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1. 发明授权

US5229087A Process for the preparation of titanium dioxide 失效
标题翻译：二氧化钛的制备方法
公开(公告)号：US5229087A
公开(公告)日：1993-07-20
申请号：US523107
申请日：1990-05-14
申请人： Karl-Heinz Schultz , Gunter Lailach , Rudolf Gerken
发明人： Karl-Heinz Schultz , Gunter Lailach , Rudolf Gerken
IPC分类号： C01B17/90 , C01G23/053 , C22B34/12
CPC分类号： C01B17/901 , C01G23/0532 , C22B34/125 , C22B34/1259
摘要： A process for the preparation of titanium dioxide by the sulphate process in which titanium raw materials are decomposed with sulphuric acid, the resulting titanyl sulphate is hydrolyzed, the waste acid is separated from the hydrolyzate and evaporated to a concentration of 60 to 70%, sulphuric acid is separated from the solid metal sulphates, and the sulphuric acid which has been concentrated by evaporation is used again for the decomposition of the titanium raw material, the improvement wherein the 60 to 70% sulphuric acid is concentrated to 70 to 80% H.sub.2 SO.sub.4 in a further evaporation stage and the concentration of a part of this sulphuric acid is raised to a concentration of 98 to 99% H.sub.2 SO.sub.4 by the absorption of SO.sub.3 and then used together with the remainder of the above-mentioned 70 to 80% sulphuric acid for the decomposition of titanium raw materials.
摘要翻译：通过硫酸盐工艺制备二氧化钛的方法，其中钛原料用硫酸分解，得到的硫酸氧钛被水解，废酸与水解产物分离并蒸发至60至70％的浓度，硫酸酸与固体金属硫酸盐分离，通过蒸发浓缩的硫酸再次用于钛原料的分解，其中将60-70％硫酸浓缩至70-80％H 2 SO 4的改进进一步蒸发阶段，通过吸收SO 3将该硫酸的一部分浓度提高至98至99％H 2 SO 4的浓度，然后与剩余的上述70-80％硫酸一起用于分解钛原料。

2. 发明授权

US4931269A Process for the purification and reheating of exhaust gases 失效
标题翻译：废气净化和再加热的方法
公开(公告)号：US4931269A
公开(公告)日：1990-06-05
申请号：US262144
申请日：1988-10-21
申请人： Gunter Lailach , Rudolf Gerken
发明人： Gunter Lailach , Rudolf Gerken
IPC分类号： B01D53/34 , B01D53/50 , B01D53/77 , C01B17/60 , C01B17/74 , C01B17/775
CPC分类号： C01B17/60 , B01D53/507 , C01B17/74
摘要： A process for the removal of dust and sulphur dioxide from hot exhaust gases which have a low hydrogen halide content and the reheating of the purified exhaust gases, wherein(a) the hot exhaust gases are cooled to temperatures below 135.degree. C. by scrubbing with sulphuric acid,(b) sulphuric acid containing solids and dissolved metal sulphates is then separated from the exhaust gases from (a),(c) the exhaust gases from (b) are cooled to temperatures of 50.degree. to 70.degree. C. by scrubbing with 15 to 50% sulphuric acid,(d) and desulphurized with the formation of sulphuric acid,(e) and reheated to temperatures of 70.degree. to 90.degree. C. by scrubbing with 50 to 65% sulphuric acid while the sulphuric acid discharged from (c) is concentrated and(f) the sulphuric acid from stage (a) together with the solid particles contained therein is cooled with the pure sulphuric acid from (e) in heat exchangers.The process according to the invention is particularly suitable for the purification of hot exhaust gases which are at a temperature of 170.degree. to 500.degree. C.
摘要翻译：一种从具有低卤化物含量和纯化废气再热的热废气中去除灰尘和二氧化硫的方法，其中（a）将热废气通过以下方式洗涤而被冷却至低于135℃的温度：硫酸，（b）含硫固体和溶解的金属硫酸盐然后从（a），（c）的废气中分离，（b）的废气通过洗涤被冷却至50至70℃的温度用15〜50％的硫酸，（d），硫酸形成硫酸脱硫，（e），再用50〜65％的硫酸洗涤再次加热至70〜90℃，（c）浓缩，（f）来自步骤（a）的硫酸与其中所含的固体颗粒一起用（e）在热交换器中的纯硫酸冷却。根据本发明的方法特别适合于在170℃至500℃的温度下净化热废气。

