Method of separation of sugars and concentrated sulfuric acid

Details Method of separation of sugars and concentrated sulfuric acid Method of separation of sugars and concentrated sulfuric acid

C - Chemistry, Metallurgy

01

B

23/116, 23/363

C01B 17/90 (2006.01) C01B 17/92 (2006.01) C13K 1/04 (2006.01) C13K 1/10 (2006.01)

Patent

CA 1253668

ABSTRACT OF THE DISCLOSURE A method of recovering concentrated sulfuric acid from the product obtained from the acid hydrolysis of a cellulose-containing material such a biomass. The method involves contacting the product with an extraction solvent comprising one or more of the C4 - C7 alcohols as the major component to spearate the product into a sulfuric acid enriched phase. The sulfuric acid from this enriched phase is then separated and recovered by a further extraction procedure.

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