Resource Recovery of Cutting Oil Containing Waste Silicon Mud
| Autor: | You-Shiang Lin, 林祐翔 |
|---|---|
| Rok vydání: | 2013 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 101 The main purpose of this study is to recycle silicon and silicon carbide from cutting oil and to refine the cutting oil for further reuse. “Cutting Oil containing Waste Silicon Mud” is obtained during the manufacturing process of Solar cells and was used in this study for the recovery of silicon, silicon carbide and refined cutting oil. For the objectives of this study to be accomplished the following methods were adopted: washing, component analysis, liquid-liquid separation, crystallization and purification. This study shows that the Cutting Oil containing Waste Silicon Mud exhibited a higher mud filtration rate after the dissolution of the silicon powder contained in the mud. Moreover, liquid-liquid separation resulted in a double layer separation with refined cutting oil forming the less dense layer. Characterization of the refined cutting oil determined the heating value of the refined oil to be 6.893kcal/g and was hence deduced that this refined oil can be reused as an auxiliary fuel. The denser layer contained the crystalline form of the impure sodium-silicate product. The solid remains from the solid-liquid filtration were treated with copper and iron impregnating agents with effectively removed 99% of copper and iron impurities. Purification of the silicon product was conducted in the silicon purification agent to yield high purity crystalline silicon-carbide. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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