3. 发明授权

US4824655A Process for the preparation of sulphur dioxide 失效
标题翻译：二氧化硫的制备方法
公开(公告)号：US4824655A
公开(公告)日：1989-04-25
申请号：US097241
申请日：1987-09-15
申请人： Gunter Lailach , Rudolf Gerken
发明人： Gunter Lailach , Rudolf Gerken
IPC分类号： C01B17/50 , C01B17/52 , C01B17/90
CPC分类号： C01B17/507 , C01B17/501 , Y02P20/129
摘要： A process for the preparation of sulphur dioxide by the thermal decomposition of metal sulphates in a fluidized bed reactor with sulphur-containing reducing agents and energy suppliers, characterized in that a mixture comprising the metal sulphates, the sulphur-containing reducing agents and 75 to 99% of the energy suppliers is fed into the fluidized bed reactors and the remainder of the energy suppliers is introduced separately into the fluidized layer of the fluidized bed reactor.
摘要翻译：一种通过在含硫还原剂和能源供应商的流化床反应器中热分解金属硫酸盐来制备二氧化硫的方法，其特征在于包含金属硫酸盐，含硫还原剂和75至99 将能量供应商的百分比进料到流化床反应器中，其余能量供应商分别引入流化床反应器的流化层。

4. 发明授权

US3649170A Process for the production of hydroxylammonium salts 失效
标题翻译：生产羟基钠盐的方法
公开(公告)号：US3649170A
公开(公告)日：1972-03-14
申请号：US3649170D
申请日：1970-01-21
申请人： HEINZ HEINE , RUDOLF GERKEN
发明人： HEINE HEINZ , GERKEN RUDOLF
IPC分类号： B01J23/00 , C01B21/14
CPC分类号： C01B21/1418
摘要： Process for the production of hydroxylammonium salts by reduction of nitric oxide with hydrogen in dilute mineral acid solution in the presence of noble-metal catalysts and modifiers such as formic acid, water-soluble formates, oxalic acid, chloral hydrate or carbon monoxide.
摘要翻译：在贵金属催化剂和改性剂如甲酸，水溶性甲酸盐，草酸，水合氯化物或一氧化碳的存在下，在稀无机酸溶液中用氢还原一氧化氮的方法。

5. 发明授权

US5061472A Process for the concentration of sulphuric acid containing metal sulphates 失效
标题翻译：含硫酸金属硫酸盐浓度的方法
公开(公告)号：US5061472A
公开(公告)日：1991-10-29
申请号：US562094
申请日：1990-08-01
申请人： Gunter Lailach , Rudolf Gerken
发明人： Gunter Lailach , Rudolf Gerken
IPC分类号： C01B17/88 , C01B17/90
CPC分类号： C01B17/901 , Y10S423/02
摘要： A process for the recovery of sulphuric acid from waste acids containing metal sulphates by evaporative concentration and separation of the metal sulphates from the suspension obtained by evaporation, the improvement wherein vapors leaving the evaporators together with droplets of sulphuric acid containing metal sulphates and solid metal sulphates are condensed by direct contact with cooled contaminated vapor condensate, cooling of this vapor condensate which is circulated as cooling medium is carried out in a flash evaporator and the vapors leaving the flash evaporator free from metal sulphates and sulphuric acid are directly or indirectly condensed by means of cooling agent.
摘要翻译：通过蒸发浓缩从金属硫酸盐与通过蒸发获得的悬浮液分离金属硫酸盐，从含有金属硫酸盐的废酸中回收硫酸的方法，其中蒸发器与含有硫酸金属硫酸盐和固体金属硫酸盐的液滴一起蒸发通过与冷却的污染蒸汽冷凝物的直接接触而冷凝，冷却该冷凝物，其作为冷却介质在闪蒸器中进行循环，并且离开闪蒸器的蒸气不含金属硫酸盐和硫酸直接或间接地通过的冷却剂。

