臺灣博碩士論文加值系統

摘 要
液體萃取為化工科系「單元操作實習」中之一主要單元，其萃取器多採用逆流多段式，早期設計上，常以甲苯為萃取溶劑，醋酸為溶質，水為稀釋劑，然甲苯毒性極強，現又為毒化物管制品，且冰醋酸腐蝕性太強又具刺激臭味；本研究發現液體萃取以水為萃取溶劑，乙醇為溶質，正己烷為稀釋劑，並以折射率測定萃取率，如此除可減少化學污染物外，更可使學生提昇學習興趣。

Abstract
Extraction is an important unit of the unit operation practice course at the chemical engineering departments. The extractor of countercurrent multi-stage was usually adopted by most schools. In the early, this extraction was worked to use toluene as an extract, acetic acid as a solute and water as a diluent. But it is well known that toluene is a strong toxic substance and acetic acid has strong corrosion and unpleasant odor. This study was found that the practice of extraction to use of water as an extract, ethanol as a solute, and n-hexane as a diluent and to measure the extracted ratio by using the refractive index was suitable for one unit of the unit operation practice course to enhance the learning interests of students without chemical pollutants.

目 錄
第一章 前言-----------------------------------------------1
1. 研究動機
1.1 技職教育的發展歷程-----------------------------1
1.2 技職體系一貫課程化工群發展規劃-----------------6
1.3 單元操作實習的課程架構------------------------15
1.4 教學與環保 ----------------------------------17
第二章 原理----------------------------------------------22
2.1 萃取原理--------------------------------------22
2.2 溶液的性質------------------------------------22
2.2.1 物質的溶解------------------------------23
2.2.2 非電解質之水溶液------------------------24
2.2.3 有機溶液--------------------------------25
2.3 三成分系平衡---------------------------------27
2.4 液-液平衡------------------------------------29
2.5 分配係數與選擇性-----------------------------32
2.6 溶解度---------------------------------------34
2.7 萃取溶劑的選擇-------------------------------39
2.8 萃取速率-------------------------------------41
2.9 萃取的操作方法-------------------------------43
第三章 實驗方法------------------------------------------48
3.1 實驗設備及藥品-------------------------------48
3.2 研究過程及方法-------------------------------49
3.3 計算範例-------------------------------------52
第四章 結果討論------------------------------------------54
4.1 「萃取相」管俓1/2吋，「萃餘相」管徑1/4吋----54
4.2 「萃取相」管徑1/2吋，「萃餘相」管徑1/2吋----57
第五章 結論----------------------------------------------60
第六章 參考文獻------------------------------------------62
第七章 附錄----------------------------------------------82
7.1 發表論文-------------------------------------82
7.2 自述-----------------------------------------83
7.3 各大專院校萃取實驗現況調查表格---------------85

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