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    Carbamates, their production and use as fuels additives
    41.
    发明授权
    Carbamates, their production and use as fuels additives 失效
    氨基甲酸酯，其生产和用作燃料添加剂

    公开(公告)号：US5286265A

    公开(公告)日：1994-02-15

    申请号：US868485

    申请日：1992-04-14

    Applicant: Richard A'Court ,  William J. Fox ,  John E. Hamlin ,  Sean P. O'Connor

    Inventor： Richard A'Court ,  William J. Fox ,  John E. Hamlin ,  Sean P. O'Connor

    IPC: C07D295/12 ,  B01J31/02 ,  C07B61/00 ,  C07C67/00 ,  C07C239/00 ,  C07C269/04 ,  C07C271/12 ,  C07C271/16 ,  C07D211/14 ,  C10L1/22 ,  C10L1/224 ,  C10L1/232 ,  C10L1/233 ,  C11D1/10

    CPC classification number: C10L1/224 ,  C10L1/232 ,  C10L1/2335

    Abstract: The invention relates to an internal combustion fuel concentrate comprising: (a) from 1 to 95% of a chlorine-free carbamate prepared by reacting a carbamate of formula ##STR1## with a compound of the formula R OH (VI) in the presence of either a strone organic base or a tetra hydrocarbyl titanate so as to exchange the group R in formula (I) with a group R.sup.1 in formula (II), and (b) a fuel compatible solvent therefor. In the formula (I) R is a hydrocarbyl or substituted hydrocarbyl group and R.sup.1 is a hydrocarbyl or a hetero-substituted hydrocarbyl group different from R. In formula (I), X and Y are independently any of hydrogen, a hydrocarbyl group, or the group of the formula ##STR2## where Z is either a divalent hydrocarbyl, a substituted hydrocarbyl group or the group of formula(alkylene).sub.m (NH.sub.n (alkylene).sub.m (III)in which n=0 to 4 and m=1 to 4, and R is hydrocarbyl a substituted hydrocarbyl, provided that if either one of X or Y is the group of formula (II), the other of X or Y is hydrogen.

    Abstract translation: 本发明涉及一种内燃燃料浓缩物，其包含：（a）通过使式（* CHEMICAL STRUCTURE *）（I）的氨基甲酸酯与式R OH的化合物（I）反应制备的1-95％的无氯氨基甲酸酯 VI）在有条件的有机碱或四烃基钛酸酯的存在下，以使式（I）中的基团R与式（II）中的基团R 1交换，和（b）与其相容的燃料相容性溶剂。 在式（I）中，R是烃基或取代的烃基，R 1是与R不同的烃基或杂取代的烃基。在式（I）中，X和Y独立地是氢，烃基或 其中Z是二价烃基，取代的烃基或式（亚烷基）m（NH，（亚烷基）m（III）的基团，其中n = 0〜 4和m = 1至4，并且R是烃基取代的烃基，条件是如果X或Y中的任一个是式（II）的基团，则X或Y中的另一个是氢。

    Suppression of the evolution of hydrogen sulfide gases
    44.
    发明授权
    Suppression of the evolution of hydrogen sulfide gases 失效
    抑制硫化氢气体的演化

    公开(公告)号：US5074991A

    公开(公告)日：1991-12-24

    申请号：US525796

    申请日：1990-05-18

    Applicant: Jerry J. Weers

    Inventor： Jerry J. Weers

    IPC: C09K8/54 ,  C10G29/20 ,  C10L1/222 ,  C10L1/232 ,  C10L1/233 ,  C10L1/24

    CPC classification number: C10L10/02 ,  C09K8/54 ,  C10G29/20 ,  C10L1/2222 ,  C10L1/2225 ,  C10L1/232 ,  C10L1/2335 ,  C10L1/24

    Abstract: Hydrogen sulfide gas evolution from water or hydrocarbons, especially during storage or transport of petroleum residua is suppressed by the incorporation of an effective amount of a diamine of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are independently an alky radical containing 1 to 14 carbon atoms, (CH.sub.2).sub.n --OR.sub.6 or cycloalkyl containing 5 or 6 carbon atoms and R.sub.5 is hydrogen or methyl. R.sub.1 and R.sub.2 and R.sub.3 and R.sub.4 can be alkylene groups joined together with their respective adjacent N to form a heterocyclic ring. R.sub.6 is hydrogen or an alkyl radical having 1 to 5 carbon atoms and n is an integer of 1 to 5.

    Abstract translation: 通过加入有效量的下式的二胺（其中R 1，R 2，R 3和R 4独立地是含有烷基的烷基），抑制了从石油渣中储存或运输过程中特别是在石油渣中储存或运输的硫化氢气体， 1至14个碳原子，（CH 2）n -OR 6或含有5或6个碳原子的环烷基，R 5是氢或甲基。 R 1和R 2以及R 3和R 4可以是与各自相邻的N连接在一起的亚烷基，以形成杂环。 R6为氢或碳原子数为1〜5的烷基，n为1〜5的整数。

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