6. 发明授权

US4952387A Process for separating metal sulphates from sulphuric acid 失效
标题翻译：从硫酸中分离金属硫酸盐的方法
公开(公告)号：US4952387A
公开(公告)日：1990-08-28
申请号：US218734
申请日：1988-07-13
申请人： Gunter Lailach , Rudolf Gerken , Wolfgang Rens
发明人： Gunter Lailach , Rudolf Gerken , Wolfgang Rens
IPC分类号： C01B17/90 , C22B3/22 , C23G1/36
CPC分类号： C23G1/36 , C01B17/901 , C22B3/22 , Y02P10/234 , Y10S423/02
摘要： A process for the separation of metal sulphates from dilute sulphuric acid by evaporative concentration of the sulphuric acid to a concentration of from 55 to 75% by weight H.sub.2 SO.sub.4, cooling of the resulting solution or suspension and mechanically separating the solid metal sulphates and/or hydrogen sulphates, wherein an Fe(III) content of at least 0.01% by weight is ensured before the separation.
摘要翻译：通过将硫酸蒸发浓缩至55至75重量％H 2 SO 4的浓度从金属硫酸盐与稀硫酸分离的方法，冷却所得溶液或悬浮液并机械分离固体金属硫酸盐和/或氢硫酸盐，其中在分离之前确保至少0.01重量％的Fe（III）含量。

7. 发明授权

US4880446A Process for heating up moist gases containing hydrogen halides 失效
标题翻译：加热含有卤化氢的潮湿气体的方法
公开(公告)号：US4880446A
公开(公告)日：1989-11-14
申请号：US202861
申请日：1988-06-06
申请人： Wolfgang Dietz , Rudolf Gerken , Gunter Lailach , Peter Clasen
发明人： Wolfgang Dietz , Rudolf Gerken , Gunter Lailach , Peter Clasen
IPC分类号： B01D5/00 , B01D53/00 , B01D53/68 , B01D53/77
CPC分类号： B01D53/68 , B01D53/005
摘要： A process for heating up moist gases containing hydrogen halides comprising removing the hydrogen halides from the gases by partial condensation of the water vapor, separating out the condensate and heating up the resultant gas in indirect or recuperative heat exchangers.
摘要翻译：一种用于加热含有卤化氢的潮湿气体的方法，包括通过水蒸汽的部分冷凝从气体中除去卤化氢，分离出冷凝物并在间接或再生热交换器中加热所得气体。

8. 发明授权

US4834954A Process for cleaning flue gases 失效
标题翻译：清洁烟气的工艺
公开(公告)号：US4834954A
公开(公告)日：1989-05-30
申请号：US67658
申请日：1987-06-26
申请人： Karl H. Dorr , Hugo Grimm , Heinz Neumann , Rudolf Gerken , Gunter Lailach
发明人： Karl H. Dorr , Hugo Grimm , Heinz Neumann , Rudolf Gerken , Gunter Lailach
IPC分类号： F23J15/00 , B01D53/34 , B01D53/50 , B01D53/68 , B01D53/77 , F23J15/08
CPC分类号： B01D53/34 , B01D53/507 , B01D53/68 , F23J15/08
摘要： Cleaned flue gases normally accumulate as steam-saturated gases with temperatures of from 40.degree. to 55.degree. C. after wet cleaning processes for the removal of sulfur and/or nitrogen compounds. Before being let off through a stack, however, these gases have to be heated to at least 72.degree. C.This invention relates to a process for reheating flue gases after wet cleaning.
摘要翻译：清洁的烟道气体通常在湿法清洗过程中作为蒸汽饱和气体积聚，温度为40-55℃，以除去硫和/或氮化合物。然而，在通过堆放出之前，这些气体必须被加热到至少72℃。本发明涉及在湿清洗后再加热烟道气的方法。

