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公开(公告)号：US4308110A
公开(公告)日：1981-12-29
申请号：US193588
申请日：1980-10-03
Applicant: Hirokazu Hosaka , Kunihiko Tanaka , Toshiharu Morita , Katsuyuki Shiota , Yuji Ueda
Inventor： Hirokazu Hosaka , Kunihiko Tanaka , Toshiharu Morita , Katsuyuki Shiota , Yuji Ueda
CPC classification number: C07C37/685 , C07C37/74
Abstract: Highly decolorized, purified hydroquinone and resorcinol can be separated from each other from a mixture containing hydroquinone and resorcinol and recovered by continuously rectifying the mixture, thereby obtaining rectification bottoms containing resorcinol and hydroquinone in a ratio by weight of resorcinol to hydroquinone of 0.1-1:1 while obtaining resorcinol as a distillate, redistilling the rectification bottoms, contacting hydroquinone vapor with water vapor, condensing the hydroquinone vapor in the presence of the water vapor, thereby recovering hydroquinone as an aqueous hydroquinone solution, and then recrystallizing the aqueous hydroquinone solution, if necessary, in the presence of an organic solvent, thereby separating hydroquinone from the aqueous solution.
Abstract translation: 高度脱色，纯化的氢醌和间苯二酚可以从含有氢醌和间苯二酚的混合物中分离出来，并通过连续精馏混合物回收，从而得到间苯二酚和氢醌的精馏塔底物，间苯二酚与氢醌的重量比为0.1-1： 1，同时获得间苯二酚作为馏出物，重新蒸馏精馏塔底，将氢醌蒸气与水蒸汽接触，在水蒸气存在下冷凝氢醌蒸气，从而回收氢醌作为水性氢醌溶液，然后重结晶氢醌水溶液，如果 必要时，在有机溶剂的存在下，从水溶液中分离氢醌。
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公开(公告)号：US4059637A
公开(公告)日：1977-11-22
申请号：US607020
申请日：1975-08-22
Applicant: Hirokazu Hosaka , Kenji Tanimoto , Hiromichi Okabe , Kunthiko Tanaka , Yuji Ueda , Iwao Dohgane
Inventor： Hirokazu Hosaka , Kenji Tanimoto , Hiromichi Okabe , Kunthiko Tanaka , Yuji Ueda , Iwao Dohgane
IPC: C07C409/12 , C07C67/00 , C07C407/00 , C07C179/02
CPC classification number: C07C407/003
Abstract: A method for extracting a dihydroperoxide of a dialkylbenzene of the formula, ##STR1## wherein each R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is independently a lower alkyl group, from an aqueous alkali solution of the said dihydroperoxide with at least one organic solvent selected from the group consisting of C.sub.4 -C.sub.10 ketones, C.sub.4 -C.sub.10 ethers and C.sub.4 -C.sub.8 alcohols, which comprises extracting the dihydroperoxide by a countercurrent multi-stage extraction at a temperature between 0.degree. and 85.degree. C with a temperature gradient, the aqueous alkali solution being fed to the lower temperature zone, the organic solvent being fed to the higher temperature zone, and each aqueous alkali solution and organic solvent being fed countercurrently, whereby the dihydroperoxide is obtained in the form of organic solvent solution from the lower temperature zone.
Abstract translation: 一种提取下式的二烷基苯的二氢过氧化物的方法，其中每个R 1，R 2，R 3和R 4各自为低级烷基，所述二氢过氧化物的碱性水溶液与至少一种选自以下的有机溶剂 其包括C4-C10酮，C4-C10醚和C4-C8醇，其包括在0℃至85℃之间的温度梯度下通过逆流多级萃取萃取二氢过氧化物，碱水溶液为 进料到较低温度区域，将有机溶剂进料到较高温度区域，并将每种碱性水溶液和有机溶剂逆流进料，由此从低温区获得有机溶剂溶液形式的二氢过氧化物。
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公开(公告)号：US4032581A
公开(公告)日：1977-06-28
申请号：US592935
申请日：1975-07-03
Applicant: Akira Tasaka , Hirokazu Hosaka , Iwao Dohgane
Inventor： Akira Tasaka , Hirokazu Hosaka , Iwao Dohgane
CPC classification number: C07C37/84
Abstract: A method for separating m- or p-cresol from a mixture of m- and p-cresols having a composition outside the two compositions which give respectively the eutectic points, characterized by subjecting the mixture to a crystallization treatment under a pressure of not less than about 300atmospheres.
