专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06500402B1 Catalyst for oxidizing SO2 to SO3 and utilization of the catalyst in a method for producing sulfuric acid 失效
标题翻译：在硫酸生产方法中氧化SO2至SO3的催化剂和催化剂的利用
公开(公告)号：US06500402B1
公开(公告)日：2002-12-31
申请号：US09600332
申请日：2000-10-12
申请人： Egon Winkler , Georg Schmidt , Achim Hollnagel , Dietrich Werner , Nikola Anastasijevic , Franz-Ferdinand Schüth , Anette Wingen
发明人： Egon Winkler , Georg Schmidt , Achim Hollnagel , Dietrich Werner , Nikola Anastasijevic , Franz-Ferdinand Schüth , Anette Wingen
IPC分类号： C01B1769
CPC分类号： B01J35/10 , B01J21/08 , B01J23/745 , B01J35/1019 , B01J35/1028 , C01B17/78
摘要： A catalyst for reacting SO2 with molecular oxygen to form SO3 is suited for a continuous operation at temperatures of 700° C. and above, when the same consists of a carrier and an active component connected with the carrier, the active component consists of 10 to 80 wt-% iron, the carrier has a BET surface of 100 to 2000 m2/g and an SiO2 content of at least 90 wt-%, and the weight ratio carrier:active component is 1:1 to 100:1.
摘要翻译：用于使SO 2与分子氧反应形成SO 3的催化剂适用于在700℃及以上的温度下的连续操作，当载体和与载体连接的活性组分相同时，活性组分由10至 80重量％的铁，载体的BET表面为100〜2000m 2 / g，SiO 2含量为90重量％以上，载体：活性成分的重量比为1:1〜100:1。

2. 发明授权

US06279514B1 Method of recovering heat in sulfuric acid production plant 失效
标题翻译：在硫酸生产厂回收热量的方法
公开(公告)号：US06279514B1
公开(公告)日：2001-08-28
申请号：US09634883
申请日：2000-08-07
申请人： Timothy J. Browder , Todd W. Browder , Dora J. Browder , Yoichi Yokoyama , Yozo Nakamura , Takeshi Katagiri
发明人： Timothy J. Browder , Todd W. Browder , Dora J. Browder , Yoichi Yokoyama , Yozo Nakamura , Takeshi Katagiri
IPC分类号： C01B1769
CPC分类号： C01B17/76 , Y02P20/124
摘要： The invention provides a heat recovery method for use in sulfuric acid production plants by which the heat generated in the step of drying SO2 gas or the step of drying air, and the step of absorbing sulfur trioxide in the plant is effectively utilized for heating the water to be supplied to a boiler although the heat is conventionally discarded because of the difficulties encountered in using the heat effectively. The boiler water to be supplied is heated by utilizing the heat generated by drying and/or absorption in a drying tower of the plant for drying sulfur burning air or the sulfur dioxide and/or in an absorption tower of the plant for causing circulating concentrated sulfuric acid to absorb sulfur trioxide produced by the conversion of the sulfur dioxide.
摘要翻译：本发明提供一种在硫酸生产设备中使用的热回收方法，通过该方法，在干燥SO 2气体的步骤中产生的热量或干燥空气的步骤，以及在工厂中吸收三氧化硫的步骤被有效地用于加热水由于在有效使用热量方面遇到困难，所以常规地放弃了热量供给到锅炉。要供应的锅炉水通过在工厂的干燥塔中干燥和/或吸收产生的热量加热，用于干燥硫燃烧空气或二氧化硫和/或在设备的吸收塔中，以产生循环浓硫酸酸吸收通过二氧化硫转化产生的三氧化硫。

