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1. 发明授权

US5475183A Process for producing lower olefins 失效
标题翻译：低级烯烃的制备方法
公开(公告)号：US5475183A
公开(公告)日：1995-12-12
申请号：US161061
申请日：1993-12-03
申请人： Shintaro Araki , Katsuo Taniguchi , Toshiyuki Isaka
发明人： Shintaro Araki , Katsuo Taniguchi , Toshiyuki Isaka
IPC分类号： B01J21/04 , C07C1/24 , C07C1/20
CPC分类号： B01J21/04 , C07C1/24 , C07C2521/04 , C07C2521/12 , Y02P20/52
摘要： A process for the production of lower olefins by dehydrating lower alcohols having 2 to 4 carbon atoms which comprises using a .gamma.-alumina catalyst containing 0.3% by weight or less of impurities in total excluding SiO.sub.2, the impurities including 0.2% by weight or less of sulfur content calculated in terms of SO.sub.4 - and 0.05% by weight or less of sodium content calculated in terms of Na.sub.2 O, and/or a process for the production of lower olefins by dehydrating lower alcohols having 2 to 4 carbon atoms that comprises using a .gamma.-alumina catalyst which contains 0.5 to 5% by weight of SiO.sub.2.According to the process of the present invention, lower olefins can be produced from lower alcohols with high yield and high selectivity for a prolonged period of time without reducing the catalytic activity.
摘要翻译：通过使具有2至4个碳原子的低级醇脱水生产低级烯烃的方法，该方法包括使用含有0.3重量％以下除了SiO 2以外的杂质总量为0.3重量％以下的γ-氧化铝催化剂，包含0.2重量％以下的杂质根据SO 4计算的硫含量和以Na 2 O计算的0.05重量％以下的钠含量，和/或通过使具有2至4个碳原子的低级醇脱水生产低级烯烃的方法，包括使用γ 含有0.5〜5重量％的SiO 2的氧化铝催化剂。根据本发明的方法，低级烯烃可以从高产率和高选择性的低级醇生产较长时间，而不降低催化活性。

2. 发明授权

US5227563A Preparation of propylene by dehydration of isopropanol in the presence of a pseudo-boehmite derived gamma alumina catalyst 失效
标题翻译：在假勃姆石衍生的γ氧化铝催化剂存在下，通过异丙醇脱水制备丙烯
公开(公告)号：US5227563A
公开(公告)日：1993-07-13
申请号：US700319
申请日：1991-05-09
申请人： Hiroshi Fukuhara , Fujihisa Matsunaga , Mitsuki Yasuhara , Shintaro Araki , Toshiyuki Isaka
发明人： Hiroshi Fukuhara , Fujihisa Matsunaga , Mitsuki Yasuhara , Shintaro Araki , Toshiyuki Isaka
IPC分类号： B01J21/04 , C07C1/24
CPC分类号： B01J21/04 , C07C1/24 , C07C2521/04 , Y02P20/52
摘要： Propylene can be prepared in high yield and selectivity by dehydrating isopropanol in the presence of a .gamma.-alumina catalyst having a mean pore diameter of from 30 to 150 .ANG. with a standard deviation (.sigma..sub.n) of from 10 to 40 .ANG. based on statistic calculation from pore diameter and pore volume.
摘要翻译：丙烯可以通过在平均孔径为30至150的γ-氧化铝催化剂的存在下脱水异丙醇而制备，基于统计学计算，标准偏差（σ）为10至40安培从孔径和孔体积。

3. 发明授权

US06316677B1 Production process of bisphenol compounds 失效
标题翻译：双酚化合物的生产工艺
公开(公告)号：US06316677B1
公开(公告)日：2001-11-13
申请号：US09270016
申请日：1999-03-16
申请人： Masahiro Enna , Naoshi Nagai , Toshiyuki Isaka
发明人： Masahiro Enna , Naoshi Nagai , Toshiyuki Isaka
IPC分类号： C07C3912
CPC分类号： C07C37/84 , C07C37/14 , C07C37/16 , C07C39/16 , C07C39/15
摘要： A process for the production of a bisphenol compound comprising: a step for reacting a phenolic compound (a) with at least one compound (b) selected from the group consisting of dialkenylbenzene compounds, bis(hydroxyalkyl)benzene compounds and (hydroxyalkyl)-alkenylbenzene compounds or at least one compound (c) selected from the group consisting of monoalkenylphenolic compounds and mono(hydroxyalkyl)phenolic compounds in the presence of an acidic catalyst to obtain a reaction mixture containing said bisphenol compound, a step for neutralizing the reaction mixture with an anion exchange resin, a step for removing a remaining phenolic compound from the reaction mixture to concentrate the neutralized reaction mixture, and a step for isolating the bisphenol compound from the resulting concentrated mixture. This process enables to produce a bisphenol compound, which is useful for preparing raw materials of thermoplastic polymers, surface-active agents and stabilizers.
摘要翻译：一种制备双酚化合物的方法，包括：使酚类化合物（a）与至少一种选自二苯基苯化合物，双（羟烷基）苯化合物和（羟基烷基） - 烯基苯的化合物（b）反应的步骤化合物或至少一种选自单链烯基酚化合物和单（羟基烷基）酚类化合物的化合物（c），在酸性催化剂存在下，得到含有所述双酚化合物的反应混合物，将反应混合物与阴离子交换树脂，用于从反应混合物中除去剩余的酚类化合物以浓缩中和的反应混合物的步骤，以及从所得浓缩混合物中分离双酚化合物的步骤。该方法能够生产双酚化合物，其可用于制备热塑性聚合物的原料，表面活性剂和稳定剂。

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