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发明授权
CN105247016B 润滑油基础油的制造方法 有权

润滑油基础油的制造方法
摘要：
本发明公开了一种润滑油基础油的制造方法，其具备如下工序：第1工序，对于被处理油进行13C-NMR分析，基于如下值选择被处理油，所得13C-NMR谱中的、归属于叔碳原子的峰的积分值除以0～50ppm的全部峰的积分值所得的值、归属于构成烃主链的碳原子的峰的积分值除以0～50ppm的全部峰的积分值所得的值、和归属于在烃主链中的自末端碳原子起第5号碳原子或位于第5号碳原子内侧的碳原子上键合的支链CH3的峰的积分值除以10～25ppm的全部峰的积分值所得的值；以及第2工序，将前述第1工序中选择的被处理油进行异构化脱蜡得到脱蜡油。
摘要（英）：

A method for producing a lubricating base oil, comprising: performing a 13C-NMR analysis regarding an oil to be treated and selecting the oil based on a value for dividing an integrated value of a peak for a tertiary carbon atom by an integrated value of all peaks at 0 to 50 ppm, a value for dividing an integrated value of a peak for a carbon atom constituting a main chain by the integrated value of all peaks at 0 to 50 ppm, and a value for dividing an integrated value of a peak for a branched CH3 bonded to a fifth or the following carbon atom from a terminal carbon atom in the main chain by an integrated value of all peaks at 10 to 25 ppm, and obtaining a dewaxed oil by isomerization dewaxing of the oil selected in the first step, is disclosed.

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