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1. 发明授权

US06740302B2 Method for producing high-purity sulphuric acid 有权
标题翻译：生产高纯度硫酸的方法
公开(公告)号：US06740302B2
公开(公告)日：2004-05-25
申请号：US10168869
申请日：2002-06-26
申请人： Martin Hostalek , Werner Büttner , Rolf Hafner , Chih-Peng Lu , Ching-Jung Kan , Ekkehart Seitz , Ernst Friedel
发明人： Martin Hostalek , Werner Büttner , Rolf Hafner , Chih-Peng Lu , Ching-Jung Kan , Ekkehart Seitz , Ernst Friedel
IPC分类号： C01B1769
CPC分类号： C01B17/69 , C01B17/90 , C01P2006/80
摘要： The invention relates to a novel method for producing high-purity sulfuric acid for use in the semiconductor industry. The method comprises the addition of a hydrogen peroxide solution to an engineered oelum in order to reduce the SO2 concentration, evaporation of the SO3 and separation of acid traces. The high-purity SO3 is then enriched with inert gas and the SO3 is absorbed into sulfuric acid.
摘要翻译：本发明涉及一种生产用于半导体工业的高纯度硫酸的新方法。该方法包括向工程化的oelum中加入过氧化氢溶液以便降低SO 2浓度，SO 3的蒸发和酸痕迹的分离。然后，高纯SO3富含惰性气体，SO3被吸收到硫酸中。

2. 发明授权

US6153168A Method of manufacturing sulphuric acid 有权
标题翻译：制造硫酸的方法
公开(公告)号：US6153168A
公开(公告)日：2000-11-28
申请号：US214776
申请日：1999-01-08
申请人： Ekkehart Seitz , Hermann Muller , Georg Schmidt
发明人： Ekkehart Seitz , Hermann Muller , Georg Schmidt
IPC分类号： C01B17/775 , C01B17/74
CPC分类号： C01B17/775
摘要： A process is provided for manufacturing sulfuric acid from a gas containing sulfur dioxide and steam. The sulfur dioxide and steam containing gas is subjected to a catalytic oxidation to convert the sulfur dioxide into sulfur trioxide so as to produce a gas having a sulfur trioxide to steam mole ratio of at least 1:1 at a temperature of 400 to 600.degree. C. This sulfur trioxide and steam containing gas is injected into an indirect heat exchanger where it is indirectly cooled with a cooling fluid so that at least 80 percent of the theoretically possible sulfuric acid is formed and condensed in this heat exchanger. The cooling fluid exiting the heat exchanger is fed into a turbine for the generation of electricity. The gas mixture exiting the heat exchanger is contacted with sulfuric acid in a separate contact vessel to form additional, concentrated sulfuric acid. The sulfuric acid formed in the heat exchanger is discharged.
摘要翻译： PCT No.PCT / EP97 / 03520 Sec。 371日期1999年1月8日第 102（e）1999年2月5日PCT PCT 1997年7月3日PCT公布。公开号WO98 / 02380 日期1998年1月22日提供了从含有二氧化硫和蒸汽的气体制造硫酸的方法。对二氧化硫和含蒸气的气体进行催化氧化，将二氧化硫转化为三氧化硫，以在400〜600℃的温度下生成三氧化硫至蒸汽摩尔比至少为1:1的气体将这种三氧化硫和含蒸气的气体注入到间接热交换器中，在间接热交换器中用冷却流体间接冷却，使得至少80％的理论上可能的硫酸在该热交换器中形成和冷凝。离开热交换器的冷却流体被供给到用于发电的涡轮机中。离开热交换器的气体混合物在单独的接触容器中与硫酸接触以形成另外的浓硫酸。在热交换器中形成的硫酸被排出。

