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1. 发明授权

US4960941A Hydrogenation of aromatic amines to produce their ring hydrogenated counterparts 失效
标题翻译：芳香胺的氢化生成它们的环氢化对应物
公开(公告)号：US4960941A
公开(公告)日：1990-10-02
申请号：US175444
申请日：1988-03-30
申请人： Gamini A. Vedage , William W. Henderson , Bernard A. Toseland , Michel Deeba
发明人： Gamini A. Vedage , William W. Henderson , Bernard A. Toseland , Michel Deeba
IPC分类号： B01J23/46 , C07B61/00 , C07C67/00 , C07C209/00 , C07C209/72 , C07C211/35 , C07C211/36
CPC分类号： C07C209/72 , B01J23/464 , C07C2101/14
摘要： This invention relates to an improved hydrogenation process wherein aromatic amines are hydrogenated to their ring hydrogenated counterparts. These aromatic amines are presented by the formulas: ##STR1## wherein R is hydrogen or C.sub.1-6 aliphatic, R.sub.1 and R.sub.2 are hydrogen or C.sub.1-6 aliphatic, A is C.sub.1-4, NH or ##STR2## n is 0-2, x is 1-3 and y is 1 to 2 except the sum of the y groups in Formula I excluding A may be 1.The improvement resides in the use of a rhodium catalyst carried on titania support.

2. 发明授权

US5196587A Catalytic hydrogenation of crude methylene bridged polyphenylamines to produce polycyclohexylamines 失效
标题翻译：粗亚甲基桥联聚苯胺的催化氢化生产聚环己胺
公开(公告)号：US5196587A
公开(公告)日：1993-03-23
申请号：US699425
申请日：1991-05-13
申请人： Gamini A. Vedage , William W. Henderson , Bernard A. Toseland
发明人： Gamini A. Vedage , William W. Henderson , Bernard A. Toseland
IPC分类号： C07C209/72
CPC分类号： C07C209/72 , C07C2101/14
摘要： This invention relates to an improved process for the catalytic hydrogenation of methylene bridged polyphenylamines using rhodium as th e catalyst to produce the methylene bridged polycyclohexylamine counterparts. The improvement for hydrogenating crude methylene bridged polyphenylamines containing polyphenylamine oligomers and trace amounts of impurities, such as the formamide of the methylene bridged polyphenylamines, comprises contacting the crude polyphenylamine feed with a hydrogenation catalyst, other than rhodium, and one which is not a catalyst poison to rhodium, under conditions sufficient to at least partially hydrogenate the polyphenylamine mixture and then effecting hydrogenation of the methylene bridged polyphenylamine to the polycyclohexylamine counterpart in the presence of a rhodium catalyst. The pretreatment of the crude methylene bridged polyphenylamine feed apparently destroys the formamide derivatives and possibly other trace impurities in the mixture and thereby prevents rapid deactivation of the rhodium catalyst during hydrogenation of the aromatic ring.
摘要翻译：本发明涉及使用铑作为催化剂催化氢化亚甲基桥连聚苯胺以制备亚甲基桥连的聚环己胺对应物的改进方法。用于氢化含有聚苯胺低聚物和微量杂质的亚甲基桥联聚苯胺的改进，例如亚甲基桥接的聚苯胺的甲酰胺的改进包括使粗多胺进料与除铑之外的氢化催化剂和不是催化剂毒物在足以使聚苯胺混合物至少部分氢化，然后在铑催化剂存在下将亚甲基桥接的聚苯胺氢化为多环己胺的对照物的条件下，加入铑。粗亚甲基桥接的聚苯胺进料的预处理明显地破坏了混合物中的甲酰胺衍生物和可能的其它微量杂质，从而防止了芳族环加氢期间铑催化剂的快速失活。

