Selective chemo-catalytic oxidation of lactose and/of lactobionic acid towards 1-carboxylactulose (2-keto-lactobionic acid)

被引：41

作者：

Abbadi, A ^{[1
]}

Gotlieb, KF ^{[1
]}

Meiberg, JBM ^{[1
]}

vanBekkum, H ^{[1
]}

机构：

[1] GLUCONA BV,NL-9640 AA VEENDAM,NETHERLANDS

来源：

APPLIED CATALYSIS A-GENERAL | 1997年 / 156卷 / 01期

关键词：

lactose; lactobionic acid; 1-carboxylactulose; liquid phase heterogeneous catalytic oxidation; Bi/Pt/C catalyst;

D O I：

10.1016/S0926-860X(96)00409-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Heterogeneous liquid phase selective catalytic oxidation of lactose and/of lactobionic acid towards 1-carboxylactulose (2-keto-lactobionic acid) was investigated. Bismuth-modified platinum catalyst with air as the terminal oxidant was the catalyst of choice to carry out this conversion. The oxidation of lactobionic acid was performed with a selectivity >95% towards 1-carboxylactulose but the conversion did not exceed 50% due to poisoning of the catalyst. When lactose was used as substrate the conversion of lactobionic acid formed in situ was extended to 83% and the catalyst selectivity towards 1-carboxylactulose was maintained. The lactose was completely oxidized to lactobionic acid.

引用

页码：105 / 115

页数：11

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