利用微型可视毛细管反应器测定物质在高温高压水中溶解度

Solubilities of inorganic salts and organic compounds in sub-and supercritical water in fused silica capillary reactor

目前无机盐和疏水性有机物在超/亚临界水中溶解度的研究虽已取得一定成果,但由于实验条件苛刻、设备要求高、操作难度大等问题,溶解度数据仍十分缺乏,无法满足现代工业应用要求,大大影响了超/亚临界流体技术在化学合成、萃取分离、环境工程等诸多领域的研究与开发进程,进一步确定高温高压水中物质的溶解度及其影响因素尚需要开展大量的基础研究工作.本文综述了无机盐和疏水性有机物在超/亚临界水中溶解度研究进展,并着重介绍了本课题组利用自行设计研发的耐高温高压微型可视毛细管反应器替代传统不锈钢材质高压反应釜或管式流反应器,结合显微放大观测技术、高精密冷热台、数字实时录像分析系统和拉曼光谱原位在线检测技术开展无机盐和疏水性有机物在超/亚临界水中溶解度研究工作取得的进展.

Some meaningful achievements have been made on the solubilities of inorganic salts and organic compounds in sub- and supercritical water. But the solubility data remain too scarce to meet the need of modem industry due to the harsh of experimental conditions, equipment requirements and experimental operations, which greatly affects the research and development processes of sub- and supercritical fluid technology in chemical synthesis, extraction and separation, environmental engineering and many other fields. Basic researches still need to be carried out to determine the solubility data and its influence factors of substances in sub- and supercritical water. This paper reviews the research advances of inorganic salts and organic compounds solubility in sub- and supercritical water. The developments of the solubilities of inorganic salts and organic compounds in sub- and supercritical water in fused silica capillary reactor, instead of the traditional stainless steel autoclave or tubular flow reactor, combined with microscopic observation, heating-cooling stage, real-time digital video and in-situ Raman designed by author＇s group are highlighted in this paper.