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111 条记录 (耗时 0.014 秒)

    Separation of hydrogen sulfide from gaseous and non-aqueous liquid streams
    3.
    发明授权
    Separation of hydrogen sulfide from gaseous and non-aqueous liquid streams 失效
    从气态和非水性液体流中分离出硫化氢

    公开(公告)号：US4526774A

    公开(公告)日：1985-07-02

    申请号：US604460

    申请日：1984-04-27

    申请人： Edward T. Maas, Jr. ,  Davida W. Kalina

    发明人： Edward T. Maas, Jr. ,  Davida W. Kalina

    IPC分类号： C01B17/033 ,  C01B17/05 ,  C25B1/00

    CPC分类号： C01B17/05 ,  C01B17/033 ,  C25B1/00

    摘要： An indirect hydrogen sulfide conversion process for the production of elemental hydrogen and sulfur. The process is based upon the electrochemical oxidation of iodide in an aqueous solution with a pH in the range of 0 to 1 at high current densities and current efficiencies. Hydrogen gas is produced concurrently with soluble triiodide. Treatment of a gaseous or non-aqueous liquid stream with electrolyte solutions containing triiodide yields a sulfur product in plastic form. The sulfur product can be recrystallized from a solvent to yield sulfur of comparable purity to that presently produced.

    摘要翻译： 用于生产元素氢和硫的间接硫化氢转化方法。 该方法基于在高电流密度和电流效率下，pH在0至1范围内的水溶液中的碘化物的电化学氧化。 氢气与可溶性三碘化物同时生产。 用包含三碘化物的电解质溶液处理气态或非水液体流产生塑料形式的硫产物。 硫产物可以从溶剂中重结晶以产生与目前生产的相当纯度的硫。

    Sulfur recovery process
    4.
    发明授权
    Sulfur recovery process 失效
    硫回收过程

    公开(公告)号：US3939256A

    公开(公告)日：1976-02-17

    申请号：US233352

    申请日：1972-03-09

    申请人： William G. Kazel

    发明人： William G. Kazel

    IPC分类号： C01B17/027 ,  C01B17/033 ,  C01B17/14

    CPC分类号： C01B17/033

    摘要： A method for the separation and recovery of elemental sulfur from mixtures of foreign material and sulfur which comprises washing the foreign material and sulfur mixture to remove impurities which are deleterious to coalescence of the sulfur particles followed by adding as a cleansing and coalescence agent an alkali metal hydroxide or carbonate, heating the mixture to a temperature above the melting point of sulfur for one hour to coalesce the sulfur particles, and separating the coalesced sulfur from the foreign material.

    摘要翻译： 一种用于从异物和硫的混合物中分离和回收元素硫的方法，其包括洗涤异物和硫混合物以除去对硫颗粒的聚结有害的杂质，然后加入作为清洁和聚结剂的碱金属 氢氧化物或碳酸盐，将混合物加热至高于硫的熔点1小时，使硫颗粒聚结，并将聚结的硫与异物分离。

    Process for recovery of sulfur values
    5.
    发明授权
    Process for recovery of sulfur values 失效
    恢复硫值的过程

    公开(公告)号：US3859425A

    公开(公告)日：1975-01-07

    申请号：US30985672

    申请日：1972-11-27

    申请人： STAUFFER CHEMICAL CO

    发明人： WOOD JR ARTHUR S M ,  DARRAGH KIRK VAIL

    IPC分类号： C01B17/033 ,  C01B17/04

    CPC分类号： C01B17/033

    摘要： The invention is a process for recovering sulfur values from impure sulfur containing iron and sulfur chloride impurities in which a sulfur-sulfur chloride mixture is dissolved in a solvent, the solution is filtered to remove undissolved material, the sulfur is crystallized and then separated from the mother liquor.

    Apparatus for crystallization and recovery of elemental sulfur from solvents
    6.
    发明授权
    Apparatus for crystallization and recovery of elemental sulfur from solvents 失效
    用于溶剂中元素硫的结晶和还原的装置

    公开(公告)号：US3762880A

    公开(公告)日：1973-10-02

    申请号：US3762880D

    申请日：1971-12-30

    申请人： CHAPMAN WOOD & GRISWOLD LTD

    发明人： TISDEL L ,  SCOTT H

    IPC分类号： C01B17/02 ,  C01B17/033 ,  B01D9/02 ,  C01B17/08

    CPC分类号： C01B17/0205 ,  C01B17/033

    摘要： Apparatus for the crystallization and recovery of sulfur including a crystallizer vessel with inlet means for introducing a solvent with sulfur dissolved therein into the vessel at one level, and means for injecting an immiscible heat-exchange liquid at a different temperature from that of the solvent into the vessel at at least one other level different from the first level. The apparatus includes individual means for withdrawing heat-exchange liquid from the vessel, means for withdrawing crystalline sulfur slurry therefrom, and means for separating sulfur from this slurry.