Method for removing acids from an aqueous acid-containing xylose

Details Method for removing acids from an aqueous acid-containing xylose Method for removing acids from an aqueous acid-containing xylose

1976-06-16

1978-07-25

Wolk, Morris O.

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

127 46A, 127 9, C13K 102, C13K 1300

Patent

active

041027051

ABSTRACT:
The aqueous acid-containing xylose solution is first passed through an ion exchanger to remove the strong acid which was added to the raw material in the xylane hydrolysis and xylose extraction system and then subjected to evaporation in an evaporator. The evaporated water, acetic acid and formic acid of the solution is then condensed and is partly re-cycled and partly subjected to recovery processes. The concentrated xylose solution in the evaporator is then passed through a second ion exchanger to remove any traces of acetic acid or formic acid.

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patent: 2422821 (1947-06-01), Bhoota
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patent: 3785863 (1974-01-01), Deviller et al.
patent: 3970712 (1976-07-01), Friese
patent: 3990904 (1976-11-01), Friese et al.

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