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公开(公告)号：US6114576A
公开(公告)日：2000-09-05
申请号：US215734
申请日：1998-12-18
CPC分类号： C07C51/12
摘要： A process for the production of a carboxylic acid in the presence of solid catalyst particles that uses the exothermic heat of reaction with high efficiency in recovering the carboxylic acid product is disclosed. This process uses indirect heat exchange to transfer the heat of reaction to another stream, without the need for an additional heat transfer fluid such as steam. This invention is especially applicable to the production of acetic acid.
摘要翻译： 公开了一种在固体催化剂颗粒存在下生产羧酸的方法，该方法使用反应的放热热回收羧酸产物，其效率高。 该方法使用间接热交换将反应热转移到另一种流，而不需要额外的传热流体，例如蒸汽。 本发明特别适用于生产乙酸。
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公开(公告)号：US6153792A
公开(公告)日：2000-11-28
申请号：US216399
申请日：1998-12-18
CPC分类号： C07C51/12
摘要： A process for the production of a carboxylic acid in the presence of solid catalyst particles that employs a flash step with a liquid wash is disclosed. This process helps prevent the buildup of deposits of solid catalyst particles, attrited solid catalyst particles, and heavy by-products in the flash zone. This invention is useful for the production of carboxylic acids, especially acetic acid.
摘要翻译： 公开了在使用具有液体冲洗的闪蒸步骤的固体催化剂颗粒存在下制备羧酸的方法。 该过程有助于防止在闪蒸区域中固体催化剂颗粒，磨碎的固体催化剂颗粒和重的副产物沉积物的积聚。 本发明可用于生产羧酸，特别是乙酸。
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3.发明授权Combination pretreatment/adsorption for treating a liquid stream contaminated with an iodine-containing compound 失效用于处理受含碘化合物污染的液态物流的组合预处理/吸附公开(公告)号：US06506935B1
公开(公告)日：2003-01-14
申请号：US09905454
申请日：2001-07-13
IPC分类号： C07C5142
摘要： For the removal of trace quantities of iodine-containing contaminants from corrosive liquid feed streams (e.g. commercial acetic acid), an adsorbent with distinct advantages over prior-art materials is provided. The overall treatment method involves the use of a suitable zeolite having a silica to alumina molar ratio from about 5 to less than 15 that has been cation-exchanged with an iodine-reactive metal. This inorganic adsorbent may be used in unbound form, or it can be bound with a substantially insoluble porous inorganic refractory metal oxide binder. Reactivation and regeneration techniques, which are generally incompatible with prior-art adsorbent materials, are also disclosed. In general, it is advantageous to pretreat the feed streams to remove the most easily separable contaminants (e.g. iodine, hydrogen iodide, and metal cations) and thereby reduce the iodine compound loading and detrimental effects of metals on the adsorbent. Thus, the expensive iodine reactive metal (e.g. silver) used in the adsorbent preparation is judiciously used for the removal of trace quantities of iodine-containing species (e.g. alkyl iodides) that are not readily separable by other means.
摘要翻译： 为了从腐蚀性液体进料流（例如商业乙酸）中除去痕量的含碘污染物，提供了与现有技术材料相比具有明显优点的吸附剂。 总体处理方法包括使用与碘反应性金属进行阳离子交换的具有约5至小于15的二氧化硅与氧化铝摩尔比的合适的沸石。 该无机吸附剂可以以未结合的形式使用，也可以与基本上不溶的多孔无机难熔金属氧化物粘合剂结合。 还公开了通常与现有技术吸附材料不相容的再活化和再生技术。 通常，有利的是预处理进料流以除去最容易分离的污染物（例如碘，碘化氢和金属阳离子），从而降低碘化合物的负载量和金属对吸附剂的不利影响。 因此，在吸附剂制备中使用的昂贵的碘反应性金属（例如银）被明智地用于除去不易通过其它方法分离的痕量的含碘物质（例如烷基碘化物）。
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4.发明授权
公开(公告)号：US5962735A
公开(公告)日：1999-10-05
申请号：US35798
申请日：1998-03-06
申请人： Santi Kulprathipanja , Benjamin C. Spehlmann , Richard R. Willis , John D. Sherman , William A. Leet
发明人： Santi Kulprathipanja , Benjamin C. Spehlmann , Richard R. Willis , John D. Sherman , William A. Leet
摘要： A solution is provided to the long sought inorganic alternative to resin based adsorbents for iodide clean-up service for corrosive organic liquid. The solution involves the use of a solid inorganic adsorbent comprising a combination of a silica-rich zeolite molecular sieve, which has been cation-exchanged with an iodide-reactive metal selected from silver, mercury, copper, lead, thallium, palladium or mixtures thereof, with a substantially insoluble, porous refractory inorganic oxide binder. Reactivation and regeneration technique for the spent inorganic adsorbent are also covered.
