发明名称 |
Method for producing xylitol by using hydrolysate of eucalyptus chips, and hydrolysis tower |
摘要 |
The present invention specifically relates to a method for producing xylitol by pre-extracting hydrolysate from eucalyptus dissolving pump chips, and further relates to a hydrolysis tower used in the hydrolyzation process. Disclosed is a xylitol producing method. The method for producing xylitol by pre-extracting hydrolysate from eucalyptus dissolving pump chips comprises the following steps: pre-hydrolyzing eucalyptus chips; performing acid-hydrolysis on the pre-hydrolized hydrolysate, and performing decoloration, ion-exchange purification, concentration and crystallization processing on the hydrolysate to obtain xylose; and performing dissolution, hydrogenation, decoloration and purification and crystallization processing on the xylose to obtain the xylitol. Pre-hydrolyzation of the eucalyptus chips is performed in the hydrolysis tower. After the pre-hydrolyzation, the hydrolysate is extracted from the hydrolysis tower and acid-hydrolysis is performed on the hydrolysate. Continuous feed-in and continuous hydrolyzation solves the problem of low efficiency due to complex processes, such as putting materials in a pot, adding acid liquid, hydrolyzation, extraction and discharging, required by an intermittent hydrolyzation process in the prior art. |
申请公布号 |
AU2012372733(A1) |
申请公布日期 |
2014.09.25 |
申请号 |
AU20120372733 |
申请日期 |
2012.12.28 |
申请人 |
SHANDONG TAIYANGZHIYE CO., LTD. |
发明人 |
YING, GUANGDONG;CHEN, KEFU;LIU, ZEHUA;LIU, YANBO;QIAO, JUN;ZHANG, WEI;ZHAI, BINGYAN;LINAG, HONGJIN;LU, QINGHUI;ZHONG, HONGXIA |
分类号 |
C07C29/141;B01J16/00;B01J19/20;C07C31/18 |
主分类号 |
C07C29/141 |
代理机构 |
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代理人 |
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