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    • 31. 发明授权
      US4632819A Process for removing hydrogen sulfide from exhaust gas and for producing sulfur by the Claus process 失效
    • Process for removing hydrogen sulfide from exhaust gas and for producing sulfur by the Claus process
    • 从废气中除去硫化氢并通过克劳斯法生产硫的方法
    • US4632819A
    • 1986-12-30
    • US726594
    • 1985-04-23
    • Herbert Fischer , Manfred Kriebel
    • Herbert Fischer , Manfred Kriebel
    • B01D53/52 , B01D53/86 , C01B17/04 , B01D53/36
    • B01D53/8612 , B01D53/52 , C01B17/0404 , C01B17/0413
    • The feed gas is partially burnt with oxygen-containing gas in a thermal Claus process plant, in which temperatures in the range of 850.degree. to 1350.degree. C. is maintained. Product gas which has been produced is passed through a catalytic Claus process plant (Claus catalysis plant), from which sulfur is withdrawn. The exhaust gas from the Claus catalysis plant is supplied to a desulfurizing plant. The sulfur compounds in the exhaust gas of the desulfurizing plant are converted to SO.sub.2 in a thermal aftertreating unit. When the rate of the H.sub.2 S-containing feed gas is below a limit, which is between 20 to 35% of the total rate of feed gas permissible for the thermal Claus process plant, then recycled exhaust gas from the desulfurizing plant (recycle gas) is admixed to the feed gas at such a rate that the rate of the mixed feed and recycle gases exceeds that limit. The recycle gas is suitably heated to 200.degree. to 400.degree. C. before it is mixed with the feed gas.
    • 在克劳斯工艺装置中，含氧气体部分燃烧进料气体，其中维持在850℃至1350℃范围内的温度。 已经生产的产物气体通过催化Claus工艺装置（Claus催化装置），从中抽出硫。 将来自Claus催化装置的废气供应给脱硫装置。 脱硫装置废气中的硫化合物在热处理装置中转化为SO2。 当含H2S的进料气体的速率低于热克劳斯工厂所允许的总进料气体总量的20％至35％之间的限度时，来自脱硫设备的再循环废气（再循环气体）为 以使得混合进料和再循环气体的速率超过该限度的速率与进料气体混合。 再循环气体在与进料气体混合之前适当地加热到200-400℃。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 32. 发明授权
      US4405593A Process of decreasing the sulfur content of exhaust gases obtained during the recovery of sulfur 失效
    • Process of decreasing the sulfur content of exhaust gases obtained during the recovery of sulfur
    • 在硫回收过程中获得的废气中硫含量降低的过程
    • US4405593A
    • 1983-09-20
    • US302885
    • 1981-09-16
    • Johann Schlauer , Herbert Fischer , Manfred Kriebel
    • Johann Schlauer , Herbert Fischer , Manfred Kriebel
    • B01D53/48 , B01D53/50 , B01D53/52 , B01D53/77 , C01B17/04
    • B01D53/52 , C01B17/0404 , C01B17/0452 , C01B17/0456
    • In a process of decreasing the sulfur content of exhaust gases obtained during the recovery of sulfur from acid gases containing H.sub.2 S and other S-containing compounds in the Claus process, the acid gases which contain H.sub.2 S and other S-containing compounds are reacted in a Claus plant to form elemental sulfur. A gas which contains H.sub.2 S or SO.sub.2 is subsequently added at a controlled rate to maintain a stoichiometric ratio of 2:1 of H.sub.2 S to SO.sub.2 in the tail gas from the Claus plant. The gas which contains H.sub.2 S or SO.sub.2 may be added to the tail gas from the Claus plant or before the last contacting stage of a multistage Claus plant. During the addition of a gas which contains H.sub.2 S, the Claus plant can be operated at an H.sub.2 S to SO.sub.2 ratio of or below 2:1. During the addition of a gas which contains SO.sub.2 the Claus plant can be operated at an H.sub.2 S to SO.sub.2 ratio of or above 2:1. The H.sub.2 S and SO.sub.2 contained in the tail gas are chemically reacted to form elementary sulfur in a tail gas-desulfurizing plant and the sulfur is withdrawn.
