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123 条记录 (耗时 0.022 秒)

    High efficiency chemical processing
    71.
    发明授权
    High efficiency chemical processing 失效
    高效化学加工

    公开(公告)号：US5500095A

    公开(公告)日：1996-03-19

    申请号：US224956

    申请日：1994-04-08

    申请人： Robert T. Shinagawa ,  Susan M. Jordan ,  Christopher S. Blatt

    发明人： Robert T. Shinagawa ,  Susan M. Jordan ,  Christopher S. Blatt

    IPC分类号： B01D3/32 ,  B01D3/42 ,  C01B17/88 ,  C01B17/90

    CPC分类号： B01D3/322 ,  B01D3/4205 ,  B01D3/425 ,  C01B17/88 ,  Y10S159/19 ,  Y10S203/13

    摘要： A high efficiency batch sulfuric acid reprocessor system that is capable of producing high purity acid through distillation. Methods of use are also provided. The distillation is monitored and controlled in accordance with temperatures of the system, in particular, the temperature of the column and the temperature of the vapor in a condensing chamber. A stream splitter enables the invention to selectively collect high purity product as well as remove waste or recycle condensate as reflux.

    摘要翻译： 一种能够通过蒸馏生产高纯度酸的高效率批量硫酸再处理系统。 还提供了使用方法。 根据系统的温度，特别是塔的温度和冷凝室中的蒸汽的温度来监测和控制蒸馏。 流分离器使得本发明能够选择性地收集高纯度产物以及除去废物或再循环冷凝物作为回流。

    Apparatus and processes for the concentration of sulphuric acid
    73.
    发明授权
    Apparatus and processes for the concentration of sulphuric acid 失效
    用于浓缩硫酸的装置和方法

    公开(公告)号：US4547353A

    公开(公告)日：1985-10-15

    申请号：US684077

    申请日：1984-12-20

    申请人： Gordon M. Cameron

    发明人： Gordon M. Cameron

    IPC分类号： C01B17/74 ,  C01B17/88 ,  C01B17/98 ,  B01D47/00 ,  C01B17/48

    CPC分类号： C01B17/88

    摘要： A process for producing concentrated sulphuric acid from a hot gas stream comprising water and sulphur trioxide which process comprises feeding a first portion of said gas stream through a first sulphur trioxide absorption zone and a second portion through a second sulphur trioxide absorption zone; feeding a recycled sulphuric acid stream to said first sulphur trioxide absorption zone whereby substantially all of the sulphur trioxide and sulphuric acid are removed from said first portion of said gas stream to produce an enlarged sulphuric acid stream; recycling a first portion of said enlarged sulphuric acid stream through said first sulphur trioxide absorption zone; feeding a second portion of said enlarged sulphuric acid stream to said second sulphur trioxide absorption zone; and collecting sulphuric acid product from said second sulphur trioxide absorption zone; wherein the ratio of gases to sulphuric acid in said second sulphur trioxide absorption zone is such that the sulphuric acid product leaving said zone is of the desired concentration to a maximum of the azeotropic concentration. The process is of value in the production of concentrated sulphuric acid from waste sulphuric acid.

    摘要翻译： 一种从包含水和三氧化硫的热气流中生产浓硫酸的方法，该方法包括通过第一三氧化硫吸收区和第二部分通过第二硫氧化物吸收区进料所述气流的第一部分; 将再循环的硫酸料流输送到所述第一三氧化硫吸收区，从而基本上从所述气流的所述第一部分除去三氧化硫和硫酸，产生增大的硫酸料流; 将所述扩大的硫酸流的第一部分再循环通过所述第一三氧化硫吸收区; 将所述扩大的硫酸流的第二部分进料到所述第二硫氧化物吸收区; 并从所述第二硫氧化物吸收区收集硫酸产物; 其中所述第二硫酸三氧化物吸收区中的气体与硫酸的比例使得离开所述区的硫酸产物具有达到最大共沸浓度的所需浓度。 该工艺在废硫酸生产浓硫酸中具有价值。

    Device for concentration of mineral acids, particularly sulphuric acid
    74.
    发明授权
    Device for concentration of mineral acids, particularly sulphuric acid 失效
    无机酸浓缩装置，特别是硫酸

    公开(公告)号：US4269655A

    公开(公告)日：1981-05-26

    申请号：US41220

    申请日：1979-05-21

    申请人： Hans Broberg ,  Lars Douren ,  John Troeng

    发明人： Hans Broberg ,  Lars Douren ,  John Troeng

    IPC分类号： B01D1/22 ,  B01D1/06 ,  C01B17/88 ,  C01B17/90

    CPC分类号： C01B17/88 ,  B01D1/06 ,  B01D1/065

    摘要： The present invention provides a unique structure for concentrating mineral acids, and particularly sulphuric acid wherein a plurality of long quartz tubes extend vertically through a furnace and have vertically lower ends in communication with a receiving vessel. The quartz tubes are surrounded by tube units and flow passageways are created on either side of the tube units for directing hot combustion gases along the quartz tubes, providing convective and radiative heat transfer to the tubes as required to heat the acid flowing therethrough. An assembly is positioned for generating turbulance within the gas flow passageway to achieve a vigorous turbulance of the hot combustion gases.

    摘要翻译： 本发明提供了一种用于浓缩无机酸，特别是硫酸的独特结构，其中多个长石英管垂直延伸穿过炉并且具有与接收容器连通的垂直下端。 石英管被管单元包围，并且在管单元的任一侧上形成流动通道，用于沿着石英管引导热燃烧气体，根据需要加热流过其中的酸，向管提供对流和辐射热传递。 定位组件，用于在气体流动通道内产生湍流，以实现热燃烧气体剧烈的湍流。

    Sulfurless electrolytic concentration of aqueous sulfuric acid solutions
    75.
    发明授权
    Sulfurless electrolytic concentration of aqueous sulfuric acid solutions 失效
    无水电解浓度的硫酸水溶液

    公开(公告)号：US3915821A

    公开(公告)日：1975-10-28

    申请号：US51734574

    申请日：1974-10-23

    申请人： DOW CHEMICAL CO

    发明人： CLARKE E COLIN W ,  GILBERT JEFFREY F ,  GLEW DAVID N

    IPC分类号： C01B17/88 ,  C02C5/12

    CPC分类号： C01B17/88

    摘要： An improved method for reducing the content of water in aqueous sulfuric acid solutions by electrolysis is provided wherein a sufficient amount of a chlorine containing oxidizing agent is provided in the solution in the vicinity of the cathode to prevent the build-up of sulfur deposits thereon. In an integrated system, drying of a wet fluid stream on a continuous bases is effected by contacting it with concentrated sulfuric acid and purifying and recycling the sulfuric acid by the method of this invention, only a small inventory of the sulfuric acid being required.

    摘要翻译： 提供一种通过电解来降低硫酸水溶液中水分含量的改进方法，其中在阴极附近的溶液中提供足够量的含氯氧化剂以防止硫沉积在其上。 在一体化系统中，通过将硫酸与浓硫酸接触并通过本发明的方法净化和再循环硫酸来实现在连续的基底上的湿流体流的干燥，只需要少量的硫酸。