3. 发明授权

US06572835B1 Method and apparatus for producing gaseous sulfur trioxide 失效
标题翻译：生产气态三氧化硫的方法和装置
公开(公告)号：US06572835B1
公开(公告)日：2003-06-03
申请号：US08786756
申请日：1997-01-24
申请人： Brian W. MacArthur , Walter A. Jessup , John C. Chittenden
发明人： Brian W. MacArthur , Walter A. Jessup , John C. Chittenden
IPC分类号： C01B1769
CPC分类号： C01B17/76 , C01B17/80
摘要： An apparatus and method for producing sulfur comprises a vessel containing a plurality of spaced-apart channels each having an upstream end communicating with an upstream manifold and a downstream end communicating with a downstream manifold. Each channel comprises a single, continuous, uninterrupted conversion stage terminating at the downstream channel end. A first mixture, of SO2 and air from the sulfur burner, is introduced into the upstream manifold and flows as a stream through each of the channels where the stream is cooled and the SO2 is converted in the conversion stage to SO3 to produce, at the downstream channel end, a second mixture consisting essentially of SO3 and air. The first mixture is not cooled between the sulfur burner and the converter. The stream flowing through the conversion stage is maintained at a temperature which sustains conversion of SO2 to SO3, without diluting the stream with a cooling fluid or diverting the stream outside the channel contained in the converter vessel.
摘要翻译：用于生产硫的设备和方法包括容器，其容纳多个间隔开的通道，每个通道具有与上游歧管连通的上游端和与下游歧管连通的下游端。每个通道包括在下游通道端终止的单个连续的不间断转换级。将来自硫燃烧器的SO 2和空气的第一混合物引入上游歧管中，并以流通过每个通道流动，其中流被冷却并且SO 2在转化阶段转化为SO 3以在下游通道末端，基本上由SO 3和空气组成的第二混合物。第一混合物在硫燃烧器和转炉之间没有冷却。流过转化级的流保持在维持SO 2转化为SO 3的温度，而不用冷却流体稀释流或将流转移到包含在转化器容器中的通道外。

4. 发明授权

US06548038B1 Process for the concentration of dilute sulphuric acid solutions 失效
标题翻译：稀硫酸溶液浓缩过程
公开(公告)号：US06548038B1
公开(公告)日：2003-04-15
申请号：US09744699
申请日：2001-01-29
申请人： James Henry Bush
发明人： James Henry Bush
IPC分类号： C01B1769
CPC分类号： C01B17/88 , Y02P20/129 , Y10S423/02
摘要： A process is provided for increasing the concentration of sulfuric acid in a waste solution of sulfuric acid previously used to produce titanium dioxide. The waste solution of sulfuric acid is fed into a first heat exchanger/evaporator stage that operates at a sulfuric acid concentration of less than 30%. A portion of the solution discharged from the first heat exchanger/evaporator is fed into a heat exchanger/evaporator that uses waste heat and operates at a sulfuric acid concentration that is greater than 40%, while the remainder of the solution discharged from the first heat exchanger/evaporator and the solution discharged from the heat exchanger/evaporator using waste heat is fed into a second heat exchanger/evaporator that operates at a sulfuric acid concentration that is greater than 50%.
摘要翻译：提供了用于提高先前用于生产二氧化钛的硫酸废溶液中的硫酸浓度的方法。将硫酸的废溶液进料到硫酸浓度小于30％的第一个热交换器/蒸发器阶段。从第一热交换器/蒸发器排出的溶液的一部分被供给到使用废热的热交换器/蒸发器中，并且以大于40％的硫酸浓度操作，而从第一热量排出的剩余溶液交换器/蒸发器，并且使用废热从热交换器/蒸发器排出的溶液被供给到在大于50％的硫酸浓度下操作的第二热交换器/蒸发器中。

