| http://www.w3.org/ns/prov#value | - the feedstock.The crude product may be separated by feeding the product to a distillation column wherein a fraction comprising water, methyl ethyl ketone, sec-butyl acetate and minor amounts of alcohols and other volatile ketones and esters, which products,not including water, are collectively hereinafter referred to as light ends", is taken off as an overhead fraction and condensed thereby form
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