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1.发明授权Process for purifying a sulfur dioxide containing gas with production of elemental sulfur 失效用生成元素硫来净化含二氧化硫的气体的方法
公开(公告)号：US4174383A
公开(公告)日：1979-11-13
申请号：US717943
申请日：1976-08-26
CPC分类号： C01B17/56 , B01D53/501 , C01B17/05
摘要： Process for purifying SO.sub.2 -containing gas comprising a first step of contacting said gas with an aqueous solution of an ammonium sulfite or an ammonium thiosulfate also containing ammonium sulfate, a second step of contacting the resulting solution with a H.sub.2 S-containing gas at 20.degree.-90.degree. C. to produce sulfur which is separated from the remaining solution, a third step of recyling 90 to 99.99% by volume of said remaining solution to the first step, and a fourth step of introducing 0.01 to 10% by volume of said remaining solution into a molten salt formed of ammonium sulfate and/or bisulfate so as to produce a gas containing SO.sub.2, ammonia, sulfur and steam, which is recycled to the first step.
摘要翻译： 包括用于纯化含SO 2的气体的方法，包括使所述气体与还含有硫酸铵的亚硫酸铵或硫代硫酸铵的水溶液接触的第一步骤，第二步是使所得溶液与含有H 2 S的气体在20℃下接触， 90℃，以产生与剩余溶液分离的硫，第三步骤，将90至99.99体积％的剩余溶液重新循环至第一步骤;第四步骤，将0.01至10体积％的所述剩余溶液 溶液形成由硫酸铵和/或硫酸氢盐形成的熔盐，以产生含有SO 2，氨，硫和蒸汽的气体，其被再循环到第一步。
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2.发明授权
公开(公告)号：US4081515A
公开(公告)日：1978-03-28
申请号：US801981
申请日：1977-05-31
申请人： Henri Gruhier , Andre Deschamps , Philippe Renault
发明人： Henri Gruhier , Andre Deschamps , Philippe Renault
CPC分类号： C01B17/505 , C01B17/504 , C01C1/028 , Y02P20/52
摘要： Molten ammonium sulfate is converted to ammonia and sulfur dioxide by heating in the presence of at least one molybdenum and/or tungsten compound, preferably at a temperature in the range of 350.degree. to 500.degree. C.
摘要翻译： 在至少一种钼和/或钨化合物的存在下，优选在350至500℃的温度范围内，通过加热将熔融的硫酸铵转化成氨和二氧化硫。
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公开(公告)号：US4197277A
公开(公告)日：1980-04-08
申请号：US847870
申请日：1977-11-02
申请人： Andre Sugier , Philippe Courty , Andre Deschamps , Henri Gruhier
发明人： Andre Sugier , Philippe Courty , Andre Deschamps , Henri Gruhier
IPC分类号： B01D53/86 , B01J23/84 , B01J23/847 , B01J35/10 , C01B17/04 , C01B17/50 , C01B17/54 , B01D53/34
CPC分类号： C01B17/0465
摘要： Sulfur and sulfur compounds contained in a gas are oxidized in contact with a catalyst comprising vanadium oxide, iron oxide and alumina, said catalyst having a surface higher than 30 m.sup.2 /g and being obtained by impregnation of aluminum with soluble vanadium and iron compounds.
摘要翻译： 包含在气体中的硫和硫化合物与包含氧化钒，氧化铁和氧化铝的催化剂接触地氧化，所述催化剂具有高于30m 2 / g的表面，并且通过用可溶性钒和铁化合物浸渍铝获得。
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公开(公告)号：US4148760A
公开(公告)日：1979-04-10
申请号：US858125
申请日：1977-12-06
申请人： Andre Sugier , Philippe Courty , Andre Deschamps , Henri Gruhier
发明人： Andre Sugier , Philippe Courty , Andre Deschamps , Henri Gruhier
CPC分类号： B01D53/48
摘要： Sulfur and oxidizable sulfur compound are oxidized in gas phase in the presence of a catalyst comprising vanadium oxide, iron oxide and aluminous cement. Silver and titanium oxide may also be present.
