发明授权
US06888006B2 Method for processing pyrollidone and n-vinyl pyrollidone residues 有权
吡咯烷酮和正乙烯基吡咯烷酮残留物的处理方法

Method for processing pyrollidone and n-vinyl pyrollidone residues
摘要:
A process for working up residues from the preparation of pyrrolidone and/or N-vinylpyrrolidone comprises subjecting the residues to a thermolysis.
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