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    • 9. 发明申请
    • REMOVING IMPURITIES FROM SUGAR SOLUTIONS
    • 从糖解决方案中移除污染物
    • US20160090641A1
    • 2016-03-31
    • US14892781
    • 2013-05-28
    • ROHM AND HAAS COMPANYDOW GLOBAL TECHNOLOGIES LLC
    • Yi ShuFengshan LuoGongwei Pu
    • C13K13/00B01D15/36C07C29/00
    • C13K13/007B01D15/362B01D15/365C07C29/00C07C29/32C07C31/20C07H1/06C07H3/02
    • Provided is a process for removing impurities from a solution (S1), wherein said solution (S1) comprises one or more sugar dissolved in an aqueous solvent, wherein said solution (S1) has conductivity at 25° C. of 500 μS/cm or higher, and wherein said process comprises (a) contacting said solution (S1) with a cation exchange resin (R1) to produce a solution (S2) in which 80% or more of the cations are all of the same element (E); and (b) then contacting said solution (S2) with a cation exchange resin (R2) in which, prior to said contacting, 90% or more of acid groups are in the salt form with said element (E). Also provided is a process for producing glycols comprising providing an extract solution by the process of claim 1, and then contacting said solution (S3) with hydrogen and a metal catalyst.
    • 提供了从溶液(S1)中除去杂质的方法(S1),其中所述溶液(S1)包含溶解在水性溶剂中的一种或多种糖,其中所述溶液(S1)在25℃下的电导率为500μS/ cm,或 并且其中所述方法包括(a)使所述溶液(S1)与阳离子交换树脂(R1)接触以产生其中80%或更多的阳离子全部为相同元素(E)的溶液(S2); 和(b)然后使所述溶液(S2)与阳离子交换树脂(R2)接触,其中在所述接触之前,90%或更多的酸基与所述元素(E)呈盐形式。 还提供了一种生产二醇的方法,其包括通过权利要求1的方法提供提取物溶液,然后使所述溶液(S3)与氢气和金属催化剂接触。