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126 条记录 (耗时 0.016 秒)

    Method for manufacturing nitric acid
    31.
    发明授权
    Method for manufacturing nitric acid 失效
    制造硝酸的方法

    公开(公告)号：US08263036B2

    公开(公告)日：2012-09-11

    申请号：US12865870

    申请日：2009-03-19

    申请人： Jean-Luc Dubois ,  Paul-Guillaume Schmitt

    发明人： Jean-Luc Dubois ,  Paul-Guillaume Schmitt

    IPC分类号： C01B21/38

    CPC分类号： C01B21/26 ,  C01B21/267

    摘要： The present invention relates to a method for manufacturing nitric acid wherein a gaseous mixture, including air and ammonia, is transported on a catalyst including platinum to carry out catalytic oxidation of the ammonia, and is characterized in that a sulfurated component is added to the gaseous mixture.

    摘要翻译： 本发明涉及一种制造硝酸的方法，其中包括空气和氨在内的气体混合物在包含铂的催化剂上运输以进行氨的催化氧化，其特征在于将一种硫化成分加到气态 混合物。

    Method for Manufacturing Nitric Acid
    33.
    发明申请
    Method for Manufacturing Nitric Acid 失效
    硝酸制造方法

    公开(公告)号：US20110002836A1

    公开(公告)日：2011-01-06

    申请号：US12865870

    申请日：2009-03-19

    申请人： Jean-Luc Dubois ,  Paul-Guillaume Schmitt

    发明人： Jean-Luc Dubois ,  Paul-Guillaume Schmitt

    IPC分类号： C01B21/38

    CPC分类号： C01B21/26 ,  C01B21/267

    摘要： The present invention relates to a method for manufacturing nitric acid wherein a gaseous mixture, including air and ammonia, is transported on a catalyst including platinum to carry out catalytic oxidation of the ammonia, and is characterized in that a sulfurated component is added to the gaseous mixture.

    摘要翻译： 本发明涉及一种制造硝酸的方法，其中包括空气和氨在内的气体混合物在包含铂的催化剂上运输以进行氨的催化氧化，其特征在于将一种硫化成分加到气态 混合物。

    INTEGRATION OF A WATER-SPLITTING PROCESS WITH PRODUCTION OF FERTILIZER PRECURSORS
    34.
    发明申请
    INTEGRATION OF A WATER-SPLITTING PROCESS WITH PRODUCTION OF FERTILIZER PRECURSORS 审中-公开
    水肥分离过程与生产肥料前体的整合

    公开(公告)号：US20080216478A1

    公开(公告)日：2008-09-11

    申请号：US11682631

    申请日：2007-03-06

    申请人： Robert S. Cherry

    发明人： Robert S. Cherry

    IPC分类号： C01B17/80 ,  C01B17/69 ,  C01B21/28 ,  C01B21/38

    CPC分类号： C01B21/38

    摘要： Methods and apparatus for the integration of a water splitting process with the production of fertilizer precursors such as ammonia, nitric acid, and sulfuric acid are provided. At least one of heat and electricity from a power plant are used to split water into hydrogen gas and oxygen gas. Nitrogen gas is provided by air separation. The hydrogen gas and nitrogen gas are used to produce ammonia. The ammonia and oxygen gas are used to produce nitric acid. The oxygen gas, water, and sulfur are used to produce sulfuric acid. Further disclosed is an apparatus for the production of nitric acid comprising a power plant and an apparatus for the production of nitric acid. Also disclosed is an apparatus for the production of sulfuric acid comprising a power plant and an apparatus for the production of sulfuric acid.

    摘要翻译： 提供了将水分离过程与生产诸如氨，硝酸和硫酸的肥料前体整合的方法和装置。 来自发电厂的热和电中至少有一个用于将水分解成氢气和氧气。 通过空气分离提供氮气。 氢气和氮气用于生产氨。 氨和氧气用于生产硝酸。 使用氧气，水和硫来生产硫酸。 还公开了一种用于生产硝酸的设备，其包括发电厂和用于生产硝酸的设备。 还公开了一种用于生产硫酸的设备，其包括发电厂和用于生产硫酸的设备。

    Method for the production of nitric acid
    35.
    发明授权
    Method for the production of nitric acid 有权
    硝酸生产方法

    公开(公告)号：US07258849B2

    公开(公告)日：2007-08-21

    申请号：US10505242

    申请日：2003-02-15

    申请人： Frank Dziobek ,  Detlev Claes ,  Joachim Johanning ,  Rainer Maurer ,  Erich Szonn

    发明人： Frank Dziobek ,  Detlev Claes ,  Joachim Johanning ,  Rainer Maurer ,  Erich Szonn

    IPC分类号： C01B21/24 ,  C01B21/26 ,  C01B21/38 ,  C01B21/40

    CPC分类号： C01B21/26 ,  C01B21/28 ,  F01K23/064 ,  Y02P20/129

    摘要： The invention relates to a method for the production of nitric acid having a concentration of between 50 and 76%, from ammonia and gas containing oxygen, under pressure, according to a single pressure method or dual pressure method. The expansion of the residual gas takes place in at least two stages in a work efficient manner. At least one device for heating the previously expanded gas to a temperature of more than 450° is disposed between every other expansion stage, using waste heat from the production process of nitric acid.