5. 发明授权

US06174510B1 Multi-pass cocurrent flow sulfuric acid tower process 有权
标题翻译：多级并流流量硫酸塔工艺
公开(公告)号：US06174510B1
公开(公告)日：2001-01-16
申请号：US09383427
申请日：1999-08-27
申请人： Marcos D. Riano
发明人： Marcos D. Riano
IPC分类号： C01B1769
CPC分类号： C01B17/76 , C01B17/90
摘要： A process for the absorbing of a hot, dry gas stream of sulfur trioxide (SO3) in a stream of strong sulfuric acid. The process includes the steps of passing the hot, dry gas stream of SO3 into a sulfuric acid absorption tower above a packed bed held within the tower and below a liquid collection floor. A stream of strong sulfuric acid is introduced into the tower above the packed bed and allowed to pass cocurrently downwardly through the packed bed with the stream of SO3, thereby allowing the SO3 to be absorbed in the stream of strong sulfuric acid. The resulting concentrated sulfuric acid passes through a packing support into a lower plenum and the spent gas is fed upwardly through a gas conduit to an upper plenum located above the liquid collection floor and from there through a mist eliminator.
摘要翻译：一种在强硫酸流中吸收三氧化硫（SO3）的热的干燥气流的方法。该方法包括以下步骤：将热的干燥气流SO 3送入位于塔内的填充床上方的硫酸吸收塔中并在液体收集层下面。将强硫酸流引入填充床上方的塔中，并使其与SO 3流并流地向下通过填充床，由此允许SO 3被吸收在强硫酸流中。所得到的浓硫酸通过填料支撑件进入下部通风室，废气通过气体导管向上输送到位于液体收集地板上方的上部压力室，并从那里通过除雾器。

6. 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。

7. 发明授权

US06521200B1 Catalyst and process for oxidation of sulphur dioxide 失效
标题翻译：用于氧化二氧化硫的催化剂和方法
公开(公告)号：US06521200B1
公开(公告)日：2003-02-18
申请号：US09674907
申请日：2000-11-07
申请人： Peter Lewis Silveston , Robert Ross Hudgins , Radu Valentin Vladea
发明人： Peter Lewis Silveston , Robert Ross Hudgins , Radu Valentin Vladea
IPC分类号： C01B1769
CPC分类号： B01J21/18 , C01B17/775 , Y02P20/544 , Y10S502/517
摘要： A process for the recovery of sulphur trioxide, solutions of sulphuric acid, or organic derivatives thereof, using organic compounds and/or supercritical fluids, and catalyst. The process comprises the steps of passing a mixture of SO2 and an oxygen-containing gas over an activated carbon catalyst at a temperature of at least 15° C. and preferably at a pressure of 1-200 atmospheres, and stripping the activated carbon with either (i) a liquid organic compound selected from the group consisting of ketones, ethers, decalin, tetrahydrofurans, sulpholanes, glymes and formamides and which is non-reactive with sulphur trioxide or sulphuric acid, or (ii) a liquid organic compound capable of forming organic sulphates or sulphonates by reaction with sulphur trioxide or sulphuric acid. The process may be used to obtain sulphuric acid, or organic sulphates or sulphonates.
摘要翻译：使用有机化合物和/或超临界流体和催化剂回收三氧化硫，硫酸或其有机衍生物的方法。该方法包括以下步骤：在至少15℃，优选1-200大气压的压力下，将SO 2和含氧气体的混合物在活性炭催化剂上通过，并用（i）选自酮，醚，十氢化萘，四氢呋喃，磺胺，甘氨酸和甲酰胺的液体有机化合物，其与三氧化硫或硫酸不反应，或（ii）能够形成的液体有机化合物有机硫酸盐或磺酸盐与三氧化硫或硫酸反应。该方法可用于获得硫酸或有机硫酸盐或磺酸盐。

8. 发明授权

US06287534B1 Method for manufacturing sulfuric acid 失效
标题翻译：硫酸制造方法
公开(公告)号：US06287534B1
公开(公告)日：2001-09-11
申请号：US09078128
申请日：1998-05-13
申请人： Ping Wha Lin
发明人： Ping Wha Lin
IPC分类号： C01B1769
CPC分类号： C01B17/74
摘要： A method for accelerating the rate of chemical reactions is disclosed consisting of subjecting a gas stream from a flue stream, industrial source, or utility boiler to a high time rate of change of temperature increase so as to convert certain polyatomic components of the gas stream to desired product, separating these oxidized polyatomic molecules from the gas stream, and subjecting the remaining polyatomic molecules to a high time rate of change of temperature decrease to convert the second type of polyatomic molecule to desired product.
摘要翻译：公开了一种用于加速化学反应速率的方法，其包括将来自烟道气流，工业源或公用事业锅炉的气流以高时间的升温速率进行，以将气流的某些多原子组分转化为将这些氧化的多原子分子与气流分离，并使剩余的多原子分子经历高的时间温度变化速率降低，以将第二类型的多原子分子转化为所需产物。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式