PROCESS FOR THE PRODUCTION OF FURFURAL FROM PENTOSES
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United States of America Patent
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Issued Date -
May 3, 2012
app pub date -
Nov 11, 2010
filing date -
Oct 27, 2010
priority date (Note) -
Abandoned
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Abstract
The invention is directed to a process for the production of furfural from pentoses and/or water soluble pentosans, said process comprising converting the said pentoses and/or water soluble pentosans in aqueous solution in a first step to furfural and in a second step feeding the aqueous solution containing furfural obtained in the first step to the top of a distillation column to produce an aqueous, liquid downflow, which column is heated at the bottom to produce an upflow water vapour flow, recovering a gaseous water and furfural containing product stream from the top of the said column, compressing the said vapour flow and condensing it on the hot side of a reboiler at the bottom of the said column.
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