    摘要翻译： 本发明涉及一种根据单一压力法或双压法在压力下从氨和含氧气体生产浓度为50至76％的硝酸的方法。 残余气体的膨胀以至少两个阶段以有效的方式进行。 使用来自硝酸生产过程的废热，将至少一个用于将先前膨胀的气体加热到大于450°的温度的装置设置在每个其它膨胀阶段之间。

    Process and plant for extraction or recovery of acids from solutions of these acids
    37.
    发明授权
    Process and plant for extraction or recovery of acids from solutions of these acids 失效
    从这些酸的溶液中提取或回收酸的方法和装置

    公开(公告)号：US5980850A

    公开(公告)日：1999-11-09

    申请号：US752558

    申请日：1996-11-21

    申请人： Albert Lebl

    发明人： Albert Lebl

    IPC分类号： C02F1/02 ,  C01B7/01 ,  C01B7/19 ,  C01B21/38 ,  C01B21/46 ,  C23F1/46 ,  C23G1/36 ,  C01B7/03

    CPC分类号： C23G1/36 ,  Y10S423/01

    摘要： Process for extraction or recovery of acids, in particular hydrofluoric acid, hydrochloric acid and nitric acid, from solutions of these acids containing metal, by pyrohydrolytic treatment and subsequent absorption and/or condensation of the acid gases thus formed in an aqueous absorption solution, in which process the solids produced are removed. In order to guarantee economical acid recovery in existing plants without requiring large-scale adaptation, the waste pickling liquor is subjected to pre-concentration first of all before pyrohydrolysis, using the heat contained in the exhaust gas from the pyrohydrolysis. In a device for extraction or recovery of acids in particular hydrofluoric acid, hydrochloric acid and nitric acid, from solutions of these acids containing metal, comprising a feed pipe for the solution, a pyrohydrolysis reactor, and at least one absorption or condensation column connected to the exhaust gas pipe from the reactor, a device is provided for pre-concentration and upgrading of the solution.

    摘要翻译： 从这些含金属酸的溶液中萃取或回收酸，特别是氢氟酸，盐酸和硝酸的方法，通过热解法处理和随后在吸收水溶液中形成的酸性气体的吸收和/或冷凝， 该方法除去生成的固体。 为了保证现有设备中经济的酸回收，而不需要大规模的适应，废水酸洗液首先在热解之前，使用来自热解水的废气中所含的热量进行预浓缩。 在用于从含有金属的这些酸的溶液中提取或回收酸，特别是氢氟酸，盐酸和硝酸的装置中，包括用于溶液的进料管，热解解反应器和至少一个吸收或冷凝塔，连接到 来自反应器的排气管，提供用于溶液的预浓缩和升级的装置。

    Process for simultaneous removal of SO.sub.2 and NO.sub.x from gas streams
    38.
    发明授权
    Process for simultaneous removal of SO.sub.2 and NO.sub.x from gas streams 失效
    同时从气流中除去SO2和NOx的方法

    公开(公告)号：US4640825A

    公开(公告)日：1987-02-03

    申请号：US716290

    申请日：1985-03-26

    申请人： Harvey S. Rosenberg

    发明人： Harvey S. Rosenberg

    IPC分类号： B01D53/60 ,  C01B17/50 ,  C01B21/40 ,  C01B21/00 ,  C01B17/00 ,  C01B21/38 ,  C01B17/74

    CPC分类号： C01B21/40 ,  B01D53/60 ,  C01B17/50

    摘要： A process for simultaneous removal of SO.sub.2 and NO.sub.x from a gas stream that includes flowing the gas stream to a spray dryer and absorbing a portion of the SO.sub.2 content of the gas stream and a portion of the NO.sub.x content of the gas stream with ZnO by contacting the gas stream with a spray of an aqueous ZnO slurry; controlling the gas outlet temperature of the spray dryer to within the range of about a 0.degree. to 125.degree. F. approach to the adiabatic saturation temperature; flowing the gas, unreacted ZnO and absorbed SO.sub.2 and NO.sub.x from the spray dryer to a fabric filter and collecting any solids therein and absorbing a portion of the SO.sub.2 remaining in the gas stream and a portion of the NO.sub.x remaining in the gas stream with ZnO; and controlling the ZnO content of the aqueous slurry so that sufficient unreacted ZnO is present in the solids collected in the fabric filter to react with SO.sub.2 and NO.sub.x as the gas passes through the fabric filter whereby the overall feed ratio of ZnO to SO.sub.2 plus NO.sub.x is about 1.0 to 4.0 moles of ZnO per of SO.sub.2 and about 0.5 to 2.0 moles of ZnO per mole of NO.sub.x. Particulates may be removed from the gas stream prior to treatment in the spray dryer. The process further allows regeneration of ZnO that has reacted to absorb SO.sub.2 and NO.sub.x from the gas stream and acid recovery.

    摘要翻译： 一种同时从气流中除去SO 2和NO x的方法，该方法包括使气流流入喷雾干燥器，并通过接触将吸附一部分气流的SO 2含量和一部分气体流的NO x含量与ZnO 该气流用ZnO水溶液喷雾; 将喷雾干燥器的气体出口温度控制在约0°至125°F的范围内，达到绝热饱和温度; 将气体，未反应的ZnO和从反应器吸收的SO 2和NO x从喷雾干燥器中流出到织物过滤器并收集其中的任何固体，并吸收剩余在气流中的一部分SO 2和一部分留在气流中的NO x; 并控制含水浆料的ZnO含量，使得足够的未反应的ZnO存在于织物过滤器中收集的固体中，随着气体通过织物过滤器与SO2和NOx反应，从而ZnO与SO2加NO x的总进料比为 约1.0-4.0摩尔ZnO / SO 2和约0.5-2.0摩尔ZnO /摩尔NOx。 在喷雾干燥器中处理之前，颗粒可以从气流中除去。 该方法进一步允许已经从气流反应吸收SO 2和NO x并回收酸的ZnO再生。