摘要翻译： 在含有氧化钒，氧化铁和高铝水泥的催化剂存在下，硫气和可氧化的硫化合物在气相中被氧化。 也可以存在银和氧化钛。
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5.发明授权Process for converting ammonium imidodisulfate, ammonium sulfamate and ammonium dithionate to sulfur dioxide and ammonia 失效将亚氨二硫酸铵，氨基磺酸铵和连二硫酸铵转化为二氧化硫和氨的方法
公开(公告)号：US4220634A
公开(公告)日：1980-09-02
申请号：US002273
申请日：1979-01-10
CPC分类号： C01B17/90 , C01B17/501 , C01C1/028 , Y02P20/52
摘要： Ammonium imidodisulfate and ammonium sulfamate may be converted to sulfur dioxide and ammonia by heating them with a reducing agent or a catalyst in a bath of molten ammonium sulfate and ammonium bisulfate. The reducing agent is sulfur or a sulfur compound and the catalyst is selected from Mo, W, Cu, Fe, Co, Cr, Mn and Ni.
摘要翻译： 亚胺二硫酸铵和氨基磺酸铵可以通过在熔融硫酸铵和硫酸氢铵浴中用还原剂或催化剂加热而转化为二氧化硫和氨。 还原剂是硫或硫化合物，催化剂选自Mo，W，Cu，Fe，Co，Cr，Mn和Ni。
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公开(公告)号：US3974257A
公开(公告)日：1976-08-10
申请号：US516918
申请日：1974-10-22
申请人： Claude Dezael , Andre Deschamps , Henri Gruhier
发明人： Claude Dezael , Andre Deschamps , Henri Gruhier
CPC分类号： B01D53/501 , C01B17/60
摘要： A SO.sub.2 containing gas, for example a stack gas, is purified according to a multi-step process, which comprises washing said gas with an aqueous ammonia solution, treating the resulting solution with hydrochloric acid, whereby SO.sub.2 and an aqueous ammonium chloride solution are obtained and separated. The ammonium chloride solution is then reacted with magnesium oxide to recovery ammonia and the resulting magnesium chloride is cracked to produce hydrochloric acid and magnesium oxide, the ammonia, hydrochloric acid and magnesium oxide being recycled to the process.
摘要翻译： 含有SO 2的气体，例如烟气，根据多步法纯化，其中包括用氨水洗涤所述气体，用盐酸处理所得溶液，由此得到SO 2和氯化铵水溶液 并分离。 然后将氯化铵溶液与氧化镁反应回收氨，所得氯化镁裂解产生盐酸和氧化镁，将氨，盐酸和氧化镁再循环至该过程。
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公开(公告)号：US4310497A
公开(公告)日：1982-01-12
申请号：US230174
申请日：1981-01-30
CPC分类号： B01D53/52 , C01B17/508
摘要： A process for purifying a gas containing hydrogen sulfide, wherein said gas is admixed with oxygen and contacted with a carbon mass of specific surface higher than 50 m2/g and containing at least one oxide and/or sulfate of iron and/or copper, at a temperature from 20.degree. to 170.degree. C., the operating conditions being so selected as to avoid a substantial oxidation of said mass and said mass being periodically regenerated by heating to 200.degree.-300.degree. C. in the presence of oxygen, the regenerating conditions being such as to avoid a substantial oxidation of the carbon mass.
摘要翻译： 一种纯化含有硫化氢的气体的方法，其中所述气体与氧气混合并与特定表面积高于50m2 / g并且含有至少一种铁和/或铜的氧化物和/或硫酸盐的碳质量块接触， 温度为20℃至170℃，选择操作条件以避免所述物质的实质氧化，并且所述物质通过在氧气存在下加热至200-300℃来定期再生，再生 条件是为了避免碳质量的显着氧化。
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公开(公告)号：US4277458A
公开(公告)日：1981-07-07
申请号：US57464
申请日：1979-07-13
申请人： Andre Sugier , Philippe Courty , Andre Deschamps , Henri Gruhier
发明人： Andre Sugier , Philippe Courty , Andre Deschamps , Henri Gruhier
CPC分类号： C01B17/508 , B01D53/48 , B01J23/682
摘要： A gas containing carbon oxysulfide or carbon disulfide is passed in admixture with oxygen through a catalyst formed of a carrier, vanadium oxide and silver, the proportion of iron oxide, if any, being lower than 1% by weight. The amount of vanadium oxide may be 0.5 to 10% by weight and that of silver 0.05 to 4% by weight.
