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19 条记录 (耗时 0.012 秒)

    Method of purifying yellow phosphorus
    1.
    发明授权
    Method of purifying yellow phosphorus 有权

    公开(公告)号：US09845241B2

    公开(公告)日：2017-12-19

    申请号：US14958854

    申请日：2015-12-03

    申请人： OCI COMPANY LTD.

    发明人： Seung-Hyun Han ,  Wook Chang ,  Yeon-Hee Lee

    IPC分类号： C01B25/047

    CPC分类号： C01B25/047

    摘要： The present invention relates to a method of purifying yellow phosphorus, and more particularly, to a method of effectively removing impurities from yellow phosphorus used as raw materials of a phosphoric acid to increase purity of the phosphoric acid, the method including: removing impurities from the phosphoric acid by adding an oxidizing agent to the yellow phosphorus, followed by stirring; and adding a solution including an additive having a specific functional group in a chemical structure to the yellow phosphorus from which the impurities are removed, followed by stirring.

    Purification of yellow phosphorus
    2.
    发明授权
    Purification of yellow phosphorus 失效
    黄磷的纯化

    公开(公告)号：US3780164A

    公开(公告)日：1973-12-18

    申请号：US3780164D

    申请日：1971-07-09

    申请人： KNAPSACK AG

    发明人： MULLER F ,  STENDENBACH K ,  SCHRODTER H ,  HARTLAPP G ,  FORST W

    IPC分类号： C01B25/047 ,  C01B25/02 ,  C01B25/04

    CPC分类号： C01B25/047

    摘要： PURIFICATION OF YELLOW PHOSPHORUS, WHICH MAY HAVE BEEN PRODUCED BY ELECTROTHERMAL MEANS, BY INTIMATELY MIXING LIQUID PHOSPHORUS WITH SULFURIC ACID. A PHOSPHORUS/SULFURIC ACID-MIXTURE COMING FROM A STIRRING ZONE IS CONVEYED TO A HEATED SEPARATING ZONE, IN WHICH THE MIXTURE IS SEPARATED, AT A TEMPERATURE AT LEAST AS HIGH AS THE MELTING POINT OF PHOSPHORUS, INTO AN UPPER LAYER OF LIQUID PHOSPHORUS AND A LOWER LAYER OF SULFURIC ACID; THE TWO LAYERS ARE COOLED DOWN TO A TEMPERATURE LOWER THAN THE MELTING POINT OF PHOSPHORUS AND THE LOWER LAYER OF SULFURIC ACID IS DISCHARGED; THE UPPER LAYER OF SOLIDIFIED PHOSPHORUS IS MELTED BY SUPPLYING HEAT THERETO AND DELIVERED TO A WASH ZONE, IN WHICH THE PHOSPHORUS IS WATER-WASHED AND FREED FROM ADHERING SULFURIC ACID.

    METHOD, APPARATUS AND SPECIAL PHOSPHORUS RECOVERY DEVICE FOR RECOVERING YELLOW PHOSPHORUS FROM ELECTRIC FURNACE PHOSPHORUS-PRODUCING FURNACE GAS
    3.
    发明申请
    METHOD, APPARATUS AND SPECIAL PHOSPHORUS RECOVERY DEVICE FOR RECOVERING YELLOW PHOSPHORUS FROM ELECTRIC FURNACE PHOSPHORUS-PRODUCING FURNACE GAS 审中-公开

    公开(公告)号：US20170217773A1

    公开(公告)日：2017-08-03

    申请号：US15107829

    申请日：2013-12-30

    申请人： INTERMET TECHNOLOGIES CHENGDU CO,. LTD

    发明人： Lin Gao ,  Tao WANG ,  Dingjiang GUO

    IPC分类号： C01B25/047 ,  B01D53/22 ,  B01D53/00 ,  C01B25/027 ,  B01J19/08

    CPC分类号： C01B25/047 ,  B01D53/002 ,  B01D53/229 ,  B01J19/088 ,  B01J2219/0805 ,  B01J2219/0879 ,  C01B25/027

    摘要： A method, apparatus and special phosphorus recovery device for recovering yellow phosphorus from an electric furnace phosphorus-producing furnace gas without the use of a spray cooling mode during the condensation of the electric furnace phosphorus-producing furnace gas. The method comprises the steps: 1) dedusting and purifying the electric furnace phosphorus-producing furnace gas by using a dry-type dedusting system, so that the solid content of the electric furnace phosphorus-producing furnace gas in less than or equal to 10-50 mg/m3; 2) conveying the purified furnace gas to a phosphorus recovery device, the phosphorus recovery device being provided with a heat exchange chamber formed by a shell and a recuperator arranged inside the heat exchange chamber; 3) feeding into an internal flow path of the recuperator a low-temperature medium, which conducts non-mixed heat transfer with the furnace gas under the isolation of the recuperator, so that the yellow phosphorus is condensed, separated out, and then vastly attached to the surface of the recuperator, and the tail gas arising from heat exchange is discharged out of the phosphorus recovery device; and 4) feeding a high-temperature medium for replacing the low-temperature medium into the internal flow path of the recuperator.

