本发明涉及一种用于制造包含式(1)的胺的液体添加剂的方法,其中该方法包括用选自直链​​或支链C8-C12烯烃的烯烃将苯基-α-萘胺烷基化以获得第一 包含式(1)的胺的粗产物; 从第一粗产物中蒸馏出未反应的烯烃,得到第二粗产物; 从第二粗产物中蒸馏出未反应的苯基-α-萘胺,得到液体添加剂。 本发明还涉及包含式(1)的胺和苯基-α-萘胺的液体添加剂,其中所述液体添加剂包含至少95wt%的式(1)的胺,并且其中所述的浓度 液体添加剂中的苯基-α-萘胺低于0.2重量%,优选低于0.1重量%。 本发明进一步涉及液体添加剂在润滑剂中的用途。 ......

  • 专利类型:

    发明专利

  • 申请/专利号:

    PCT/EP2024/056687

  • 申请日期:

    2024-03-13

  • 专利申请人:

    巴斯夫欧洲公司

  • 分类号:

    ["C10M133/12","C07C209/68","C07C211/58","C10N30/10","C10N30/00"]

  • 发明/设计人:

    SANCHEZ JIMENEZ, GRACIELADESANTIS, KEVIN J.SCHUSTER, THOMAS

  • 权利要求: Claims1. A method for manufacturing a liquid additive comprising an amine of the formula (1)where Ri is a linear or branched C8-C12 alkyl where the method comprises the steps of a) alkylating phenyl-alpha-naphthylamine with an olefin selected from linear or branched C8-C12 alkenes to obtain a first raw product comprising the amine of the formula (1); b) distilling off unreacted olefin from the first raw product to obtain a second raw product; and c) distilling off unreacted phenyl-alpha-naphthylamine from the second raw product to obtain the liquid additive.2. The method according to claim 1 where the liquid additive comprises at least 95 wt% of the amine of the formula (1).3. The method according to claim 1 or 2 where the liquid additive comprises the phenyl-alpha- naphthylamine, and the concentration of the phenyl-alpha-naphthylamine in the liquid additive is below 0.2 wt%, preferably below 0.1 wt%.4. The method according to any of the preceding claims where the olefin is selected from linear or branched Cg alkenes.5. The method according to any of the preceding claims where in step a) a molar ratio of the phenyl-alpha-naphthylamine to the olefin is used in the range from 1:0.8 to 1 :20, from 1 :1 to 1 :15, from 1 :2 to 1:10, from 1:3 to 1 :10, from 1:4 to 1 :10, or from 1:5 to 1 :10.6. The method according to any of the preceding claims where in step c) the second raw product is be heated in the sump to at least 100 °C at a vacuum of below 400 mbar.7. The method according to any of the preceding claims where in step c) the second raw product is be heated in the sump to at least 200 °C at a vacuum of below 100 mbar.8. The method according to any of the preceding claims further comprising a step d) recycling the distilled off unreacted olefin from the step b) in the alkylation of step a).9. The method according to any of the preceding claims, where the method is free of a crystallization step.10. The method according to any of the preceding claims where the liquid additive has a melting point of below 10 °C.11. The method according to any of the preceding claims where the liquid additive has a reduced aquatic toxicity.12. A liquid additive comprising- an amine of the formula (1)where Ri is a linear or branched C8-C12 alkyl, and- phenyl-alpha-naphthylamine, where the liquid additive comprises at least 95 wt% of the amine of the formula (1), and where the concentration of the phenyl-alpha-naphthylamine in the liquid additive is below 0.2 wt%, preferably below 0.1 wt%.13. The liquid additive according to claim 12 obtainable by the method for manufacturing as defined in any of claims 1 to 11.14. The liquid additive according to claims 12 or 13 where the liquid additive has a reduced aquatic toxicity.15. A use of the liquid additive as defined in any of claims 11 to 13 in lubricants.

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