| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an efficient method for recycling a liquid crystal panel, in which a liquid crystal material is separated from the liquid crystal panel without being deteriorated/decomposed by optimizing the treatment temperature and the concentration of a chemical as subcritical water treatment conditions and the separated liquid crystal material is recovered. <P>SOLUTION: The method for recycling the liquid crystal panel comprises the steps of: mixing water with the chemical for improving at least one of peelability of the liquid crystal material and an organic film from the liquid crystal panel, decomposability of the liquid crystal material and the organic film, and solubility of the liquid crystal material and the organic film to adjust the concentration of the chemical; keeping a mixture of the chemical with water in a subcritical state and subjecting the liquid crystal panel to the first-stage subcritical water treatment; recovering the liquid crystal material peeled from the liquid crystal panel; again keeping the mixture of the chemical with water in the subcritical state and subjecting the liquid crystal panel to the second-stage subcritical water treatment; and recovering at least one of the glass, metal and organic film peeled from the liquid crystal panel. <P>COPYRIGHT: (C)2013,JPO&INPIT |