    Process for purifying yellow phosphorus
    4.
    发明授权
    Process for purifying yellow phosphorus 失效
    黄磷纯化方法

    公开(公告)号：US4664896A

    公开(公告)日：1987-05-12

    申请号：US551779

    申请日：1983-11-14

    申请人： Richard E. Hall

    发明人： Richard E. Hall

    IPC分类号： C01B25/027 ,  C01B25/047 ,  C01B25/12

    CPC分类号： C01B25/12 ,  C01B25/027 ,  C01B25/047

    摘要： In the process of purifying yellow phosphorus by treating liquid yellow phosphorus with active carbon and separating the purified phosphorus from the spent active carbon containing adhering phosphorus, the spent active carbon is mixed with sufficient liquid phosphorus to form a slurry which is pumped to a disposal zone. The disposal zone is preferably a phosphorus furnace.

    摘要翻译： 在通过用活性炭处理液态黄磷并将纯化的磷从含有活性炭的附着磷中分离出来的黄磷过程中，将废活性炭与足够的液态磷混合形成浆料，将其泵送到处理区 。 处理区优选为磷炉。

    Purification of yellow phosphorus
    5.
    发明授权
    Purification of yellow phosphorus 失效
    黄磷的纯化

    公开(公告)号：US3836675A

    公开(公告)日：1974-09-17

    申请号：US27243672

    申请日：1972-07-17

    申请人： KNAPSACK AG

    发明人： HARTLAPP G ,  HAAS H ,  STENDENBACH K

    IPC分类号： C01B25/047 ,  C01B25/02 ,  C01B25/04

    CPC分类号： C01B25/047

    摘要： PURIFICATION OF YELLOW PHOSPHORUS, PHOSPHORUS IS MIXED IN A MIXING ZONE WITH BETWEEN 0.5 AND 5 WEIGHT PERCENT OF AN AQUEOUS SUSPENSION OF ACTIVE CARBON CONTAINING BETWEEN 50 AND 500 KG./CUBIC METER OF ACTIVE CARBON, THE PERCENTAGES BEING BASED ON PHOSHORUS, THE ACTIVE CARBON AND THE PHOSPHORUS ARE ALLOWED TO REMAIN IN CONTACT WITH ONE ANOTHER FOR A PERIOD OF TIME BETWEEN 0.5 AND 15 MINUTES, AND THE PHOSPHORUS IS FILTERED IN A FILTRATION ZONE AS AS TO SEPARATE THE ACTIVE CARBON THEREFROM.

    Apparatus for distilling phosphorus
    9.
    发明授权
    Apparatus for distilling phosphorus 失效
    用于蒸馏磷的设备

    公开(公告)号：US4575403A

    公开(公告)日：1986-03-11

    申请号：US616377

    申请日：1984-06-01

    申请人： Harvey Rosenhouse ,  Jeffrey C. Dore

    发明人： Harvey Rosenhouse ,  Jeffrey C. Dore

    IPC分类号： B01D3/10 ,  B01D3/14 ,  C01B25/047

    CPC分类号： B01D3/14 ,  B01D3/10 ,  C01B25/047

    摘要： A continuous process for reducing the arsenic content of phosphorus is described in which the impure phosphorus is continually passed through a heat exchanger and heated to vaporize a portion of the phosphorus at a temperature not above 200.degree. C., separating the vaporized phosphorus in a disengaging zone under subatmospheric pressure and introducing it into a fractionating zone under subatmospheric pressure, fractionating the phosphorus from the less volatile arsenic, condensing under subatmospheric pressure low-arsenic phosphorus rising from the fractionating zone, returning a portion of the low-arsenic phosphorus condensate as reflux to the column, removing high-arsenic liquid phosphorus as bottoms from the fractionating zone, and recovering the remaining portion of low-arsenic phosphorus condensate as product.

    摘要翻译： 描述了用于降低磷的砷含量的连续方法，其中不纯的磷不断地通过热交换器并在不高于200℃的温度下加热以蒸发一部分磷，将蒸发的磷分离出来 在低于大气压的压力下将其引入分馏区，从较不易挥发的砷中分离出磷，在低于大气压的低砷压力下从分馏区上升冷凝，将一部分低砷磷缩合物返回 从塔中除去高砷液态磷作为塔底馏分，回收剩余部分的低砷磷凝析物作为产物。

    Process for purifying yellow phosphorus
    10.
    发明授权
    Process for purifying yellow phosphorus 失效
    黄磷纯化方法

    公开(公告)号：US4375457A

    公开(公告)日：1983-03-01

    申请号：US307128

    申请日：1981-09-30

    申请人： Fawzy G. Sherif

    发明人： Fawzy G. Sherif

    IPC分类号： C01B25/047 ,  C01B25/01 ,  C01B25/02 ,  C01B25/04

    CPC分类号： C01B25/047

    摘要： A method for purifying yellow phosphorus is disclosed comprising contacting the molten phosphorus with a solid phosphorus acid containing catalyst comprising an oxygen acid of phosphorus carried on an inert absorbant support. The purified phosphorus is thereafter separated from the solid catalyst and preferably is separated therefrom by filtration through the catalyst layer.

    摘要翻译： 公开了一种纯化黄磷的方法，其包括使熔融磷与包含在惰性吸收剂载体上承载的磷的含氧酸的固体含磷酸催化剂接触。 然后将纯化的磷从固体催化剂中分离出来，优选通过催化剂层过滤分离。