3. 发明申请

US20060245997A1 Process and plant for the manufacture of sulphuric acid from gases rich in sulphur dioxide 有权
标题翻译：用于从富含二氧化硫的气体制造硫酸的工艺和设备
公开(公告)号：US20060245997A1
公开(公告)日：2006-11-02
申请号：US10532326
申请日：2003-10-21
申请人： Karl-Heinz Daum , Ekkehart Seitz , Hermann Muller , Nikola Anastasijevic
发明人： Karl-Heinz Daum , Ekkehart Seitz , Hermann Muller , Nikola Anastasijevic
IPC分类号： C01B17/69 , B01J8/04 , B01J10/00
CPC分类号： C01B17/7655
摘要： The present invention is concerned with a process and a plant for the production of sulphuric acid wherein a sulphur dioxide-containing feed gas is converted, at least in part, with oxygen in at least two contact stages of main contacts arranged in series, to generate sulphur trioxide, and wherein generated sulphur trioxide-containing gas is conducted to an absorber and converted therein to sulphuric acid. In order to be able to economically process feed gases of a sulphur dioxide content of between 13 and 66% by volume to sulphuric acid, using conventional catalysts, it is suggested to withdraw from a contact stage connected upstream of the last main contact stage, a partial stream of the sulphur dioxide- and sulphur trioxide-containing gas, to mix the said partial stream with the feed gas to generate a contact gas of a sulphur dioxide content of more than 13% by volume, and to return the same to the first contact stage.
摘要翻译：本发明涉及用于生产硫酸的方法和设备，其中含二氧化硫的进料气体至少部分地通过在串联布置的主触头的至少两个接触级中的氧转化而产生三氧化硫，并且其中产生的含三氧化硫的气体被引导到吸收器并在其中转化成硫酸。为了能够使用常规的催化剂经济地处理13至66体积％的二氧化硫含量的进料气体与硫酸的反应，建议从在最后一个主要接触阶段上游连接的接触阶段退出，含有二氧化硫和三氧化硫的气体的部分流，以将所述部分流与进料气体混合以产生二氧化硫含量大于13体积％的接触气体，并将其返回到第一接触阶段

4. 发明授权

US07691360B2 Process and plant for the manufacture of sulphuric acid from gases rich in sulphur dioxide 有权
标题翻译：用于从富含二氧化硫的气体制造硫酸的工艺和设备
公开(公告)号：US07691360B2
公开(公告)日：2010-04-06
申请号：US10532326
申请日：2003-10-21
申请人： Karl-Heinz Daum , Ekkehart Seitz , Hermann Müller , Nikola Anastasijevic
发明人： Karl-Heinz Daum , Ekkehart Seitz , Hermann Müller , Nikola Anastasijevic
IPC分类号： C01B17/69 , C01B17/74
CPC分类号： C01B17/7655
摘要： The present invention is concerned with a process and a plant for the production of sulphuric acid wherein a sulphur dioxide-containing feed gas is converted, at least in part, with oxygen in at least two contact stages of main contacts arranged in series, to generate sulphur trioxide, and wherein generated sulphur trioxide-containing gas is conducted to an absorber and converted therein to sulphuric acid. In order to be able to economically process feed gases of a sulphur dioxide content of between 13 and 66% by volume to sulphuric acid, using conventional catalysts, it is suggested to withdraw from a contact stage connected upstream of the last main contact stage, a partial stream of the sulphur dioxide- and sulphur trioxide-containing gas, to mix the said partial stream with the feed gas to generate a contact gas of a sulphur dioxide content of more than 13% by volume, and to return the same to the first contact stage.
摘要翻译：本发明涉及用于生产硫酸的方法和设备，其中含二氧化硫的进料气体至少部分地通过在串联布置的主触头的至少两个接触级中的氧转化而产生三氧化硫，并且其中产生的含三氧化硫的气体被引导到吸收器并在其中转化成硫酸。为了能够使用常规的催化剂经济地处理13至66体积％的二氧化硫含量的进料气体与硫酸的反应，建议从在最后一个主要接触阶段上游连接的接触阶段退出，含有二氧化硫和三氧化硫的气体的部分流，以将所述部分流与进料气体混合以产生二氧化硫含量大于13体积％的接触气体，并将其返回到第一接触阶段

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