| 摘要 |
A hydrogenation catalyst and a process for hydrogenating an unsaturated polymer comprising contacting the unsaturated polymer with a hydrogenating agent in the presence of a mixed hydrogenation catalyst, characterized in that the mixed hydrogenation catalyst comprises a Group VIII metal component and at least one component selected from the group consisting of a rhenium, molybdenum, tungsten, tantalum and niobium component.
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