发明名称 |
REMOVING IMPURITIES FROM SUGAR SOLUTIONS |
摘要 |
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. |
申请公布号 |
EP2978736(A4) |
申请公布日期 |
2016.11.23 |
申请号 |
EP20130885872 |
申请日期 |
2013.05.28 |
申请人 |
ROHM AND HAAS COMPANY;DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
SHU, YI;LUO, FENGSHAN;PU, GONGWEI |
分类号 |
C07C31/20;B01D15/36;C07H1/06;C07H3/02 |
主分类号 |
C07C31/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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