潤滑油粘度指数の問題
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各種潤滑油の粘度指数は、水素化後にどのような変化を示しますか？ 潤滑油のベースオイルは水素化精製後の粘度指数が比較的低いが、さらに異性化処理を施した場合、粘度指数はどのように変化するだろうか？
水素化後の粘度指数は上昇すべきであり、異性化後の粘度指数は脱蝋油の粘度指数よりわずかに上昇するが、原料油の粘度指数よりは低下する。
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