摘要
建立了取样量小 ,操作方便 ,用热重法分析油包水型乳化液中含水量的方法。使用废润滑油乳化液样品进行试验 ,采用低升温速率 2℃ /min ,在质量变化微分曲线的最低点处读取数据 ,热重法分析结果与ASTMD12 3-92标准方法的分析结果非常吻合 ,最大相对误差小于 5 %。对比乳化液和油水简单混合物的热重法分析结果 ,还可得到乳化液类型和粒径分布等信息。
A method for determination of water in W/O emulsion by thermogravimetry (TG)is presented.It is easier to operate and needs much less sample than the standard method ASTM D123-92.But the results of these two methods fit very well.The maximum relative error is less than 5% for the W/O waste lubricating oil emulsion.In TG analysis,the heating rate is lower,2 ℃/min,and the result is obtained from the lowest point on the differential curve of weight loss.The TG anslysis results also provide information on the type of emulsion and distribution of droplet size.
出处
《石油化工》
CAS
CSCD
北大核心
2000年第7期526-529,共4页
Petrochemical Technology
关键词
热重分析
油包水乳化液
含水量
润滑油
thermogravimetry
W/O emulsion
water content
lubricating oil