3. 发明授权

US4642396A Process for separating nitroaromatic compounds from spent nitric acid 失效
标题翻译：将硝基芳族化合物与废硝酸分离的方法
公开(公告)号：US4642396A
公开(公告)日：1987-02-10
申请号：US638436
申请日：1984-08-07
申请人： Richard V. C. Carr , Bernard A. Toseland , David S. Ross
发明人： Richard V. C. Carr , Bernard A. Toseland , David S. Ross
IPC分类号： C01B21/36 , C07C201/16 , C07C79/10 , C07B43/02
CPC分类号： C07C201/16 , C01B21/36
摘要： This invention pertains to a process for extracting a nitroaromatic composition from a nitration medium containing nitric acid, water, and nitroaromatic. The process comprises contacting the nitration medium with nitric oxide under conditions such that the nitric oxide will react with the nitric acid to form nitrogen dioxide and water. Gaseous nitrogen dioxide is removed from the reaction medium and accordingly, the dissolved nitroaromatic present in the nitration medium separates to form an organic phase which then can be removed by decantation. Typically, one mole of nitric oxide is added to the nitration medium for every two moles of nitric acid present in said medium. Reaction conditions normally are from about 0.degree. to 90.degree. C.
摘要翻译：本发明涉及从含硝酸，水和硝基芳族化合物的硝化介质中提取硝基芳族组合物的方法。该方法包括使硝化介质与一氧化氮接触，使得一氧化氮将与硝酸反应形成二氧化氮和水。从反应介质中除去气态二氧化氮，因此，硝化介质中溶解的硝基芳族化合物分离形成有机相，然后可通过倾析除去有机相。通常，对于存在于所述介质中的每两摩尔硝酸，向硝化介质中加入1摩尔一氧化氮。反应条件通常为约0〜90℃

4. 发明授权

US5530168A Process for the synthesis of a C.sub.2 + Aliphatic alcohol in a slurry reactor comprising an in-situ catalyst impregnation step 失效
标题翻译：在含有原位催化剂浸渍步骤的淤浆反应器中合成C2 +脂族醇的方法
公开(公告)号：US5530168A
公开(公告)日：1996-06-25
申请号：US317053
申请日：1994-10-03
申请人： Richard P. Underwood , Bernard A. Toseland , Thomas A. Dahl , Janet F. Hugo
发明人： Richard P. Underwood , Bernard A. Toseland , Thomas A. Dahl , Janet F. Hugo
IPC分类号： C07C29/154 , C07C27/20
CPC分类号： C07C29/154
摘要： A process is set forth for the synthesis of a C.sub.2 + aliphatic alcohol from hydrogen and carbon oxides in the presence of a copper-based catalyst which has been impregnated with an alkali metal compound. The process differs from the prior art in that the catalyst is impregnated with the alkali metal compound in the same slurry reactor which is used for reacting the hydrogen and carbon oxides. By contrast, in the prior art C.sub.2 + aliphatic alcohol synthesis, impregnation of the copper-based catalyst with the alkali metal compound is accomplished by a separate step in a separate vessel. By eliminating this separate step, the present invention realizes a savings in processing and equipment costs.
摘要翻译：阐述了在浸渍有碱金属化合物的铜基催化剂存在下，从氢和碳氧化物合成C2 +脂族醇的方法。该方法与现有技术的不同之处在于，催化剂在用于使氢和碳氧化物反应的同一浆料反应器中用碱金属化合物浸渍。相比之下，在现有技术的C2 +脂族醇合成中，用碱金属化合物浸渍铜基催化剂是通过分离的容器中的单独步骤完成的。通过消除这个单独的步骤，本发明实现了处理和设备成本的节省。

