摘要
采用ASTM D4636标准方法对俄制50-1-4Ф航空润滑油进行高温氧化试验,针对润滑油氧化颜色发红问题,创新性地采用甲醇/水溶液萃取生色物质,并采用气相色谱-质谱联用方法研究了萃取物的化学组成。结果表明:抗氧剂N-苯基-1-萘胺是造成50-1-4Ф航空润滑油颜色发红的关键因素;甲醇/水溶液对酯类油生色物质的萃取富集具有极好的效果;生色物质主要包括抗氧剂自身及1-乙酰基-3-(6-甲基-3-吡啶基)-吡唑啉、邻苯二甲酸二丁酯、邻苯二甲酸二十二烷基酯等复杂衍生物。
In this paper,the high temperature oxidation experiment of Russian-made 50-1-4Фaviation lubricating oil was carried out according to ASTM D4636 standard method.The color redness problem of lubricating oil due to oxidation was investigated by an innovative extracting method with aqueous methanol solution and gas chromatography-mass spectrometry(GC-MS).The chromogenic substances were analyzed.The results showed that the antioxidant T531 was the key factor causing the color redness of the 50-1-4Фaviation lubricating oil.The chromophores mainly included the antioxidants themselves and the complex derivatives,such as 1-acetyl-3-(6-methyl-3-pyridinyl)-pyrazoline,dibutyl phthalate,and dialkyl phthalate.It is proved that the aqueous methanol solution has an excellent effect on the extraction and enrichment of chromogenic materials in ester oil.
作者
阮少军
费逸伟
姜旭峰
彭显才
李松鹤
Ruan Shaojun;Fei Yiwei;Jiang Xufeng;Peng Xiancai;Li Songhe(Academy of Quartermaster and Fuel Corps of Air Force of the PLA,Xuzhou,Jiangsu 221000;The PLA of 95788 Troops;The PLA of 95958 Troops)
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2020年第2期76-80,共5页
Petroleum Processing and Petrochemicals
基金
国家自然科学基金资助项目(51705530)
关键词
航空润滑油
萃取富集
氧化
生色物质
aviation lubricating oil
extraction and enrichment
oxidation
chromogenic substance
