Process for production of chlorinated sucrose based on hydrophobic affinity chromatography
申请人:Ratnam Rakesh
公开号:US20100222570A1
公开(公告)日:2010-09-02
This invention relates to a process for selective capture, isolation and purification of chlorinated sucrose compounds, including chlorinated sucrose, their precursors and derivatives, including trichlorogalactosucrose (TGS), directly from chlorinated reaction mixture by column chromatography on adsorbents and under conditions which result in specific and selective affinity towards one or more of chlorinated sucrose compound. The process also integrates de-esterification of chlorinated sucrose esters adsorbed on the adsorbent while they are being treated with desorbent. The process also provides a novel approach to concentration and crystallization of TGS. The chlorinated sucrose derivatives, including TGS, thus isolated are substantially free from most impurities, salts and organic solvents. The process has high recovery of more than 95% in terms of desired chlorinated sucrose derivatives including TGS.
本发明涉及一种从氯化反应混合物中通过吸附剂柱层析和在特定条件下对氯化蔗糖化合物,包括氯化蔗糖、其前体和衍生物,如三氯半乳糖蔗糖(TGS)进行选择性捕获、分离和纯化的过程。该过程还结合了在吸附剂上吸附的氯化蔗糖酯在处理解吸剂时的去酯化。该过程还提供了一种新的浓缩和结晶TGS的方法。因此,分离出的包括TGS在内的氯化蔗糖衍生物基本上不含大多数杂质、盐和有机溶剂。该过程具有高达95%以上的期望氯化蔗糖衍生物,包括TGS的高回收率。