山梨醇液的纳滤分离特性

发布时间：2018-05-18 19:56

本文选题：山梨醇液 + 结晶山梨醇　；参考：《中国食品添加剂》2016年09期

【摘要】：针对传统生产山梨醇产品存在的生产成本高、工艺过程复杂、流程长、水电汽等辅料消耗高、生产效率低等问题,根据纳滤膜可以截留或透过不同分子量物质的原理,研究采用截留分子量为200的纳滤膜分离提纯山梨醇液,通过单因素和试生产试验,考察了各操作参数对纳滤膜分离性能的影响,确定了较优的山梨醇液纳滤分离工艺条件:操作压力0.8MPa、操作温度40℃、错流流速8m/s、进料浓度35%,此时,纳滤膜对山梨醇液的平均膜通量为94.7 L/(m~2·h),对大分子物质的截留率为91.89%,山梨醇的透过率为93.28%,透过液中山梨醇的纯度达到99%以上,在满足制备医药级或食品级山梨醇产品的同时,得到了日化级或化学工业品级的山梨醇副产品,并降低了水耗和能耗,具有较好的经济效益和环保效果。
[Abstract]:The traditional production of sorbitol products has high production cost, complex process process, long process, high consumption of auxiliary materials for hydroelectric steam and low production efficiency. The separation and purification of sorbitol by nanofiltration membrane with 200 intercepted molecular weight is studied by nanofiltration membrane, which can be intercepted or permeable by nanofiltration membrane. The effect of the operation parameters on the separation performance of nanofiltration membrane was investigated. The optimum conditions of nanofiltration separation were determined. The operation pressure was 0.8MPa, the operating temperature was 40, the flow velocity was 8m/s, and the feed concentration was 35%. The average membrane flux of nanofiltration membrane to sorbitol was 94.7 L/ (m~2. H), and the retention rate to large molecular material was 91. .89%, the transmittance of sorbitol is 93.28%, the purity of sorbitol in the permeable liquid is more than 99%. At the same time, the sorbitol products are prepared for the preparation of medical grade or food grade sorbitol products, and the sorbitol by-products of daily chemical grade or chemical industry grade have been obtained, and the water consumption and energy consumption are reduced, and the economic and environmental effects are better.
【作者单位】：山东福田药业有限公司;成都连接膜科技有限公司;
【分类号】：TS202.3;TQ028.8

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