应用化工
應用化工
응용화공
APPLIED CHEMICAL INDUSTRY
2014年
5期
856-858,863
,共4页
孙昆仑%刘素环%何建英%陈丹云
孫昆崙%劉素環%何建英%陳丹雲
손곤륜%류소배%하건영%진단운
碳基固体酸催化剂%油酸甲酯%催化合成
碳基固體痠催化劑%油痠甲酯%催化閤成
탄기고체산최화제%유산갑지%최화합성
carbon-based solid acid catalyst%methyl oleate%catalytic synthesis
以蔗糖和对甲基苯磺酸混合物为原料,采用水热法一步合成了碳基固体酸催化剂,用于催化油酸和甲醇酯化合成油酸甲酯。考察了催化剂用量、原料配比、反应时间及催化剂重复使用性等对酯化率的影响。结果表明,适宜反应条件为:催化剂用量为油酸质量的3.54%,醇酸摩尔比6:1,反应时间7 h,酯化率可达94.96%。该催化剂尚具有一定的重复使用性。
以蔗糖和對甲基苯磺痠混閤物為原料,採用水熱法一步閤成瞭碳基固體痠催化劑,用于催化油痠和甲醇酯化閤成油痠甲酯。攷察瞭催化劑用量、原料配比、反應時間及催化劑重複使用性等對酯化率的影響。結果錶明,適宜反應條件為:催化劑用量為油痠質量的3.54%,醇痠摩爾比6:1,反應時間7 h,酯化率可達94.96%。該催化劑尚具有一定的重複使用性。
이자당화대갑기분광산혼합물위원료,채용수열법일보합성료탄기고체산최화제,용우최화유산화갑순지화합성유산갑지。고찰료최화제용량、원료배비、반응시간급최화제중복사용성등대지화솔적영향。결과표명,괄의반응조건위:최화제용량위유산질량적3.54%,순산마이비6:1,반응시간7 h,지화솔가체94.96%。해최화제상구유일정적중복사용성。
The carbon-based solid acid catalyst prepared from sucrose and p-toluenesulfonic acid(TsOH) by one-step hydrothermal method was used to synthesize methyl oleate from oleic acid and methyl alcohol. The effects of the amount of catalyst,the molar ration of alcohol to acid,reaction time and repeated usabil-ity of the catalyst,etc. on the esterification rate were investigated. The result showed that the optimum con-dition was as follows:3. 54% catalyst based on oleic acid,molar ration of methyl alcohol to oleic acid 6 : 1 and reaction time 7 h,the esterification rate was 94. 96% . In addition,the catalyst had certain repeated applicability.