    IPC分类号： C01B25/18 ,  C01B25/24 ,  C01B25/39 ,  C01B25/12

    CPC分类号： C01B25/395 ,  C01B25/18 ,  C01B25/24

    摘要： A process whereby substantially low-valent phosphorus-containing compounds in waste by-products obtained in the manufacture of mineral and organic phosphorus compounds are converted into useful phosphoric acid, polyphosphoric acid, or corresponding alkali metal salts thereof despite the presence of partially noncombustible material, organic pentavalent compounds, and nonphosphorus-containing compounds within said material; by introducing the by-products into an elemental phosphorus-oxygen flame having excess oxygen, the by-products being introduced in an amount so as not to exceed 50 percent by weight of the elemental phosphorus being burned in said flame.

    摘要翻译： 在矿物和有机磷化合物的制造中获得的废弃副产物中基本上低价的含磷化合物转化为有用的磷酸，多磷酸或其相应的碱金属盐的方法，尽管存在部分不可燃的 材料，有机五价化合物和所述材料内的非含磷化合物; 通过将副产物引入具有过量氧的元素磷氧火焰中，副产物的引入量不超过在所述火焰中燃烧的元素磷的50重量％。

    Concentration of phosphoric acid
    8.
    发明授权
    Concentration of phosphoric acid 失效
    磷酸的浓度

    公开(公告)号：US3656897A

    公开(公告)日：1972-04-18

    申请号：US3656897D

    申请日：1969-06-02

    申请人： COMINCO LTD

    发明人： WHITE ARNOLD G ,  SMITH THOMAS E ,  WORK LYALL C

    IPC分类号： C01B25/234 ,  C01B25/24 ,  C01B25/18

    CPC分类号： C01B25/24 ,  C01B25/2346 ,  Y10S159/01 ,  Y10S159/19

    摘要： A process for concentrating wet-process phosphoric acid by passing an alternating current between non-reactive, e.g. graphite, electrodes through an aqueous solution of wet-process phosphoric acid at an electrode surface current density in the range of about 5 to about 20 amperes per square inch, preferably about 7 to 15 amperes per square inch.

    摘要翻译： 一种通过使非反应性（例如，非反应性）之间的交流电流来浓缩湿法磷酸的方法。 石墨，电极通过湿法磷酸的水溶液，电极表面电流密度在约5至约20安培/平方英寸的范围内，优选约7至15安培/平方英寸。