Process for the production of xylose

Details Process for the production of xylose Process for the production of xylose

1991-03-15

1994-08-23

Brunsman, David

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

127 58, 127 60, 127 61, C13K 102, C13K 104

Patent

active

053404033

ABSTRACT:
A process for producing xylose from a ligno-cellulosic material comprising xylan-containing hemicellulose in which the ligno-cellulosic material is subjected initially to the three steps (1) hydrolysis to produce an aqueous xylose-containing medium and an insoluble residue; (2) separation of the insoluble residue from the medium; and (3) treatment of the medium to remove organic and/or inorganic nutrients therefrom. The medium is thereafter concentrated to a syrup having a water content in the range 20% to 40% by weight which is then mixed with ethanol and the xylose is separated from the ethanolic solution.

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McCase et al, Unit Operation of Chemical Engineering, McGraw-Hill, N.Y., 1985, pp. 799-806.

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