Cyclohexlamines used as fuel additives
    11.
    发明授权
    Cyclohexlamines used as fuel additives 失效
    环己胺用作燃料添加剂

    公开(公告)号:US4040799A

    公开(公告)日:1977-08-09

    申请号:US512424

    申请日:1974-10-07

    IPC分类号: C10L1/222 C10L1/22

    CPC分类号: C10L1/2222

    摘要: This invention relates to the reductive amination of unsaturated cyclic ketones; to cyclic amines prepared thereby; and to uses thereof. For example, when isophorone is reductively aminated, trimethyl cyclohexylamines and cyclohexenamines are obtained. This invention also relates to uses thereof, for example, as fuel additives, particularly for stabilizing distillate fuels.

    摘要翻译: 本发明涉及不饱和环酮的还原胺化; 由此制备的环胺; 并使用它们。 例如,当异佛尔酮被还原胺化时,得到三甲基环己胺和环己烯胺。 本发明还涉及其用途,例如作为燃料添加剂,特别是用于稳定馏出燃料。

    Thiophosphates
    12.
    发明授权
    Thiophosphates 失效
    硫代磷酸酯

    公开(公告)号:US3957925A

    公开(公告)日:1976-05-18

    申请号:US165336

    申请日:1971-07-22

    IPC分类号: C07D339/04 C07F9/173 C07F9/16

    CPC分类号: C07D339/04 C07F9/173

    摘要: Thiophosphates of the formula ##EQU1## where X is O or S, R is a hydrocarbon or a substituted hydrocarbon group such as alkyl, aryl, cycloalkyl, alkaryl, aralkyl, etc., and R' is a 3-thione-propene-1 or a substituted 3-thione-propene-1 group; the preparation thereof by reacting a 1,2-dithiolium compound with a phosphite ester; the reversion to the original dithionium compound is effected by reacting the thiophosphate under acid conditions; and the uses of such thiophosphates as corrosion inhibitors in acid systems.

    Process of reverting thiophosphates
    13.
    发明授权
    Process of reverting thiophosphates 失效
    回收硫代磷酸盐的工艺

    公开(公告)号:US3935215A

    公开(公告)日:1976-01-27

    申请号:US374992

    申请日:1973-06-29

    IPC分类号: C07F9/173 C07D339/04

    摘要: Thiophosphates of the formula ##EQU1## where X is 0 or S, R is a hydrocarbon or a substituted hydrocarbon group such as alkyl, aryl, cycloalkyl, alkaryl, aralkyl, etc., and R' is a 3-thione-propene-1 or a substituted 3-thione-propene-1 group; the preparation thereof by reacting a 1,2-dithiolium compound with a phosphite ester; the reversion to the original dithionium compound is effected by reacting the thiophosphate under acid conditions; and the uses of such thiophosphates as corrosion inhibitors in acid systems.

    摘要翻译: 式X的二硫代磷酸酯(RX)2P-SR',其中X为0或S,R为烃或取代的烃基如烷基,芳基,环烷基,烷芳基,芳烷基等,R'为3 - 硫酮 - 丙烯-1或取代的3-硫酮 - 丙烯-1-基; 其通过1,2-二硫鎓鎓化合物与亚磷酸酯反应制备; 通过在酸性条件下使硫代磷酸酯反应来实现对原始的二硫化钛化合物的反转; 以及这些硫代磷酸盐在酸性体系中作为腐蚀抑制剂的用途。

    Corrosion inhibition in highly acidic environments by use of pyridine
salts in combination with certain cationic surfactants
    14.
    发明授权
    Corrosion inhibition in highly acidic environments by use of pyridine salts in combination with certain cationic surfactants 失效
    通过使用吡啶盐与某些阳离子表面活性剂的组合,在高酸性环境中的腐蚀抑制

    公开(公告)号:US5336441A

    公开(公告)日:1994-08-09

    申请号:US706661

    申请日:1991-05-29

    IPC分类号: C10G7/10 C23F11/04 C23F11/14

    摘要: A method for inhibiting corrosion of ferrous surfaces in an acidic, aqueous medium is disclosed. The method comprises incorporating into the medium a corrosion-inhibiting amount of a pyridine salt composition (comprising a quaternary pyridine salt composition and/or a pyridine.HCL salt composition) and a cationic surfactant that forms a bilayer on the ferrous surfaces in the medium. Highly quaternized pyridine salt compositions useful in such method and a method for preparation of such compositions are also disclosed.

    摘要翻译: 公开了一种在酸性水性介质中抑制铁表面腐蚀的方法。 该方法包括向培养基中加入腐蚀抑制量的吡啶盐组合物(包括季吡啶盐组合物和/或吡啶HCL盐组合物)和阳离子表面活性剂,其在介质中的铁表面上形成双层。 还公开了可用于这种方法的高度季铵化的吡啶盐组合物和这种组合物的制备方法。

    .DELTA.-2 Tetrahydropyrimidines as corrosion inhibitors
    18.
    发明授权
    .DELTA.-2 Tetrahydropyrimidines as corrosion inhibitors 失效
    DELTA -2四氢嘧啶作为缓蚀剂

    公开(公告)号:US4212843A

    公开(公告)日:1980-07-15

    申请号:US942733

    申请日:1978-09-15

    IPC分类号: C23F11/14 C23F11/04 C23F11/12

    CPC分类号: C23F11/149

    摘要: A process of converting 2,3,4,5-tetrahydropyrimidines (.DELTA.-1) having at least one hydrogen in the 2-position to 3,4,5,6-tetrahydropyrimidines (.DELTA.-2) which comprises hydrogenating and dehydrogenating said .DELTA.-1 tetrahydropyrimidines. Such hydrogenating and dehydrogenating may be done in either two sequential steps or in one step.Said .DELTA.-1 tetrahydropyrimidines can also be converted to .DELTA.-2 tetrahydropyrimidines by heating in the essential absence of a solvent, and preferably under basic conditions.In addition, corresponding hexahydropyrimidimidines can be converted to corresponding .DELTA.-2 tetrahydropyrimidines by dehydrogenation.This invention also relates to the use of .DELTA.-2 tetrahydropyrimidines, particularly as corrosion inhibitors.

    摘要翻译: 将具有2位至少一个氢的2,3,4,5-四氢嘧啶(DELTA-1)转化为3,4,5,6-四氢嘧啶(DELTA-2)的方法,其包括使所述DELTA -1四氢嘧啶。 这种氢化和脱氢可以在两个连续的步骤中或在一个步骤中完成。 所述DELTA -1四氢嘧啶也可以通过在基本不存在溶剂的条件下加热而优选在碱性条件下进行转化为DELTA-2四氢嘧啶。 此外,相应的六氢嘧啶亚胺可以通过脱氢转化为相应的DELTA -2四氢嘧啶。 本发明还涉及DELTA -2四氢嘧啶的用途,特别是作为缓蚀剂。