摘要翻译： 提供了一种解决方案，用于长期寻求无机替代树脂基吸附剂，用于腐蚀性有机液体的碘化物清除服务。 该溶液包括使用固体无机吸附剂，其包含与选自银，汞，铜，铅，铊，钯或其混合物的碘化物反应性金属进行阳离子交换的富含二氧化硅的沸石分子筛的组合 具有基本上不溶的多孔耐火无机氧化物粘合剂。 还讨论了废无机吸附剂的再活化和再生技术。
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5.发明授权Process for performing a swing bed regeneration operation with minimal downstream upsets 失效用于以最小的下游扰动进行摇床再生操作的过程
公开(公告)号：US5851944A
公开(公告)日：1998-12-22
申请号：US742021
申请日：1996-11-01
申请人： Charles P. Luebke , William A. Leet , Joseph E. Zimmermann , Ronald J. Vangelisti , Terry L. Marker
发明人： Charles P. Luebke , William A. Leet , Joseph E. Zimmermann , Ronald J. Vangelisti , Terry L. Marker
CPC分类号： B01J38/48 , B01J20/08 , B01J20/12 , B01J20/20 , B01J20/3416 , B01J20/3433 , B01J20/3475 , B01J49/00
摘要： A process for regenerating solid treating particles contained in at least two vessels of a swing bed regeneration operation where the effluent of the regeneration operation is maintained regeneration fluid-free and at a substantially constant flowrate has been developed. The swing bed regeneration operation involves at least two vessels, one of which is on-line treating process fluid, and the other is off-line for regeneration. At least a portion of the process fluid effluent from the vessel on-line is conducted to a displacement surge drum. The flowrate of the process fluid effluent from the displacement surge drum is controlled so that downstream units receive a substantially constant flowrate. A portion of the process fluid effluent from the displacement surge drum or a portion of the process fluid effluent from the vessel on-line is periodically used to displace regeneration fluid from the vessel off-line, and during the displacement, the flowrate of effluent from the displacement surge drum is increased to provide additional flow to the vessel off-line without having to reduce the flow to downstream units. In a specific embodiment, both process fluid and regeneration fluid are conducted to the displacement surge drum. The process fluid is used as described above. The regeneration fluid is used to displace process fluid from the vessel that is off-line prior to regeneration of the treating particles. In another specific embodiment, the treating particles are rinsed prior to regeneration to desorb and recycle any adsorbed reactant.
摘要翻译： 已经开发了再生固体处理颗粒的方法，该固体处理颗粒包含在挥发床再生操作的至少两个容器中，其中再生操作的流出物保持再生无流体并且具有基本上恒定的流量。 摇床再生操作涉及至少两个容器，其中一个是在线处理过程流体，另一个是离线再生。 将来自容器的在线工艺流体的至少一部分流出物导入位移缓冲鼓。 控制来自位移缓冲鼓的工艺流体流出物的流量，使得下游单元接收基本上恒定的流量。 定期使用来自位移缓冲鼓的一部分过程流体流出物或来自容器在线的一部分工艺流体流出物从脱离容器取代再生流体，并且在排出期间流出物的流出物从 位移缓冲鼓被增加以提供离线的附加流量，而不必减少流向下游单元的流量。 在具体的实施例中，将处理流体和再生流体两者传导到位移缓冲鼓。 如上所述使用过程流体。 再生流体用于在处理颗粒再生之前从离线的容器中取代过程流体。 在另一个具体实施方案中，处理颗粒在再生之前被冲洗以解吸并再循环任何吸附的反应物。
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6.发明授权
公开(公告)号：US6069284A
公开(公告)日：2000-05-30
申请号：US99042
申请日：1998-06-17
申请人： Charles P. Luebke , William A. Leet
发明人： Charles P. Luebke , William A. Leet
CPC分类号： C07C41/42
摘要： A process to separate diisopropyl ether from a mixture of diisopropyl ether, isopropyl alcohol, and water has been developed. The process begins with distilling, in a distillation column, the mixture into a bottoms stream containing water and isopropyl alcohol and an overhead stream containing an azeotrope of diisopropyl ether, isopropyl alcohol, and water. The overhead stream is condensed and allowed to form an aqueous phase enriched in isopropyl alcohol and water and an organic phase enriched in diisopropyl ether with some water and isopropyl alcohol in an overhead receiver. The aqueous phase is recycled to the distillation column. The organic phase is passed to a drier to form a bottoms product stream containing at least 99 mole percent diisopropyl ether and a drier overhead stream containing an azeotrope of diisopropyl ether, isopropyl alcohol, and water. The drier overhead stream is condensed and introduced to the overhead receiver described earlier to combine with the condensed overhead stream from the distillation column and to form the aqueous phase and an organic phase discussed above. The bottoms diisopropyl ether product stream from the drier is collected.
