摘要
植物油基润滑油具有良好的润滑性能和可生物降解的优点,是可持续生产的绿色润滑油。今以菜籽油为原料、双氧水和乙酸为氧化剂,采用固体酸——CD-450强酸性阳离子交换树脂为催化剂,对菜籽油进行环氧化,从而制取环氧化菜籽油,即菜籽油润滑油。研究了固体酸的催化性能,实验考察了反应温度、反应时间、催化剂用量等因素对菜籽油环氧化反应的影响规律,并分别通过红外光谱和盐酸-丙酮法对菜籽油环氧化产物进行定性和定量分析,证明了目标产物的存在,定量确定了环氧化产物的环氧值。实验对CD-450强酸性阳离子交换树脂和浓硫酸的催化性能进行了比较,同时也考察了阳离子树脂的再生利用性能。研究结果表明强酸性阳离子交换树脂可以用作催化剂进行菜籽油环氧化生产润滑油基础油,该制备方法因无强矿物酸排放、是环境友好型的绿色生产工艺,具有实际应用价值。
Lubricant base oil produced from renewable raw materials, such as plant seed oils, is an environmental friendly lubricant with good lubricity and biodegradability. In this paper, the lubricant base oil discussed was prepared through the epoxidation of rapeseed oil by using hydrogen peroxide and acetic acid as epoxidizing agent and solid acid, cationic ion-exchange resin （CD-450）, as catalyst. The catalytic property of CD-450 and the effects of epoxidation temperature, reaction time, the amount of catalyst used, etc. on the epoxy reaction were studied. IR spectroscopy was used to characterize the epoxidized rapeseed oil, and the hydrochloric acid-acetone method was applied to determine the epoxy number of the epoxidation product. The catalytic effect of CD-450 was compared with that of concentrated sulfuric acid, and the reusability of the resin catalyst CD-450 was also studied. It could be concluded that the cationic ion-exchange resin CD-450 is proper to be used as solid acid catalyst to catalyze the epoxidation of rapeseed oil for preparing lubricant base oil. The proposed lubricant base oil preparing process is an environmental friendly process because of no emission of strong mineral acid.
出处
《高校化学工程学报》
EI
CAS
CSCD
北大核心
2009年第1期116-121,共6页
Journal of Chemical Engineering of Chinese Universities
关键词
环氧化
菜籽油
阳离子树脂
可生物降解润滑油
基础油
epoxy
rapeseed oil
cationic ion-exchange resins
biodegradable-lubricants
base oil
