Removal of H.sub.2 S hydrocarbon liquid
    53.
    发明授权
    Removal of H.sub.2 S hydrocarbon liquid 失效
    去除H2S烃液体

    公开(公告)号:US5354453A

    公开(公告)日:1994-10-11

    申请号:US48358

    申请日:1993-04-13

    Applicant: Kishan Bhatia

    Inventor: Kishan Bhatia

    CPC classification number: C10L1/232

    Abstract: Reactive S (e.g. H.sub.2 S and mercaptans) in petroleum liquid are scavenged by the use of oil soluble trialkyl hexahydro triazines wherein at least one alkyl group, and preferably all three, contain from 7 to 20 carbon atoms.

    Abstract translation: 通过使用油溶性三烷基六氢三嗪来清除石油液体中的活性S(例如H 2 S和硫醇),其中至少一个烷基,优选全部三个含有7至20个碳原子。

    Fuel oil compositions
    54.
    发明授权
    Fuel oil compositions 失效
    燃油组成

    公开(公告)号:US5348561A

    公开(公告)日:1994-09-20

    申请号:US53936

    申请日:1993-04-26

    CPC classification number: C10L1/2222 C10L1/232 C10L1/2412 C10L1/2437

    Abstract: Sediment and color formation in distillate fuels are reduced by the addition of a quaternary ammonium compound comprising a cation in which the ratio of carbon atoms to quaternary nitrogen atoms is not more than 10:1 and an anion which is derived from an acid which is a carboxylic acid, carboxylic acid anhydride, phenol, sulphurized phenol or sulphonic acid.

    Abstract translation: 通过添加包含其中碳原子数与季氮原子之比不大于10:1的阳离子的季铵化合物和衍生自酸的酸的阴离子来减少馏出物燃料中的沉淀物和颜色的形成 羧酸,羧酸酐,苯酚,硫化苯酚或磺酸。

    Hexahydropyrimidine derivatives
    60.
    发明授权
    Hexahydropyrimidine derivatives 失效
    六氢嘧啶衍生物

    公开(公告)号:US5106975A

    公开(公告)日:1992-04-21

    申请号:US438164

    申请日:1989-11-20

    Abstract: When a phenol having substituents in at least the 2- and 4-positions but having a hydrogen atom in the 6-position, or a phenol having substituents in at least the 2- and 6-positions but having a hydrogen atom in the 4-position is reacted with formaldehyde and 1,3-propanediamine, a unique insertion-condensation reaction occurs whereby the product is a hexahydropyrimidine derivative which may be represented by the general formula ##STR1## wherein R.sub.1 is (i) a 2-hydroxybenzyl group having an inert substituent (preferably a hydrocarbyl substituent) in at least the 3- and 5-positions or (ii) a 4-hydroxybenzyl group having an inert substituent (preferably a hydrocarbyl substituent) in at least the 3- and 5-positions; and R.sub.2 is (i) a 2-hydroxybenzyl group having an inert substituent (preferably a hydrocarbyl substituent) in at least the 3- and 5-positions or (ii) a 4-hydroxybenzyl group having an inert substituent (preferably a hydrocarbyl substituent) in at least the 3- and 5-positions or (iii) a hydrogen atom. Uses for such compounds include their use as antioxidants and stabilizers for various substrates, such as fuels, lubricants, and functional fluids.

    Abstract translation: 当在至少2位和4位具有取代基但在6位具有氢原子的苯酚或在至少2位和6位具有取代基但在4-位具有氢原子的苯酚时, 位置与甲醛和1,3-丙二胺反应,发生独特的插入缩合反应,由此产物是六氢嘧啶衍生物,其可以由通式(I)表示,其中R 1是(ⅰ)2-羟基苄基 在至少3-和5-位具有惰性取代基(优选烃基取代基)的基团或(ii)在至少3-和5-位具有惰性取代基(优选烃基取代基)的4-羟基苄基 ; 并且R 2是(i)在至少3-和5-位具有惰性取代基(优选烃基取代基)的2-羟基苄基或(ii)具有惰性取代基(优选烃基取代基)的4-羟基苄基, 至少在3-和5-位,或(iii)氢原子。 这些化合物的用途包括它们作为抗氧化剂和用于各种底物的稳定剂,例如燃料,润滑剂和功能性流体。

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