摘要翻译： 已经开发了从二异丙醚，异丙醇和水的混合物中分离出二异丙醚的方法。 该方法开始于在蒸馏塔中将混合物蒸馏成含有水和异丙醇的塔底物流和含有二异丙基醚，异丙醇和水的共沸物的塔顶物流。 将塔顶馏出物冷凝，并在顶置式收容机中形成富含异丙醇和水的富含水相和富含二异丙醚的有机相与一些水和异丙醇。 将水相再循环至蒸馏塔。 将有机相通入干燥器以形成含有至少99摩尔％二异丙醚的底部产物流和含有二异丙基醚，异丙醇和水的共沸物的干燥塔顶物料流。 干燥的塔顶馏出物流被冷凝并引入到先前描述的塔顶塔顶收集器中以与来自蒸馏塔的冷凝的塔顶馏出物流合并形成上述的水相和有机相。 收集来自干燥器的底部二异丙醚产物流。
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7.发明授权Process for performing a swing bed regeneration operation with minimal downstream upsets 有权用于以最小的下游扰动进行摇床再生操作的过程
公开(公告)号：US6046124A
公开(公告)日：2000-04-04
申请号：US170810
申请日：1998-10-13
申请人： Charles P. Luebke , William A. Leet , Joseph E. Zimmermann , Ronald J. Vangelisti , Terry L. Marker
发明人： Charles P. Luebke , William A. Leet , Joseph E. Zimmermann , Ronald J. Vangelisti , Terry L. Marker
CPC分类号： B01J49/00 , B01J20/08 , B01J20/12 , B01J20/20 , B01J20/3416 , B01J20/3433 , B01J20/3475 , B01J38/48
摘要： A process for regenerating solid treating particles contained in at least two vessels of a swing bed regeneration operation where the effluent of the regeneration operation is maintained regeneration fluid-free and at a substantially constant flowrate has been developed. The swing bed regeneration operation involves an on-line vessel treating process fluid and an off-line vessel for regeneration. At least a portion of the process fluid effluent from the vessel on-line is conducted to a displacement surge drum. The flowrate of the process fluid effluent from the displacement surge drum is controlled so that downstream units receive a substantially constant flowrate. A portion of the process fluid effluent from the displacement surge drum is periodically used to displace regeneration fluid from the vessel off-line, and during the displacement, the flowrate of effluent from the displacement surge drum is increased to provide additional flow to the vessel off-line without having to reduce the flow to downstream units.
摘要翻译： 已经开发了再生固体处理颗粒的方法，该固体处理颗粒包含在挥发床再生操作的至少两个容器中，其中再生操作的流出物保持再生无流体并且具有基本上恒定的流量。 摆动床再生操作涉及在线容器处理过程流体和用于再生的离线容器。 将来自容器的在线工艺流体的至少一部分流出物导入位移缓冲鼓。 控制来自位移缓冲鼓的工艺流体流出物的流量，使得下游单元接收基本上恒定的流量。 周期性地使来自位移缓冲鼓的过程流体流出物的一部分离开来自容器的再生流体，并且在排出期间，来自位移缓冲鼓的流出物的流量被增加以提供额外的流向容器 而不必减少流向下游单位的流量。
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