Sud-chemie Ag

Bernd Brenner

Hans Buckl

Rudolf Fahn

Hermann Friese

Wolfgang Eisenschmid

An improvement in a process for the production of xylose or xylitol wherein a vegetable material is contacted with a basic substance and the solid residue is thereafter treated with an acid, the improvement resides in the use of stone nut shells, in employing a two-stage digestion initially with a 1.5-6 molar alkali metal hydroxide solution at 10.degree.-50.degree. C. and thereafter diluting the digestion mass to 0.75 molar or less and digesting at a temperature of at least 60.degree. C.

Process for two-stage digestion of natural products containing xylane,

Process for the two-stage decomposition of hemi-celluloses of xylan-containing natural products for the purpose of obtaining xylose and xylitol where the starting material is treated in the first stage with a basic medium and the obtained solid residue is subjected in a subsequent stage to an acid treatment wherein the alkaline and acid stages are carried out in a single reaction vessel.

Process for the two-stage decomposition of hemi-celluloses to xylose

A method for the preparation of xylose solutions from oat husks which comprises:

Growing community of inventors

Moosburg, Germany

Bernd Brenner