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199 条记录 (耗时 0.017 秒)

    Peroxidation of secondary carbon in alkanes and cycloalkanes
    13.
    发明授权
    Peroxidation of secondary carbon in alkanes and cycloalkanes 失效
    烷烃和环烷烃中二次碳的过氧化

    公开(公告)号：US5334771A

    公开(公告)日：1994-08-02

    申请号：US091780

    申请日：1993-07-14

    申请人： George Ember ,  Edilberto A. De Castro Netro ,  Rogerio F. De Lacerda

    发明人： George Ember ,  Edilberto A. De Castro Netro ,  Rogerio F. De Lacerda

    IPC分类号： C07C409/04 ,  C07C409/14 ,  C07C409/06 ,  C07C409/08

    CPC分类号： C07C409/14 ,  C07C407/00 ,  C07C407/003 ,  C07C409/04 ,  C07C2101/14

    摘要： A secondary carbon atom in an alkane, including alkyl groups attached to aromatic rings, or cycloalkane is peroxidized by molecular oxygen to the corresponding hydroperoxide in the absence of a catalyst. The peroxidation is carried out in the presence of a tertiary hydroperoxide initiator which provides the free radicals needed to maintain the reaction. The amount of tertiary alcohol in the initiator is limited. The initial product of the peroxidation contains the secondary hydroperoxide as well as unreacted hydrocarbon, unreacted tertiary hydroperoxide and tertiary alcohol. The tertiary alcohol is removed as an azeotrope with part of the unreacted hydrocarbon which may be then separated from the alcohol and recycled. A second azeotropic distillation follows where the unreacted tertiary hydroperoxide is removed as an azeotrope with the rest of the unreacted hydrocarbon. This azeotrope is directly recycled to the peroxidation reaction.

    摘要翻译： 在不存在催化剂的情况下，烷烃中的仲碳原子（包括连接到芳环上的烷基）或环烷烃通过分子氧过氧化成相应的氢过氧化物。 过氧化反应在叔氢过氧化物引发剂的存在下进行，其提供维持反应所需的自由基。 引发剂中叔醇的量受到限制。 过氧化物的初始产物含有次级过氧化氢以及未反应的烃，未反应的叔氢过氧化物和叔醇。 叔醇作为与部分未反应烃的共沸物除去，然后将其与醇分离并再循环。 进行第二次共沸蒸馏，其中未反应的叔氢过氧化物作为与其余未反应烃的共沸物除去。 这种共沸物直接再循环到过氧化反应中。

    Preparation of 2,5-dimethylhexane-2,5-dihydroperoxide and derivatives thereof
    14.
    发明授权
    Preparation of 2,5-dimethylhexane-2,5-dihydroperoxide and derivatives thereof 失效
    2,5-二甲基己烷-2,5-二氢过氧化物及其衍生物的制备

    公开(公告)号：US5210320A

    公开(公告)日：1993-05-11

    申请号：US930588

    申请日：1992-08-17

    申请人： Chung C. Tso ,  Joe W. Ryker

    发明人： Chung C. Tso ,  Joe W. Ryker

    IPC分类号： C07C409/04 ,  C07C409/16

    CPC分类号： C07C409/04 ,  C07C407/00 ,  C07C409/16

    摘要： A one-step process for preparing 2,5-dimethylhexane-2,5-dihydroperoxide and its alkyl derivatives comprises: (1) adding sulfuric acid to a 60-70% hydrogen peroxide solution to form a first reaction mixture where the first mixture is controlled at a temperature in the range of from about -10.degree. C. to about 10.degree. C.; (2) adding 2,5-dimethyl-2,5-dihydroxy hexane to the mixture held at a temperature in the range of from about -10.degree. C. to about 10.degree. C. or lower to form a second reaction mixture and maintaining the second mixture at a temperature in the range of from about 20.degree. C. to about 50.degree. C. for about 5 minutes to about 5 hours to form a slurry containing the solid product of 2,5-dimethylhexane-2,5-dihydroperoxide, unreacted reactants and impurities; (3) lowering the temperature of the slurry to the range of from about -10.degree. C. to about 10.degree. C.; (4) removing unreacted reactants and impurities from the solid product and optionally, washing the solid product; and (5) adding sulfated alkyl alcohol, which is prepared by adding the alkyl alcohol to sulfuric acid, to the solid product to form a third reaction mixture and maintaining the third mixture at about 30.degree. C. to about 60.degree. C. for about 1 to about 5 hours to prepare the alkyl derivatives.

