Method for separating sucralose-6-ester

一种分离三氯蔗糖-6-酯的方法

Abstract

The invention discloses a novel method for separating sucralose-6-ester. The method comprises the following steps that: the sucralose-6-ester is directly extracted and separated from mixture which contains the sucralose-6-ester, sugar byproducts, triamide, water and salt according to different solubility of the sucralose-6-ester and the triamide in an extractant; directly extracted sucralose-6-ester phases undergo a separating extractant and recrystallization, and the sucralose-6-ester is purified; the sucralose-6-ester is dried under adequate temperature conditions; and the triamide is purified by means of rectification of residual phases after extraction. The method has the advantages of low production cost, high yield, simple equipment, investment conservation, easy treatment of three wastes, etc.
本申请公开了一种分离三氯蔗糖-6-酯的新方法。该方法包括将含有三氯蔗糖-6-酯及蔗糖附产物、叔酰胺、水及盐类的混合溶液,通过三氯蔗糖-6-酯与叔酰胺在萃取剂中的溶解度不同,直接萃取分离出三氯蔗糖-6-酯。将直接萃取的三氯蔗糖-6-酯相,通过分离萃取剂后,再进行重结晶提纯三氯蔗糖-6-酯,在适当的温度条件下,进行烘干处理。对萃余相,通过精馏的方法,提纯叔酰胺。本法具有生产成本低、收率高、设备简单、投资省、三废易处理等优点。

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Cited By (4)

    Publication numberPublication dateAssigneeTitle
    CN-102482201-AMay 30, 2012塔特和莱利技术有限公司被叔乙酰胺污染的叔甲酰胺的纯化
    CN-102482201-BNovember 25, 2015塔特和莱利技术有限公司被叔乙酰胺污染的叔甲酰胺的纯化
    CN-102516320-AJune 27, 2012盐城捷康三氯蔗糖制造有限公司Method for recovering sucralose-6-ester from chlorination residues
    US-8981079-B2March 17, 2015Tate & Lyle Technology LimitedPurification of tertiary formamide contaminated with tertiary acetamide