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公开(公告)号:US4396787A
公开(公告)日:1983-08-02
申请号:US324331
申请日:1981-11-23
IPC分类号: B01J10/00 , B01J19/00 , B01J27/00 , C07B61/00 , C07C1/00 , C07C2/44 , C07C2/50 , C07C7/20 , C07C13/06 , C07C13/20 , C07C13/263 , C07C67/00 , C07C3/035
CPC分类号: C07C7/20 , B01J19/0013 , B01J19/002 , C07C2/44 , C07C2/50 , B01J2219/00063 , B01J2219/00065 , B01J2219/00094 , B01J2219/00159 , B01J2219/00182 , B01J2219/00186 , B01J2219/00252 , C07C2101/16
摘要: Formation of undesirable popcorn polymer on the walls of a reaction vessel during thermal dimerization of butadiene is prevented by coating the walls with a falling film of aqueous sodium nitrite solution.
摘要翻译: 通过用亚硝酸钠水溶液的降膜涂覆壁,防止在丁二烯的热二聚期间在反应容器的壁上形成不期望的爆米花聚合物。
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公开(公告)号:US4831197A
公开(公告)日:1989-05-16
申请号:US92104
申请日:1987-09-02
申请人: Friedrich Henn , Wilhelm Neier , Gunter Strehlke , Werner Webers
发明人: Friedrich Henn , Wilhelm Neier , Gunter Strehlke , Werner Webers
IPC分类号: C07C29/04 , B01J31/00 , B01J31/10 , B01J35/10 , C07B61/00 , C07C20060101 , C07C27/00 , C07C31/00 , C07C31/02 , C07C31/10 , C07C31/12 , C07C31/125 , C07C67/00
CPC分类号: C07C29/04
摘要: An improved process for the production of lower aliphatic alcohols by the catalytic hydration of a lower aliphatic olefin in the presence of a strongly acidic cation exchange resin catalyst in a fixed bed reactor and in which a cationic surfactant has been added to the process water is provided.
摘要翻译: 提供了一种通过在固定床反应器中的强酸性阳离子交换树脂催化剂的存在下通过低级脂族烯烃的催化水合生产低级脂族醇并且其中向工艺用水中加入阳离子表面活性剂的改进方法 。
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公开(公告)号:US4113780A
公开(公告)日:1978-09-12
申请号:US547846
申请日:1975-02-06
申请人: Gunter Strehlke , Gunther Osterburg
发明人: Gunter Strehlke , Gunther Osterburg
CPC分类号: C07C45/83
摘要: Acetone containing less than 0.2 weight percent water is produced in an extractive distillation of acetone containing appreciable quantities of water by utilizing isopropyl alcohol as the extracting agent.
摘要翻译: 通过利用异丙醇作为提取剂,在含有可观量的水的丙酮的萃取蒸馏中产生含有小于0.2重量%水的丙酮。
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公开(公告)号:US3979465A
公开(公告)日:1976-09-07
申请号:US431177
申请日:1974-01-07
申请人: Gunter Strehlke , Gunther Osterburg
发明人: Gunter Strehlke , Gunther Osterburg
CPC分类号: C07C29/06
摘要: Process for the production of an aliphatic alcohol comprising reacting an olefin having from 2 to 4 carbon atoms with sulfuric acid to form an ester reaction product, diluting said product with water and steam stripping to remove a lower aliphatic alcohol overhead leaving a dilute sulfuric acid solution, concentrating said dilute sulfuric acid solution in a first stage indirect evaporator, recycling the steam generated in this first stage evaporator to the steam stripping step, further concentrating the sulfuric acid solution in a second stage direct heat evaporator to form a concentrated sulfuric acid solution and recycling said concentrated sulfuric acid solution for reaction with fresh olefin feed.
摘要翻译: 制备脂肪醇的方法,包括使具有2至4个碳原子的烯烃与硫酸反应以形成酯反应产物,用水和汽提汽提稀释所述产物以除去低级脂族醇塔顶馏去稀硫酸溶液 将所述稀硫酸溶液浓缩在第一级间接蒸发器中,将在该第一级蒸发器中产生的蒸汽再循环到汽提步骤,进一步将硫酸溶液浓缩在第二级直接热蒸发器中以形成浓硫酸溶液, 回收利用浓硫酸溶液与新鲜烯烃进料反应。
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