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Xylose is an important chemical raw materials, as a non-caloric sweeteners in the food, beverage . Xylose main use is as a feedstock for the production of xylitol . The xylose production history in China for nearly 40 years . Xylose mother liquor xylose in the production of crystalline xylose , and the remaining liquid waste . Containing a high concentration of high economic value , xylose, arabinose , xylose mother liquor , so in recent years , how rational utilization of xylose mother liquor , more and more manufacturers attention . The same time, more and more research projects around the comprehensive utilization of xylose mother liquor . The purpose of this thesis is separated from xylose mother liquor xylose and arabinose . Two layers of mother liquor formed in the settlement of the mother liquor stratified study : Upper mother liquor was concentrated treatment , the lower the mother liquor alcohol washing isolated , further validate the conclusions the simple enrichment impossible crystalline xylose , at the same time draw with alcohol wash the lower mother liquor primary crystals can be obtained experimental results . In this paper, screening good two resins were xylose mother liquor separation and purification experiments , and the separation process has been optimized to determine the best optimal conditions . # Cation resin optimal conditions : the chromatography column height of 180cm, a temperature of 40 ° C , the mother liquor volume fraction of 83% , elution flow rate of 2 ml / min into the quantity 15 ml . Under this condition , the eluate arabinose content of 83.5 %, the recovery rate of 59.6% . # 2 anion resin optimum conditions as follows: the column height 90cm, feeding quantity 15ml, the elution rate 2ml/min , the operating temperature of 50 ° C . Under these conditions , the interception of the eluent , xylose and arabinose recoveries were 36.8 % , 48.8% . Finally, in accordance to determine good optimization conditions , the design of the two resins combined with the separation process , successfully isolated a xylose - rich fractions eluted and the eluted fractions rich in arabinose . Xylose, arabinose recoveries were 14.7% , 17.2% , to achieve the purpose of the initial separation of xylose and arabinose .
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