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发明公开
CN109679768A 用于生产高度纯化的多不饱和脂肪酸的色谱方法 审中-实审

用于生产高度纯化的多不饱和脂肪酸的色谱方法
摘要：
本发明涉及一种从进料混合物中回收第一多不饱和脂肪酸的方法，其中除了所述第一多不饱和脂肪酸以外，所述进料混合物包含至少第二脂肪酸，所述方法包括：-使用水性有机洗脱剂进行色谱分离的主要步骤并从而收集富集第一多不饱和脂肪酸的第一洗脱剂流和富集第二脂肪酸的第二洗脱剂流；-使第二洗脱剂流经过浓缩步骤以一方面得到的浓缩脂肪酸流和另一方面得到耗尽的第二洗脱剂流，其中耗尽的第二洗脱剂流的水与有机物之比低于第二洗脱剂流的说与有机物之比；-再循环至少部分的耗尽的洗脱剂流用于色谱分离的主要步骤中。
摘要（英）：

The invention relates to a process for recovering a first polyunsaturated fatty acid from a feed mixture, wherein the feed mixture comprises at least a second fatty acid in addition to the first polyunsaturated fatty acid, the process comprising: performing a main step of chromatographic separation using an aqueous organic eluent and thereby collecting a first stream of eluent enriched in the first polyunsaturated fatty acid and a second stream of eluent enriched in the second fatty acid, subjecting the second stream of eluent to a concentration step so as to obtain a stream of concentrated fatty acids on the one hand and a depleted second stream of eluent on the other hand, wherein the water-to-organic ratio of the depleted second stream of eluent is lower than the water-to-organic ratioof the second stream of eluent, recycling at least part of the depleted second stream of eluent to use it in the main step of chromatographic separation.

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