PREPARATION OF CAPROLACTAM FROM 6-AMINO CAPROIC ACID OBTAINED IN A FERMENTATION PROCESS
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Dec 8, 2015
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Dec 22, 2009
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The invention relates to a method for preparing caprolactam comprising recovering a mixture containing 6-aminocaproic acid, from a culture medium comprising biomass, and thereafter cyclising the 6-aminocaproic acid in the presence of superheated steam, thereby forming caprolactam, wherein the weight to weight ratio carbohydrate to 6-aminocaproic acid in said mixture is 0.03 or less.
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