摘要翻译： 将含有硫氧化碳或二硫化碳的气体与氧气混合通过由载体，氧化钒和银形成的催化剂，氧化铁（如果有的话）的比例低于1重量％。 氧化钒的量可以为0.5〜10重量％，银的量为0.05〜4重量％。
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公开(公告)号：US4048293A
公开(公告)日：1977-09-13
申请号：US671711
申请日：1976-03-29
CPC分类号： B01D53/501 , B01D53/8612 , C01B17/05
摘要： This process for purifying a sulfur dioxide containing gas, for example stack gas, comprises the steps of washing the gas with aqueous ammonia or ammonium sulfite, vaporizing sulfur dioxide and ammonia therefrom, reacting vaporized sulfur dioxide with hydrogen sulfide and recycling an ammonia containing stream. To avoid the drawbacks resulting from the presence of hydrogen sulfide in the recycle stream, a further oxidation step is provided to convert hydrogen sulfide to sulfur dioxide.
摘要翻译： 用于纯化含二氧化硫的气体（例如烟气）的方法包括以下步骤：用氨水或亚硫酸铵洗涤气体，从其中蒸发二氧化硫和氨，使蒸发的二氧化硫与硫化氢反应并再循环含氨气流。 为了避免在循环物流中存在硫化氢导致的缺点，提供了另外的氧化步骤以将硫化氢转化为二氧化硫。
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10.发明授权Process for purifying a sulfur dioxide containing gas by washing with an ammonia aqueous solution 失效通过用氨水洗涤来净化含二氧化硫的气体的方法
公开(公告)号：US4180550A
公开(公告)日：1979-12-25
申请号：US835085
申请日：1977-09-20
CPC分类号： C01B17/60 , B01D53/501
摘要： Process for purifying a sulfur dioxide containing gas, by washing with an ammonia aqueous solution, comprising the following steps:(a) contacting a sulfur dioxide containing gas with ammonia and/or ammonium sulfite in the presence of water, to form a solution containing ammonium bisulfite and/or sulfite;(b) reacting at least a portion of the solution obtained in step (a) with ammonium bisulfate, so as to decompose the ammonium bisulfite and sulfite and to obtain ammonium sulfate as an aqueous solution and gaseous sulfur dioxide;(c) recovering the sulfur dioxide;(d) heating the aqueous solution obtained in step (b) for vaporizing at least a portion of the water;(e) heating the product from step (d) to convert the ammonium sulfate to ammonium bisulfate and gaseous ammonia;(f) separating the gaseous ammonia obtained in step (e) and feeding it to step (a) either as such or as ammonium sulfite and,(g) feeding to step (b) the ammonium bisulfate obtained in step (e) either as such or after dissolution in water, wherein, in order to avoid an accumulation of ammonium sulfate and/or bisulfate, due the undesirable formation of ammonium sulfate, at least a portion of the ammonium sulfate and/or bisulfate from step (e) is heated with a molybdenum and/or tungsten compound for converting a portion of said ammonium sulfate and/or bisulfate to sulfur dioxide and ammonia, which are fed back to step (a).
摘要翻译： 通过用氨水洗涤来净化含二氧化硫气体的方法，包括以下步骤：（a）在水存在下使含二氧化硫的气体与氨和/或亚硫酸铵接触，形成含有铵的溶液 亚硫酸氢盐和/或亚硫酸盐; （b）使步骤（a）中获得的溶液的至少一部分与硫酸氢铵反应，以分解亚硫酸氢铵和亚硫酸盐，得到作为水溶液和气态二氧化硫的硫酸铵; （c）回收二氧化硫; （d）加热步骤（b）中获得的水溶液以使至少一部分水蒸发; （e）加热来自步骤（d）的产物以将硫酸铵转化为硫酸氢铵和气态氨; （f）分离步骤（e）中获得的气态氨，并将其进料到步骤（a）中，或者以亚硫酸铵形式进料到步骤（a），和（g）将步骤（b）中得到的硫酸氢铵 这样或之后溶解在水中，其中为了避免硫酸铵和/或硫酸氢盐的积聚，由于不期望的形成硫酸铵，将来自步骤（e）的至少一部分硫酸铵和/或硫酸氢盐加热 与用于将一部分所述硫酸铵和/或硫酸氢盐转化成二氧化硫和氨的钼和/或钨化合物反馈到步骤（a）。
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