| 摘要 |
PURPOSE:To accomplish the titled reclamation by hydrogenation treatment, using a transition metal-based hydrogenation catalyst, of solvent used in Ziegler- type polymerization to effect efficient deactivation of the polymerization- inhibiting substances accumulated in the polymerization solvent. CONSTITUTION:A solvent used in Ziegler-type polymerization (e.g., benzene, xylene, 4-20C paraffin) is scrubbed ar distilled if needed, followed by hydrogena tion treatment of the solvent using a transition metal-based hydrogenation catalyst (e.g., titanium trichloride, alkoxyoxyvanadium halide), normally at room temperature-100 deg.C under a hydrogen-pressurized condition of 3-9kgf/cm<2>, thus accomplishing the objective reclamation.
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