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1. 发明授权

US06554967B1 Method of refining dihydroxyaryl compound 失效
标题翻译：二羟基芳基化合物的精制方法
公开(公告)号：US06554967B1
公开(公告)日：2003-04-29
申请号：US09575886
申请日：2000-05-22
申请人： Shuji Tanaka , Genji Koga , Hiroshi Kofuji , Tetsuro Kawashita
发明人： Shuji Tanaka , Genji Koga , Hiroshi Kofuji , Tetsuro Kawashita
IPC分类号： B01D334
CPC分类号： C07C37/74 , C07C39/08
摘要： A refined dihydroxyaryl compound, for example, catechol, having a high degree of purity and a very low metal content is produced by evaporating a starting dihydroxyaryl compound in a distillation column, condensing the vapor fraction in a condenser connected to a top outlet of the distillation column, and collecting the condensed fraction from the condenser into a storage tank through a conduit, wherein the condenser and optionally the conduit and/or the storage tank have inside surfaces thereof formed from a metal material containing at least 25% by weight of nickel, and the condensed dihydroxyaryl compound fraction is brought into contact with the specific nickel (25% or more)-containing metal inside surface.
摘要翻译：通过在蒸馏塔中蒸发起始的二羟基芳基化合物，将蒸馏馏分冷凝在与蒸馏塔顶部相连的冷凝器中，从而制得具有高纯度和非常低的金属含量的精制二羟基芳基化合物，例如邻苯二酚并且通过管道将冷凝的馏分从冷凝器收集到储罐中，其中冷凝器和任选地导管和/或储罐的内表面由含有至少25重量％镍的金属材料形成，使缩合的二羟基芳基化合物部分与特定的含镍（25％以上）的金属内表面接触。

2. 发明授权

US06336997B1 Process for refining heat-deteriorative compound, contained in multi-component liquid mixture, by distillation 有权
标题翻译：通过蒸馏精制含有多组分液体混合物中的热变质化合物的方法
公开(公告)号：US06336997B1
公开(公告)日：2002-01-08
申请号：US09241557
申请日：1999-02-01
申请人： Yukio Inaba , Kazunori Fujita , Hiroshi Kofuji
发明人： Yukio Inaba , Kazunori Fujita , Hiroshi Kofuji
IPC分类号： B01D328
CPC分类号： B01D3/322 , B01D3/146 , C07C41/42 , Y10S203/09 , C07C43/23
摘要： A heat-deteriorative compound contained in a liquid mixture is refined by a distillation procedure using a distillation column in which a vapor fraction and a liquid fraction containing the heat-deteriorative compound are generated from the liquid mixture, and a liquid film-falling reboiler in which the liquid fraction falls in the form of liquid films along inner surfaces of a plurality of vertical heat-conductive pipes at a Reynolds number (Re) of 700 to 10,000 and heated to a temperature lower than the heat-deterioration temperature of the heat deteriorative compound to such an extent that 1 to 15% by weight of the liquid fraction is evaporated per pass through the reboiler, the heated liquid fraction being returned into the distillation column to generate the vapor fraction from the liquid mixture fed into the distillation column.
摘要翻译：液体混合物中含有的热变质化合物通过使用蒸馏塔的蒸馏步骤进行精炼，其中从液体混合物中产生含有热变质化合物的蒸气馏分和液体馏分，其中液体馏分沿着多个垂直导热管的内表面以700至10,000的雷诺数（Re）落入液体膜的形式，并加热至低于热劣化温度的温度化合物，使得每次通过再沸器蒸发1至15重量％的液体馏分，加热的液体馏分返回到蒸馏塔中以从进料到蒸馏塔的液体混合物中产生蒸气馏分。

3. 发明授权

US06512147B2 Apparatus and process for generating mixed multi-component vapor 有权
公开(公告)号：US06512147B2
公开(公告)日：2003-01-28
申请号：US10108675
申请日：2002-03-28
申请人： Yukio Inaba , Kazunori Fujita , Hiroshi Kofuji
发明人： Yukio Inaba , Kazunori Fujita , Hiroshi Kofuji
IPC分类号： C07C4323
CPC分类号： C07C41/09 , B01D1/0094 , B01D1/225 , C07C43/23
摘要： A mixed liquid of two or more components different in boiling temperature from each other and soluble in or compatible with each other is evaporated into a mixed vapor having a similar composition to that of the mixed liquid by using an apparatus having a thin film evaporator (1) having a feed inlet (1a) and a delivery outlet (1b), while forcedly circulating the non-evaporated portion of the mixed multi-component liquid by withdrawing the non-evaporated mixed liquid portion from the delivery side end portion of the evaporator and returning the mixed liquid portion into the feed side end portion of the evaporator through a circulating line (3), and the resultant mixed multi-component vapor can be used as a mixed material vapor for a gas phase catalytic reaction for producing, for example, a mono and/or a di-alkylether of an aromatic dihydroxy compound.

4. 发明授权

US06262315B1 Process and apparatus for producing dihydric phenolic compound 有权
标题翻译：二羟基酚类化合物的制备方法和装置
公开(公告)号：US06262315B1
公开(公告)日：2001-07-17
申请号：US09320094
申请日：1999-05-26
申请人： Yukio Inaba , Kazunori Fujita , Hiroshi Kofuji
发明人： Yukio Inaba , Kazunori Fujita , Hiroshi Kofuji
IPC分类号： C07C3700
CPC分类号： B01J19/245 , B01J2219/00103 , B01J2219/0011 , C07C37/60 , Y02P20/52 , C07C39/08
摘要： A dihydric phenolic compound is produced, with a high selectivity thereof, by a plurality of oxidation reactors connected to each other in series, by (1) feeding a monohydric phenolic compound with a temperature of 30 to 100° C., a peroxide compound, a catalyst and optionally a ketone compound into a first reactor to oxidize the monohydric phenolic compound, and delivering a resultant reaction mixture containing the produced dihydric phenolic compound and non-reacted monohydric phenolic compound from the first reactor; (2) passing the reaction mixture through one or more reactors succeeding to the first reactor, to further oxidize the monohydric phenolic compound, while, in the steps (1) and (2), a portion of the peroxide compound is fed into the first reactor and the remaining portion of the peroxide compound is fed into at least one succeeding reactor; and (3) delivering a first reaction mixture produced in a rearend reactor and comprising the produced dihydric phenolic compound, the non-reacted monohydric phenolic compound and peroxide compound and the catalyst from the rearend reactor.
摘要翻译：通过（1）将温度为30〜100℃的一元酚类化合物，过氧化物化合物，过氧化物化合物，催化剂和任选的酮化合物转化成第一反应器以氧化一元酚类化合物，并从第一反应器中输送所得的含有所产生的二羟基酚化合物和未反应的一元酚化合物的反应混合物; （2）使反应混合物通过在第一反应器之后的一个或多个反应器，以进一步氧化一元酚类化合物，而在步骤（1）和（2）中，一部分过氧化物被加入第一将剩余部分的过氧化物进料至至少一个后续反应器; 和（3）在再循环反应器中产生的第一反应混合物，并且包含所产生的二羟基酚化合物，未反应的一元酚类化合物和过氧化物化合物以及来自再循环反应器的催化剂。

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