9. 发明授权

US4670235A Process for desulphurizing flue gases 失效
标题翻译：烟气脱硫工艺
公开(公告)号：US4670235A
公开(公告)日：1987-06-02
申请号：US775201
申请日：1985-09-12
申请人： Gunter Lailach , Rudolf Gerken , Karl-Heinz Schultz
发明人： Gunter Lailach , Rudolf Gerken , Karl-Heinz Schultz
IPC分类号： B01D53/50 , B01D53/68 , B01D53/77 , B01D53/86 , C01B17/775 , B01D53/14 , C01B17/90
CPC分类号： B01D53/68 , B01D53/8609 , C01B17/775
摘要： In the desulphurizing of SO.sub.2 - and hydrogen halide-containing flue gases by catalytically oxidizing the sulphur dioxide on moist active carbon at a temperature of from 45.degree. to 70.degree. C. with the formation of 3 to 20% dilute sulphuric acid, the improvement which comprises contacting the dilute sulphuric acid with the hot flue gases to be desulphurized so as to evaporate water resulting sulphuric acid of a concentration of from 60 to 85%, and removing by evaporation the hydrogen chloride and hydrogen fluoride dissolved in the dilute sulphuric acid. Advantageously evaporation is carried out in two scrubbing stages, the hydrogen chloride and hydrogen fluoride being removed, by vacuum evaporation or by stripping with air or flue gas, from a mixture of the dilute sulphuric acid from the second scrubbing stage with the concentrated sulphuric acid from the first scrubbing stage, the mixture having the H.sub.2 SO.sub.4 concentration of from 40 to 70%.
摘要翻译：在SO2-和含卤化氢的烟道气的脱硫中，通过在温度为45〜70℃的温度下在湿活性炭上催化氧化二氧化硫，形成3〜20％的稀硫酸，包括使稀硫酸与待脱硫的热烟道气接触，以使水蒸发得到浓度为60至85％的硫酸，并通过蒸发除去溶解在稀硫酸中的氯化氢和氟化氢。有利地，在两个洗涤阶段进行蒸发，通过真空蒸发或通过空气或烟道气从第二洗涤阶段的稀硫酸的混合物中除去氯化氢和氟化氢，使浓硫酸从第一次洗涤阶段，该混合物的H 2 SO 4浓度为40-70％。

10. 发明授权

US4163047A Process for producing sulfuric acid from waste acid and iron sulfate 失效
标题翻译：从废酸和硫酸铁生产硫酸的方法
公开(公告)号：US4163047A
公开(公告)日：1979-07-31
申请号：US811798
申请日：1977-06-30
申请人： Karl-Heinz Dorr , Georg Daradimos , Hugo Grimm , Georg Schmidt , Rudolf Gerken , Christoph Mucke , Hermann Wieschen
发明人： Karl-Heinz Dorr , Georg Daradimos , Hugo Grimm , Georg Schmidt , Rudolf Gerken , Christoph Mucke , Hermann Wieschen
IPC分类号： C01G49/14 , C01B17/50 , C01B17/74 , C01B17/90 , C01G49/02 , C01G23/00
CPC分类号： C01B17/901 , Y10S423/02
摘要： A process for the recovery of sulfuric acid from waste sulfuric acid containing iron sulfate and from solid iron sulfate of high water content of crystallization which consists essentially of:A. concentrating waste sulfuric acid to an acid concentration of 25-55 weight percent, based upon the suspension, by removing water therefrom;B. mixing the concentrated acid of Step A with recycled concentrated sulfuric acid obtained from Step E to form a resultant acid mixture of acid concentration of 30-65 weight percent, based upon the suspension;C. adding said solid iron sulfate of high water content of crystallization to the acid mixture of Step B thereby obtaining iron sulfate of low water content of crystallization;D. separating the iron sulfate of low water content from the resultant sulfuric acid solution of Step C;E. concentrating the separated sulfuric acid solution of Step D to an acid concentration of 45-70 weight percent, based on salt-free acid, and recycling at least a portion thereof to Step B; andF. thermally decomposing the iron sulfate from Step D to produce iron oxide and sulfur dioxide.
摘要翻译：一种从含硫酸铁的废硫酸和硫酸高固含量的硫酸中回收硫酸的方法，该方法主要包括：

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