    • 在克劳斯工艺中，在从含有H 2 S和其它含S化合物的酸性气体中回收硫期间获得的废气硫含量降低的过程中，含有H 2 S和其它含S化合物的酸性气体在克劳斯 植物形成元素硫。 随后以受控的速率加入含有H 2 S或SO 2的气体，以保持来自克劳斯工厂的尾气中H2S与SO2的化学计量比为2:1。 含有H 2 S或SO 2的气体可以从克劳斯植物的尾气加入到多级克劳斯植物的最后接触阶段之前。 在加入含有H 2 S的气体期间，Claus装置可以以等于或低于2:1的H 2 S至SO 2比来操作。 在加入含有SO 2的气体时，克劳斯植物可以以等于或大于2:1的H 2 S至SO 2比率操作。 尾气中所含的H2S和SO2在尾气脱硫装置中进行化学反应形成元素硫，并将硫取出。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 33. 发明授权
      US4376120A Therapeutic compositions with a cytostatic action containing isocyanuric acid derivatives and process of manufacture 失效
    • Therapeutic compositions with a cytostatic action containing isocyanuric acid derivatives and process of manufacture
    • 含有异氰脲酸衍生物的细胞生长抑制作用的治疗组合物及其制造方法
    • US4376120A
    • 1983-03-08
    • US289392
    • 1981-08-03
    • Ulrich Zeidler , Herbert Fischer , Brigitte Hase , Hinrich Moller , Hans-Christoph Wilk
    • Ulrich Zeidler , Herbert Fischer , Brigitte Hase , Hinrich Moller , Hans-Christoph Wilk
    • C07D251/34 , A61K31/53
    • C07D251/34
    • New cytostatic compounds based on isocyanuric acid derivatives having 2 or 3 epoxide group containing substituents on ring nitrogen atoms, of which at least one differs from a glycidyl, having the formula ##STR1## wherein Oxiranyl is the same or different and has the formula ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and members selected from the group consisting of hydrogen, alkyl, haloalkyl, hydroxyalkyl and alkoxyalkyl and n in an integer from 1 to 8, with the proviso that if n is 1 in all oxiranyl groups, at least one of R.sub.1 or R.sub.3 is other than hydrogen, and R is a member selected from the group consisting of oxiranyl as defined above, hydrogen, alkyl, alkenyl, hydrocarbon aryl, hydrocarbon aralkyl, hydrocarbon alkaryl, cycloalkyl, and cycloalkenyl, optionally containing substituents.When R.sub.1, R.sub.2 and/or R.sub.3 denote alkyl or substituted alkyl in the oxiranyl radical, the alkyl radicals preferably have from 1 to 4 carbon atoms. The total number of carbon atoms in one oxiranyl radical should not be more than 10. The preparation of these compounds by introducing oxiranyl groups of Formula II and the radical R in known manner into the isocyanuric acid ring is also claimed.
    • 基于在环氮原子上具有2或3个环氧基团的取代基的异氰脲酸衍生物的新的细胞抑制化合物，其中至少一个不同于缩水甘油基，其具有式（VII），其中环氧乙烷基相同或不同，具有式IMA图 其中R 1，R 2和R 3相同或不同，并且选自氢，烷基，卤代烷基，羟基烷基和烷氧基烷基和n在1至8的整数中的成员，条件是如果在所有环氧乙烷基中n为1 基团，R 1或R 3中的至少一个不是氢，R是选自如上定义的环氧乙烷，氢，烷基，烯基，烃芳基，烃芳烷基，烃烷芳基，环烷基和环烯基的成员， 任选地含有取代基。 当R1，R2和/或R3表示环氧乙烷基中的烷基或取代的烷基时，烷基优选具有1至4个碳原子。 一个环氧乙烷基中碳原子的总数不应大于10.通过将式II的环氧乙烷基和已知方式的基团R引入到异氰脲酸环中，这些化合物的制备也被要求保护。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 34. 发明授权
      US4097585A Production of sulfur from Claus process waste gas 失效
    • Production of sulfur from Claus process waste gas
    • 从Claus工艺废气生产硫
    • US4097585A
    • 1978-06-27
    • US836464
    • 1977-09-26
    • Herbert Fischer
    • Herbert Fischer
    • B01D53/50 , B01D53/52 , B01D53/77 , C01B17/04
    • C01B17/0456 , Y02P20/584
    • In the Claus process wherein hydrogen sulfide and sulfur dioxide are reacted to form sulfur and a waste exhaust gas, the invention treats the exhaust gas to recover additional sulfur therefrom. This is done by (a) catalytically hydrogenating the exhaust gas with a hydrogen containing gas to form hydrogen sulfide from the sulfur and residual sulfur in such exhaust gas; (b) simultaneously with step (a) catalytically hydrolyzing the carbon oxysulfide and carbon disulfide contained in the exhaust gas with steam to form hydrogen sulfide; (c) oxidizing part of at least one of the hydrogen sulfide contained in the initial feed gas and the ultimate sulfur product with air in stoichiometric or slightly less amount to form sulfur dioxide; (d) adding the sulfur dioxide produced in step (c) to the hydrogen sulfide-containing exhaust gas which has been subjected to steps (a) and (b) in an amount to establish a ratio of hydrogen sulfide to sulfur dioxide of about 2 : 1; (e) catalytically reacting the hydrogen sulfide still contained in the exhaust gas after step (d) with sulfur dioxide at about 100.degree. to 150.degree. C to form sulfur, and recovering the sulfur; and (f) regenerating the catalyst with an oxygen-free hot gas containing hydrogen sulfide.
    • 在其中使硫化氢和二氧化硫反应形成硫和废废气的Claus方法中，本发明处理废气以从其中回收额外的硫。 这是通过（A）用含氢气体将排气从硫酸和残留硫在这种排气中形成硫化氢进行催化加氢完成的; （B）同时步骤（A）催化水解含有蒸气的废气中的碳氧化物和碳氢化合物形成硫化氢; （C）将初始进料气体中含有的氢硫化物的一部分氧化成一体，将最终硫化物的最终硫化物的产物在低于或等于少量的空气中氧化成二氧化硫; （D）将步骤（C）中生产的二氧化硫加到含有硫含量的排放气体（A）和（B）的氢气中，以确定硫化氢与二氧化硫的比例 ：
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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