CAJ | 학술논문

针对常规质子酸催化合成出的甲基葡萄糖苷色泽深、收率低的问题,采用自制的负载型固体超强酸催化合成甲基葡萄糖苷。通过在活性炭上负载对甲苯磺酸、浓硫酸、磷钨酸等强酸,得到负载型超强酸催化剂CBSL。用CBSL催化剂催化合成甲基葡萄糖苷,得到的优化反应条件为：葡萄糖与甲醇物质的量之比为1∶8,催化剂加量为葡萄糖质量的5%,在140℃温度下反应4.0 h。自制产品和市售产品性能对比结果表明,自制甲基葡萄糖苷的岩心回收率明显高于市售产品,浓度为40%时,自制产品岩心回收率93.12%,市售产品岩心回收率90.13%；自制产品的润滑性能优于市售产品,当浓度为30%时,自制产品润滑系数0.08,市售产品润滑系数0.09,随着浓度的升高,市售产品的润滑系数均高于自制产品。自制产品的合成工艺及所用催化剂具有较好的工业放大前景。
침대상규질자산최화합성출적갑기포도당감색택심、수솔저적문제,채용자제적부재형고체초강산최화합성갑기포도당감。통과재활성탄상부재대갑분광산、농류산、린오산등강산,득도부재형초강산최화제CBSL。용CBSL최화제최화합성갑기포도당감,득도적우화반응조건위：포도당여갑순물질적량지비위1∶8,최화제가량위포도당질량적5%,재140℃온도하반응4.0 h。자제산품화시수산품성능대비결과표명,자제갑기포도당감적암심회수솔명현고우시수산품,농도위40%시,자제산품암심회수솔93.12%,시수산품암심회수솔90.13%；자제산품적윤활성능우우시수산품,당농도위30%시,자제산품윤활계수0.08,시수산품윤활계수0.09,수착농도적승고,시수산품적윤활계수균고우자제산품。자제산품적합성공예급소용최화제구유교호적공업방대전경。
In response of the problems of methyl glucoside has deep color and low yield which was synthe-sized by conventional proton catalyst,methyl glucoside was synthesized by supported super acid catalyst which was self-made. Supported super acid catalyst CBSL was got through some acid supported on activa-ted carbon, the acid including p-toluene sulfonic acid, concentrated sulfuric acid and phosphotungstic acid. The optimum reaction conditions for the synthesis of methyl glucoside catalyzed by CBSL catalyst were shown as follows:molar ratio of glucose and methanol was 1∶8 , catalyst dosage was 5% of glucose quality,reacted at the temperature of 140 ℃ for 4 h. Comparison performance results of self made and marketed products were shown that,the cutting recovery of homemade methyl glucoside was significantly higher than that of marketed products,at the concentration of 40%,home-made products cutting recovery rate is 93. 12%,the marketed products cutting recovery rate is 90. 13%; the lubrication performance of homemade products is better than the marketed products,at the concentration of 30%,the lubricating co-efficient of self-made products is 0. 08,the lubricating coefficient of marketed products is 0. 09,with the concentration of methyl glucoside increasing,the lubrication coefficient of marketed products were higher than that of the self-made products. It has good industrial prospects for the synthesis of self-made products and the CBSL catalyst.