ChemSusChem
10.1002/cssc.201802980
FULL PAPER
2 3
The durability of the Ru/Al O catalyst was examined in five consecutive
batch runs for the catalytic conversion of pyroglutamic acid at 433 K in 2
MPa H for 2 h. After a reaction run, the used catalyst was centrifuged
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and washed using 50 mL of deionized water for three times. The thus
recovered catalyst was dried at 383 K for 12 h and put into a new
reactant mixture for the next run.
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pyroglutaminol (0.026 mol L , 50 mL) and stirred for 1 h at room
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Keywords: Glutamic acid • 2-pyrrolidone • ruthenium •
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hydrogenation • pyroglutamic acid
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