超声波法分离油页岩中油母质与无机矿物质  

Separation of Kerogen and Inorganic Mineral in Oil Shale by Ultrasonic Method

作　　者：宋微娜[1] 董永利[1] 周国江[1] 

机构地区：[1]黑龙江科技学院现代分析测试研究中心,黑龙江哈尔滨150027

出　　处：《实验室研究与探索》2011年第11期18-21,共4页Research and Exploration In Laboratory

基　　金：黑龙江省青年科学基金项目(QC2010050)

摘　　要：采用不同浓度氢氟酸为去岩溶剂,研究了低温60℃水浴条件下超声波振荡5 h处理方法对中国依兰油页岩中油母质与无机矿物质的分离影响,利用X射线荧光光谱,X射线衍射,傅里叶变换红外光谱及扫描电子显微镜对各阶段实验样品进行了分析。结果表明,油页岩在浓度为40%氢氟酸中经过超声波处理可实现油母质与无机矿物质分离;油页岩中油母质主要为链状和环状饱和物质,无机矿物质主要有石英和高岭土及少量的伊利石、菱铁矿和黄铁矿,这些物质通过氢键或分子间力结合成均匀的岩层状结构;经过温和条件下的超声波处理,低酸度条件下高岭土和菱铁矿可被脱除,HF酸浓度较高时,伊利石和石英发生溶出反应,并得到疏松的、孔状结构的油母质。The effect of ultrasonic vibration treatment for 5 hours under low temperature 60℃ water-bath conditions on the separation of kerogen and inorganic mineral in China Yilan oil shale was studied in demineralization reagent of different concentration hydrofluoric acid and samples were analyzed by using technology of X-Ray Fluorescence Spectrometer, X- Ray Diffractometer, Fourier Transform IR Spectrometer and Scanning Electron Microscope. The results show that after being treated by ultrasonic in 40% HF acid,the kerogen and the inorganic mineral in the oil shale can be separated;the kerogen mainly consists of chainlike and cyclic saturated materials whereas the inorganic mineral mainly consists of quartz, kaolinite, a little of illite, siderite and pyrite. These materials integrate into uniform rock structure by way of hydrogen bond and intermolecular forces. After treating with ultrasonic vibration in mild condition, the kaolinite and siderite were removed in low acid concentration, illite and quartz have dissolution reaction in high concentration of hydrofluoric acid,and then the kerogen with loose and pore construction was obtained.

关 键 词：油页岩 超声波 油母质 无机矿物质 氢氟酸 

分 类 号：TQ519[化学工程]