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公开(公告)号：US3953521A
公开(公告)日：1976-04-27
申请号：US590930
申请日：1975-06-27
Applicant: Hideaki Suda , Iwao Dohgane , Takashi Chinuki , Kenji Tanimoto , Hirokazu Hosaka , Yukimichi Nakao , Yuji Ueda , Seiya Imada , Hideki Yanagihara , Kunihiko Tanaka
Inventor： Hideaki Suda , Iwao Dohgane , Takashi Chinuki , Kenji Tanimoto , Hirokazu Hosaka , Yukimichi Nakao , Yuji Ueda , Seiya Imada , Hideki Yanagihara , Kunihiko Tanaka
IPC: C07C409/12 , C07C179/06
CPC classification number: C07C409/12 , C07C407/00 , C07C407/003
Abstract: Meta-and/or paradiisopropylbenzene dihydroperoxides are continuously produced by oxidizing meta-and/or paradiisopropylbenzenes in liquid phase through contact with oxygen or a gas containing oxygen, while keeping the concentration of meta-and/or paradiisopropylbenzene monohydroperoxides of the oxidation product solution in a range of 20 to 40% by weight.
Abstract translation: 通过在与氧气或含氧气体接触的情况下液相氧化间位和/或对二异丙基苯，同时将氧化产物溶液的间 - 和/或对二甲基异丙基苯单氢过氧化物的浓度保持在一定范围内，从而连续制备元和/或对二异丙基苯二氢过氧化物 范围为20〜40重量％。
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公开(公告)号：US3950431A
公开(公告)日：1976-04-13
申请号：US399248
申请日：1973-09-20
Applicant: Hideaki Suda , Iwao Dohgane , Takashi Chinuki , Kenji Tanimoto , Hirokazu Hosaka , Yukimichi Nakao , Yuji Ueda , Seiya Imada , Hideki Yanagihara , Kunihiko Tanaka
Inventor： Hideaki Suda , Iwao Dohgane , Takashi Chinuki , Kenji Tanimoto , Hirokazu Hosaka , Yukimichi Nakao , Yuji Ueda , Seiya Imada , Hideki Yanagihara , Kunihiko Tanaka
IPC: C07C409/12 , B01D11/04 , C07C67/00 , C07C407/00 , C07C179/02
CPC classification number: C07C45/80 , B01D11/0488 , C07C407/00 , C07C407/003
Abstract: Impurities, that is, by-products, in an oxidation product solution obtained by oxidation of diisopropylbenzene by molecular oxygen or in the oxidation product solution freed from diisopropylbenzene dihydroperoxide, are removed by extracting the by-products such as carbinols, ketones and styrenes from the solution with a mixture of an aqueous alkaline solution and at least one of alcohols having 1 to 3 carbon atoms such as methanol, ethanol, and isopropanol, as an extracting reagent at a temperature of 20.degree. to 80.degree.C.