5. 发明授权

US4597875A Precipitative removal of nitrocresols from dinitrotoluene waste streams 失效
标题翻译：从二硝基甲苯废液中沉淀除去硝基酚
公开(公告)号：US4597875A
公开(公告)日：1986-07-01
申请号：US731424
申请日：1985-05-07
申请人： Richard V. C. Carr , John E. Sawicki , Bernard A. Toseland
发明人： Richard V. C. Carr , John E. Sawicki , Bernard A. Toseland
IPC分类号： C02F9/00 , C07C201/16 , C02F1/52 , C02F1/66
CPC分类号： C02F1/66 , C07C201/16 , C02F2101/345 , C02F2101/38 , Y10S210/909
摘要： This invention relates to a process for removing nitrocresols and picric acid contaminants from a wastewater stream generated in the production of nitroaromatics, particularly dinitrotoluene, by the mixed acid technique. The process involves contacting the crude dinitrotoluene generated by the mixed acid technique with an alkaline medium to generate an alkaline wash water containing water soluble nitrocresols and picric acid therein. This wastewater is separated from the organic component and recycled for contact with further quantities of crude dinitrotoluene product from the reactor. When the concentration of the water soluble salts of nitrocresols and picric acid is of sufficient concentration the wash water is treated with aqueous acid in sufficient proportion to convert the water soluble salts to water insoluble organics. After treatment with acid, the organic material is separated from the wastewater and the organics incinerated.
摘要翻译：本发明涉及通过混合酸技术从硝基芳族化合物，特别是二硝基甲苯生产中产生的废水流中除去硝基甲酚和苦味酸污染物的方法。该方法包括将由混合酸技术产生的粗二硝基甲苯与碱性介质接触，以产生含有水溶性硝基甲酚和苦味酸的碱性洗涤水。该废水与有机组分分离并再循环用于与来自反应器的另外量的粗二硝基甲苯产物接触。当硝基甲酚和苦味酸的水溶性盐的浓度足够浓度时，洗涤水用足够比例的酸水溶液处理，以将水溶性盐转化为水不溶性有机物。用酸处理后，有机物与废水分离，有机物被焚烧。

6. 发明授权

US5202001A Preparation of urethane prepolymers having low levels of residual toluene diisocyanate 失效
标题翻译：制备具有低残留甲苯二异氰酸酯含量的氨基甲酸酯预聚物
公开(公告)号：US5202001A
公开(公告)日：1993-04-13
申请号：US727501
申请日：1991-07-09
申请人： William E. Starner , Bernard A. Toseland , Reinaldo M. Machado
发明人： William E. Starner , Bernard A. Toseland , Reinaldo M. Machado
IPC分类号： C07C269/08 , C08G18/10 , C08G18/76
CPC分类号： C07C269/08 , C08G18/10 , C08G18/7621 , Y10S159/10
摘要： A wiped film evaporation process for reducing the amount of residual organic polyisocyanate, especially toluene diisocyanate, in a polyurethane prepolymer reaction product mixture. An inert sweeping gas is added to the evaporation process, preferably after first passing through a holdup volume of the prepolymer which has passed through the evaporation zone.
摘要翻译：用于在聚氨酯预聚物反应产物混合物中减少残余有机多异氰酸酯，特别是甲苯二异氰酸酯的量的擦膜蒸发方法。优选在首先通过已经通过蒸发区的预聚物的滞留体积之后，向蒸发过程中加入惰性清扫气体。

7. 发明授权

US4482769A Reducing 2,4-dinitroortho-cresol in effluent stream from dinitrotoluene process 失效
标题翻译：从二硝基甲苯工艺中减少流出物中的2,4-二硝基对甲酚
公开(公告)号：US4482769A
公开(公告)日：1984-11-13
申请号：US533166
申请日：1983-09-16
申请人： Bernard A. Toseland , Richard Van Court Carr
发明人： Bernard A. Toseland , Richard Van Court Carr
IPC分类号： C07C201/16 , C07C79/10
CPC分类号： C07C201/08 , C07C201/16
摘要： Dinitrotoluene, which is produced by mixed acid nitration of toluene, is purified in a way which produces a product suitable for conversion to toluene diamine and a less environmentally objectionable by-product stream. The process involves contacting a crude dinitrotoluene stream containing by-product nitrophenolic materials with an alkaline material and monitoring the pH such that dinitroorthocresol by-product is maintained in the organic phase while the trinitroorthocresol by-products are converted to water-soluble materials and removed with an aqueous phase.
摘要翻译：通过甲苯的混合酸硝化生产的二硝基甲苯以产生适于转化为甲苯二胺的产物和较少环境不利的副产物流的方式被纯化。该方法包括将含有副产物硝基酚物质的粗二硝基甲苯流与碱性物质接触并监测pH，使二硝基对甲酚副产物保持在有机相中，而三硝基对甲酚副产物转化为水溶性物质，并用水相。