    摘要翻译： 制备2,5-二甲基己烷-2,5-二氢过氧化物及其烷基衍生物的一步法包括：（1）向60-70％过氧化氢溶液中加入硫酸以形成第一反应混合物，其中第一混合物为 控制在约-10℃至约10℃的温度范围内。 （2）向保持在约-10℃至约10℃或更低温度范围的混合物中加入2,5-二甲基-2,5-二羟基己烷以形成第二反应混合物并保持 第二混合物在约20℃至约50℃的温度下进行约5分钟至约5小时，以形成含有2,5-二甲基己烷-2,5-二氢过氧化物的固体产物的浆液 ，未反应的反应物和杂质; （3）将浆料的温度降低至约-10℃至约10℃的范围。 （4）从固体产物中除去未反应的反应物和杂质，任选地洗涤固体产物; 和（5）将通过将烷基醇加入硫酸制备的硫酸化烷基醇加入到固体产物中以形成第三反应混合物并将第三混合物保持在约30℃至约60℃约约 1至约5小时以制备烷基衍生物。

    Manufacture of tertiary butyl alcohol
    19.
    发明授权
    Manufacture of tertiary butyl alcohol 失效
    制造叔丁醇

    公开(公告)号：US4296262A

    公开(公告)日：1981-10-20

    申请号：US124404

    申请日：1980-02-25

    申请人： Henry R. Grane ,  John C. Jubin, Jr. ,  G. Richard Worrell

    发明人： Henry R. Grane ,  John C. Jubin, Jr. ,  G. Richard Worrell

    IPC分类号： C07C29/132 ,  C07C29/50 ,  C07C29/80 ,  C07C409/04 ,  C10L1/02

    CPC分类号： C07C409/04 ,  C07C29/132 ,  C07C29/50 ,  C07C29/80 ,  C07C407/00 ,  C10L1/023

    摘要： Isobutane is injected into a liquid mixture concurrently with the injection of an oxygen-containing gas. Molybdenum catalyst is present. The oxidation is selective for the formation of tertiary butyl alcohol (TBA) so that the proportions of tertiary butyl hydroperoxide (TBHP), acetone, methanol, carbon dioxide or other less desirable products are relatively low. The tertiary butyl hydroperoxide produced by the reaction and/or the di-tertiary butyl peroxide in the reaction mixture remain in the reaction mixture while continuously distilling a product stream rich in tertiary butyl alcohol and those components boiling below TBA. After appropriate processing, such product stream is utilized as a blending component for gasoline.

    摘要翻译： 异丁烷与注入含氧气体同时注入液体混合物。 存在钼催化剂。 氧化对于形成叔丁醇（TBA）是有选择性的，使得叔丁基过氧化氢（TBHP），丙酮，甲醇，二氧化碳或其它不理想的产物的比例相对较低。 在反应混合物中通过反应生成的叔丁基过氧化氢和/或二叔丁基过氧化物残留在反应混合物中，同时连续蒸馏富含叔丁醇的产物流和沸点低于TBA的组分。 经过适当的处理，这种产品流被用作汽油的混合组分。

    Preparing oxygen-containing fuel wherein tertiary butyl alcohol is the major product of the process
    20.
    发明授权
    Preparing oxygen-containing fuel wherein tertiary butyl alcohol is the major product of the process 失效
    制备含氧燃料，其中叔丁醇是该方法的主要产物

    公开(公告)号：US4294999A

    公开(公告)日：1981-10-13

    申请号：US124035

    申请日：1980-02-25

    申请人： Henry R. Grane ,  John C. Jubin, Jr. ,  G. Richard Worrell

    发明人： Henry R. Grane ,  John C. Jubin, Jr. ,  G. Richard Worrell

    IPC分类号： C07C409/04 ,  C10L1/02 ,  C07C29/50

    CPC分类号： C07C409/04 ,  C07C29/00 ,  C07C407/00 ,  C10L1/02

    摘要： Isobutane is oxidized in a pressurized reactor in the presence of a solubilized molybdenum catalyst to produce a mixture of tertiary butyl alcohol, tertiary butyl hydroperoxide, methanol, acetone, and other oxygen containing compounds. Unreacted isobutane is recycled. Streams of normally gaseous components, comprising carbon dioxide and carbon monoxide are withdrawn from the effluent streams. A liquid stream withdrawn from the reactor, after being debutanized, is subjected to a thermal decomposition zone under several atmospheres pressure at about 280.degree. F. for from 2 to about 8 hours to reduce the concentration of tertiary butyl hydroperoxide.The liquid derived from the decomposition zone is distilled to provide a distillate stream comprising predominantly tertiary butyl alcohol and a minor proportion of methanol. Said distillate stream is heat treated to destroy residual TBHP and then transferred to a gasoline blending zone in which it is added to hydrocarbons. Said oxygen-containing fuel is blended as if it were a technical grade of tertiary butyl alcohol, notwithstanding the fact that measurable amounts of acetone, methanol, and/or related oxygen containing compounds might be present.

    摘要翻译： 在加溶的钼催化剂存在下，异丁烷在加压反应器中氧化，生成叔丁醇，叔丁基过氧化氢，甲醇，丙酮和其它含氧化合物的混合物。 未反应的异丁烷被回收。 从流出物流中排出包含二氧化碳和一氧化碳的通常气态成分的物流。 在脱氧化后从反应器中取出的液体物流在约280°F的几个大气压下经受热分解区域2至约8小时以降低叔丁基过氧化氢的浓度。 将来自分解区的液体蒸馏以提供主要包含叔丁醇和少部分甲醇的馏出物流。 所述馏出物流被热处理以破坏剩余的TBHP，然后转移到汽油混合区中，将其加入到烃中。 所述含氧燃料如同是叔丁醇的工业级一样被混合，尽管可能存在测量量的丙酮，甲醇和/或相关的含氧化合物。