Abstract translation: 通过用分子氧氧化二异丙基苯或通过从二异丙基苯二氢过氧化物中除去的氧化产物溶液获得的氧化产物溶液中的杂质，即副产物，通过从副产物溶液中提取副产物，例如甲醇，酮和苯乙烯 溶液与碱性水溶液和至少一种具有1至3个碳原子的醇的混合物如甲醇，乙醇和异丙醇作为萃取剂，在20至80℃的温度下进行。
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Patent Agency Ranking
公开(公告)号：US3932528A
公开(公告)日：1976-01-13
申请号：US391873
申请日：1973-08-27
Applicant: Hideaki Suda , Iwao Dohgane , Takashi Chinuki , Kenji Tanimoto , Hirokazu Hosaka , Yukimichi Nakao , Yuji Ueda , Seiya Imada , Hideki Yanagihara , Kunihiko Tanaka
Inventor： Hideaki Suda , Iwao Dohgane , Takashi Chinuki , Kenji Tanimoto , Hirokazu Hosaka , Yukimichi Nakao , Yuji Ueda , Seiya Imada , Hideki Yanagihara , Kunihiko Tanaka
IPC: C07C409/12 , C07C67/00 , C07C407/00 , C07C179/02
CPC classification number: C07C407/006 , C07C407/003
Abstract: Dihydroperoxides of dialkylaromatic hydrocarbons are separated in high yield from an aqueous alkaline solutions of hydroperoxides containing the dihydroperoxides by adding 0.01 to 1 % by weight of a compound having a nitrogen base, such as ammonia and aromatic amines, to the solution, based on the weight of the solution, thereby stabilizing the dihydroperoxides in the solution, and separating the dihydroperoxides therefrom by extraction.
Abstract translation: 基于重量，通过向溶液中加入0.01至1重量％的具有氮碱的化合物（例如氨和芳族胺），将二烷基芳烃的二氢过氧化物以高产率与含有二氢过氧化物的氢过氧化物的碱性水溶液分离。 的溶液，从而稳定溶液中的二氢过氧化物，并通过萃取从其中分离二氢过氧化物。
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公开(公告)号：US4044052A
公开(公告)日：1977-08-23
申请号：US578661
申请日：1975-05-19
Applicant: Hideaki Suda , Iwao Dohgane , Hirokazu Hosaka
Inventor： Hideaki Suda , Iwao Dohgane , Hirokazu Hosaka
IPC: C07C37/84 , C07C273/16 , C07C102/00 , C07B21/00
CPC classification number: C07C37/84 , C07C273/16
Abstract: A process for recovery of urea from a phenolic solution thereof which comprises adding an organic solvent selected from the group consisting of aliphatic amides, ethers, carbon disulfide and dimethylsulfoxide to the said phenolic solution and collecting the separated crystals of urea from the resultant mixture. The process is characteristic in recovering urea in the solid state without the use of water but a particular organic solvent.
Abstract translation: 一种从其酚溶液中回收尿素的方法，包括向所述酚类溶液中加入选自脂族酰胺，醚，二硫化碳和二甲基亚砜的有机溶剂，并从所得混合物中收集分离出的尿素晶体。 该方法在不使用水而是特定的有机溶剂的情况下在固态回收尿素中是特征的。
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公开(公告)号：US4021495A
公开(公告)日：1977-05-03
申请号：US588117
申请日：1975-06-18
Applicant: Hirokazu Hosaka , Kunihiko Tanaka , Yuji Ueda
Inventor： Hirokazu Hosaka , Kunihiko Tanaka , Yuji Ueda
CPC classification number: C07C37/84
Abstract: A process for purifying crude .beta.-naphthol obtained via an alkylnaphthalene hydroperoxide, comprising subjecting the crude .beta.-naphthol to a recrystallization treatment using (1) an aliphatic or alicyclic hydrocarbon solvent having 5 to 10 carbon atoms, or (2) a mixed solvent comprising the aliphatic or alicyclic hydrocarbon solvent and at least one other solvent selected from the group consisting of benzene, a benzene derivative, a ketone, an alcohol, an ether and an ester.