8. 发明授权

US5753716A Use of aluminum phosphate as the dehydration catalyst in single step dimethyl ether process 失效
标题翻译：在单步二甲醚工艺中使用磷酸铝作为脱水催化剂
公开(公告)号：US5753716A
公开(公告)日：1998-05-19
申请号：US803608
申请日：1997-02-21
申请人： Xiang-Dong Peng , Gene E. Parris , Bernard A. Toseland , Paula J. Battavio
发明人： Xiang-Dong Peng , Gene E. Parris , Bernard A. Toseland , Paula J. Battavio
IPC分类号： C07C29/153 , C07C29/154 , C07C29/156 , C07C41/01 , C07C27/00
CPC分类号： C07C29/156 , C07C29/153 , C07C29/154 , C07C41/01
摘要： The present invention pertains to a process for the coproduction of methanol and dimethyl ether (DME) directly from a synthesis gas in a single step (hereafter, the "single step DME process"). In this process, the synthesis gas comprising hydrogen and carbon oxides is contacted with a dual catalyst system comprising a physical mixture of a methanol synthesis catalyst and a methanol dehydration catalyst. The present invention is an improvement to this process for providing an active and stable catalyst system. The improvement comprises the use of an aluminum phosphate based catalyst as the methanol dehydration catalyst. Due to its moderate acidity, such a catalyst avoids the coke formation and catalyst interaction problems associated with the conventional dual catalyst systems taught for the single step DME process.
摘要翻译：本发明涉及在单一步骤（以下称为“单步DME方法”）中从合成气中直接共同生产甲醇和二甲醚（DME）的方法。在该方法中，包含氢和碳氧化物的合成气与包含甲醇合成催化剂和甲醇脱水催化剂的物理混合物的双重催化剂体系接触。本发明是提供活性和稳定的催化剂体系的该方法的改进。改进之处在于使用磷酸铝基催化剂作为甲醇脱水催化剂。由于其中等酸度，这种催化剂避免了与用于单步DME方法教导的常规双催化剂体系相关的焦炭形成和催化剂相互作用问题。

9. 发明授权

US5051152A Preparation of urethane prepolymers having low levels of residual toluene diisocyanate 失效
标题翻译：制备具有低残留甲苯二异氰酸酯含量的氨基甲酸酯预聚物
公开(公告)号：US5051152A
公开(公告)日：1991-09-24
申请号：US412953
申请日：1989-09-26
申请人： Albert J. Siuta , William E. Starner , Bernard A. Toseland , Reinaldo M. Machado
发明人： Albert J. Siuta , William E. Starner , Bernard A. Toseland , Reinaldo M. Machado
IPC分类号： C08G18/82 , B01D3/34 , C07C269/08 , C08G18/10 , C08G18/76
CPC分类号： C07C269/08 , C08G18/10 , C08G18/7621
摘要： A wiped film evaporation process for reducing the amount of residual toluene diisocyanate in a polyurethane prepolymer reaction product mixture. An inert sweeping gas is added to the evaporation process, preferably after first passing through a holdup volume of the prepolymer which has passed through the evaporation zone.

10. 发明授权

US4935557A Conitration of mixed aromatic hydrocarbons 失效
标题翻译：混合芳烃的混合
公开(公告)号：US4935557A
公开(公告)日：1990-06-19
申请号：US638437
申请日：1984-08-07
申请人： Richard V. Carr , Bernard A. Toseland
发明人： Richard V. Carr , Bernard A. Toseland
IPC分类号： C07C201/08 , C07C205/06
CPC分类号： C07C201/08
摘要： This invention relates to the preparation of a mixture of nitroaromatic compositions, particularly a mixture of mononitrobenzene and dinitrotoluene. The conitration of a mixture of aromatic hydrocarbons is accomplished by contacting the mixture of hydrocarbons with nitric acid, in the absence of sulfuric acid, at temperatures of from about 40.degree. to 70.degree. C. By the use of nitric acid alone, one avoids the heterogeneous nitration associated with the use of sulfuric acid and thereby one can effectively produce a reaction mixture containing mononitrobenzene and dinitrotoluene.
摘要翻译：本发明涉及硝基芳族组合物，特别是单硝基苯和二硝基甲苯的混合物的混合物的制备。芳族烃混合物的浓缩是通过在约40℃至70℃的温度下，在不存在硫酸的情况下将烃混合物与硝酸接触来实现的。通过单独使用硝酸，可以避免与使用硫酸相关的异种硝化，从而可以有效地产生含有单硝基苯和二硝基甲苯的反应混合物。

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