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公开(公告)号：US06224683B1
公开(公告)日：2001-05-01
申请号：US09402415
申请日：1999-10-04
IPC分类号： C07B6300
CPC分类号： C13B20/14 , B01D15/185 , B01D2215/023 , B01J39/26 , C13B20/144
摘要： In demineralization of a beet sugar solution before boiling as the starting solution with a simulated moving bed chromatographic separator comprising a plurality of packed column units packed with a strongly acidic cation exchange resin in a salt form having an average grain size of 300 to 500 &mgr;m and a uniformity coefficient of at most 1.2 as chromatographic packing (separating packing), and each provided with a starting solution feed inlet, an eluent water feed inlet, a withdrawal outlet for a fraction of a component having a strong affinity for chromatographic packing (“strong-affinity component”), and a withdrawal outlet for a fraction of a component having a weak affinity for chromatographic packing (“weak-affinity component”); use is made of circulating pumps, the number of which is at least half of the number of the packed column units, and the beet sugar solution before boiling is demineralized under the following conditions: starting solution feed rate/eluent water feed rate volume ratio=1/2.5 to 1/3.5, strong-affinity component fraction withdrawal rate/weak-affinity component fraction withdrawal rate volume ratio=0.5/1 to 1.2/1, and circulating flow rate=25 to 80 vol. % /hr. based on chromatographic packing in a slowest flow velocity zone in the circulation system, whereby a sucrose fraction having a high sucrose concentration is obtained using a small amount of eluent water with a large throughput.
摘要翻译： 在用沸腾前的甜菜糖溶液作为起始溶液进行脱矿化，其中模拟移动床层析分离器包含多个填充柱单元，其填充有平均粒径为300-500μm的盐形式的强酸性阳离子交换树脂，和 均匀系数最多为1.2，色谱填料（分离填料），每个均具有起始溶液进料口，洗脱水进料口，对色谱填料具有很强亲和力的成分部分的萃取出口（“强 - 亲和性组分“）和用于色谱填充弱亲和性的组分的一部分的提取出口（”弱亲和组分“）; 使用循环泵，其数量至少是填充柱单元数量的一半，煮沸前的甜菜糖溶液在以下条件下脱矿质：起始溶液进料速率/洗脱液进料速率体积比= 1 / 2.5〜1 / 3.5，强亲和成分馏分提取率/弱亲和成分馏分体积比= 0.5 / 1〜1.2 / 1，循环流量= 25〜80体积％。 ％/小时。 基于循环系统中最慢流速区域中的色谱填充，由此使用少量具有大生产量的洗脱水获得具有高蔗糖浓度的蔗糖级分。
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