Abstract translation: 一种纯化通过烷基萘氢过氧化物得到的粗β-萘酚的方法，包括使用（1）具有5至10个碳原子的脂族或脂环族烃溶剂对粗β-萘酚进行重结晶处理，或（2）包含 脂族或脂环烃溶剂和选自苯，苯衍生物，酮，醇，醚和酯的至少一种其它溶剂。
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公开(公告)号：US4336109A
公开(公告)日：1982-06-22
申请号：US151530
申请日：1980-05-19
Applicant: Hirokazu Hosaka , Kenji Tanimoto , Kunihiko Tanaka , Toshiharu Morita , Katsuyuki Shiota , Yuji Ueda , Seiichi Kai
Inventor： Hirokazu Hosaka , Kenji Tanimoto , Kunihiko Tanaka , Toshiharu Morita , Katsuyuki Shiota , Yuji Ueda , Seiichi Kai
Abstract: Acetone having a markedly low content of aldehydes is recovered from an aqueous rectification residue brought about by rectification of crude acetone carried out after one crude acetone having been alkali-treated or while an alkali or an aqueous solution thereof being added to the crude acetone, by mixing the aqueous rectification residue with an alkali, neutralizing the mixture to a pH of 4 to 9, and then subjecting the resulting mixture to distillation to obtain acetone as a distillate.
Abstract translation: 具有显着低的醛含量的丙酮从经过碱处理的一种粗制丙酮之后进行的粗丙酮的精馏所产生的水性精馏残渣或将碱或其水溶液加入粗丙酮中的丙酮中回收。 将水精制残渣与碱混合，将混合物中和至pH4至9，然后将所得混合物进行蒸馏，得到作为馏出物的丙酮。
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公开(公告)号：US3969420A
公开(公告)日：1976-07-13
申请号：US375920
申请日：1973-07-02
Applicant: Hideaki Suda , Iwao Dohgane , Takashi Chinuki , Kenji Tanimoto , Hirokazu Hosaka , Yukimichi Nakao , Yuji Ueda , Seiya Imada , Hideki Yanagihara , Kunihiko Tanaka
Inventor： Hideaki Suda , Iwao Dohgane , Takashi Chinuki , Kenji Tanimoto , Hirokazu Hosaka , Yukimichi Nakao , Yuji Ueda , Seiya Imada , Hideki Yanagihara , Kunihiko Tanaka
CPC classification number: C07C37/72 , C07C37/685 , C07C37/84
Abstract: Resorcinol and hydroquinone are recovered in mixture at a high purity from a solution containing resorcinol and hydroquinone, especially, a solution resulting from cleavage of oxidation products of isopropylbenzene and successive distillation of the cleavage product thereby to remove lower and higher boiling components therefrom, by adding 0.5 to 20 parts by weight of at least one solvent selected from aromatic hydrocarbons, aromatic hydrocarbons having lower alkyl substituent groups, and aliphatic hydrocarbons having 7 to 10 carbon atoms to one part by weight of said solution, if necessary, together with 1 to 30% by weight of at least one compound selected from ketones having 3 to 10 carbon atoms, alcohols having 1 to 5 carbon atoms and aliphatic esters having 3 to 5 carbon atoms, based on the weight of the organic solvent, dissolving the solution into the organic solvent by heating, separating a mixture of resorcinol and hydroquinone as a solid phase from the organic solvent layer after slow cooling, and recovering the solid phase as a product. The resorcinol and hydroquinone in the organic solvent layer are further recovered through extraction with water. When water is used together with the organic solvent from the beginning of extraction, the resorcinol and hydrocarbon are obtained in an aqueous layer.
Abstract translation: 间苯二酚和氢醌以高纯度从含有间苯二酚和氢醌的溶液中回收，特别是从裂解异丙苯的氧化产物产生的溶液，并连续蒸馏裂解产物，从而通过加入从其中除去较低沸点和较高沸点的组分 0.5至20重量份的至少一种选自芳族烃，具有低级烷基取代基的芳族烃和具有7至10个碳原子的脂族烃的溶剂相对于所述溶液的1重量份，如果需要，连同1至30个 至少一种选自具有3至10个碳原子的化合物，具有1至5个碳原子的醇和3至5个碳原子的脂肪族酯的化合物，基于有机溶剂的重量，将该溶液溶解在有机溶剂中 溶剂，从有机溶剂层af分离作为固相的间苯二酚和氢醌的混合物 缓慢冷却，并回收作为产品的固相。 有机溶剂层中的间苯二酚和氢醌通过水提取进一步回收。 当水从开始开始与有机溶剂一起使用时，在水层中获得间苯二酚和烃。
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