石蜡的溶蚀特征及其产物的红外光谱分析

针对非原油生产中石蜡从使用对象及其表面清除的问题，通过测定石蜡在几种常见试剂中的失重率、清蜡速度和溶解度等，研究了石蜡的溶蚀特征，并采用红外吸收光谱对溶蚀产物进行分析，结果表明：石蜡对香蕉水、丙酮等具有较强的抵御能力，并具有优良的抗酸、碱腐蚀性能；汽油、松香水、乙醚等三种试剂对石蜡都有较好的溶蚀效果，其溶解速度在第一小时内最快，之后变慢，9h后逐渐达到饱和；它们的清蜡速度分别是1.0、0.9、2.9mg/(ml·min)，溶解度分别是11.8、9.4、6.0，二者并没有呈现正相关关系；红外吸收光谱分析结果表明，三种试剂的溶蚀产物都是由石蜡和复杂含氧化合物组成，其中，松香水和乙醚两种试剂的溶蚀产物以石蜡为主，而汽油溶蚀产物以复杂含氧化合物为主；另外，溶蚀产物中复杂含氧化合物的熔点低于石蜡。

Paraffin′s Dissolution Characteristics and the Infrared Spectroscopy Analysis of It′s Dissolution Products

In order to solve the question how to clean paraffin from using objects and the surface,the paraffin dissolution characteristics are studied by measuring weight loss rate,paraffin removal rate and solubility,the dissolution products are also discussed with infrared spectroscopy.The paraffin has the performance to resist acetone and the banana oil,and also has excellent anti acid alkali performance;All of the gasoline,rosin water and ether have better dissolution effect,their dissolving speed is very fast in the first hour and then it slows down,the solution reaches the saturation gradually after 9 hours;Their paraffin removal rate (mg/ml·min) are 1.0,0.9,2.9,and the solubility(g) are 11.8,9.4,6.0 respectively.The relationship between them doesn't show a positive correlation;According to infrared spectroscopy,all of the dissolution products are made of paraffin and the complex oxygenated compounds,the dissolution products of the rosin water and ether are mainly consisted of paraffin,while the dissolution product of gasoline is mainly consisted of oxygenated compounds;Also,the melting point of oxygenated compounds in dissolution product is lower than that in paraffin.