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8 条记录 (耗时 0.017 秒)

    Otto cycle engine fuels containing derivatives of cyclic polycarboxylic acids
    4.
    发明授权
    Otto cycle engine fuels containing derivatives of cyclic polycarboxylic acids 失效
    奥托循环包含环状多元羧酸衍生物的发动机燃料

    公开(公告)号：US4004894A

    公开(公告)日：1977-01-25

    申请号：US563051

    申请日：1975-03-28

    申请人： Heinz Nohe ,  Ernst Guenther Nottes

    发明人： Heinz Nohe ,  Ernst Guenther Nottes

    IPC分类号： C10L1/19 ,  C10L1/224 ,  F02B1/04 ,  C10L1/22

    CPC分类号： C10L1/1905 ,  C10L1/224 ,  F02B1/04

    摘要： Otto cycle engine fuels, for example gasoline, can be improved to such an extent by additives that no deposits or residues form in the carburetor or on the valves. In accordance with the invention esters, amides or imides of hydroaromatic polycarboxylic acids are added which are very effective in cleaning the carburetor and the valves.

    摘要翻译： 奥托循环发动机燃料，例如汽油，可通过在化油器或阀门上形成沉积物或残留物的添加剂来改善。 根据本发明，添加了水解芳族多元羧酸的酯，酰胺或酰亚胺，其在清洁化油器和阀时非常有效。

    Process for the preparation of storage-stable alkylene glycol monoalkyl ethers
    5.
    发明授权
    Process for the preparation of storage-stable alkylene glycol monoalkyl ethers 失效
    用于制备储存稳定的亚烷基二醇单烷基醚的方法

    公开(公告)号：US4490214A

    公开(公告)日：1984-12-25

    申请号：US392088

    申请日：1982-06-25

    申请人： Horst G. Bosche ,  Heinz Nohe ,  Heinz Pachaly

    发明人： Horst G. Bosche ,  Heinz Nohe ,  Heinz Pachaly

    IPC分类号： C07C41/46 ,  B01D3/34 ,  C07C41/42

    CPC分类号： C07C41/46

    摘要： The subject invention relates to the preparation of storage-stable alkylene glycol monoalkyl ethers having the general formulaR--(O--A--).sub.n OHin which A represents an ethylene or propylene group, R denotes a C.sub.1 -C.sub.4 -alkyl group, and n has a value of 1 to 4. They are prepared by carrying out the fractional distillation of a mixture which is produced by the alkali catalyzed reaction of ethylene oxide or propylene oxide with an alcohol in the presence of 0.1 to 20 ppm of ammonia based on the amount of the mixture.

    摘要翻译： 本发明涉及具有通式R-（OA-）nOH的储存稳定的亚烷基二醇单烷基醚的制备，其中A代表乙烯或丙烯基，R表示C 1 -C 4 - 烷基，n具有 其值为1至4.它们通过在0.1至20ppm氨的存在下，通过环氧乙烷或环氧丙烷与醇的碱催化反应产生的混合物进行分馏来制备， 混合物。

    Manufacture of bicyclo[2,2,2]oct-7-ene 2,3,5,6-tetracarboxylic acid dianhydride
    8.
    发明授权
    Manufacture of bicyclo[2,2,2]oct-7-ene 2,3,5,6-tetracarboxylic acid dianhydride 失效
    制备双环{8,2,2 {9辛-7-烯2,3,5,6-四羧酸二酐

    公开(公告)号：US4086250A

    公开(公告)日：1978-04-25

    申请号：US743516

    申请日：1976-11-19

    申请人： Heinz Nohe ,  Heinz Hannebaum

    发明人： Heinz Nohe ,  Heinz Hannebaum

    IPC分类号： C07D307/93 ,  C07D20060101 ,  C07D307/77 ,  C07D493/04

    CPC分类号： C07C51/567

    摘要： Bicyclo[2,2,2]oct-7-ene-2,3,5,6-tetracarboxylic acid dianhydride is manufactured by reacting 3,5-cyclohexadiene-1,2-trans-dicarboxylic acid with maleic acid in the presence of anhydrides of low molecular weight alkanecarboxylic acids at from 50.degree. to 150.degree. C. The 3,5-cyclohexadiene-1,2-trans-dicarboxylic acid, in the anhydride of the low molecular weight alkanecarboxylic acid, and in the presence of water-soluble salts of the alkali metals, of the alkaline earth metals or of zinc, manganese or iron, in which salts the anion contains oxygen, is first heated to the reaction temperature and the maleic anhydride is then added.

    摘要翻译： 双环[2,2,2]辛-7-烯-2,3,5,6-四羧酸二酐是通过使3,5-环己二烯-1,2-反式二羧酸与马来酸在 低分子量链烷羧酸的酸酐在50-150℃。3,5-环己二烯-1,2-反式二羧酸在低分子量链烷羧酸的酸酐中，在水 - 首先将碱金属，碱土金属或锌，锰或铁（其中阴离子含有氧的盐）的可溶性盐加热至反应温度，然后加入马来酸酐。