广州化工
廣州化工
엄주화공
Guangzhou Chemical Industry
2015年
20期
102-104
,共3页
固体超强酸%催化%合成%丁酸异戊酯
固體超彊痠%催化%閤成%丁痠異戊酯
고체초강산%최화%합성%정산이무지
solid superacid%catalysis%synthesis%isoamyl butyrate
以自制铁系固体超强酸Fe2 O3/S2 O2-8为催化剂,异戊醇和丁酸为原料合成丁酸异戊酯,同时考察了反应条件对酯化率的影响。结果表明,当醇酸物质的量之比为1.4：1,催化剂用量为1.2 g(反应混合物的5.84％),带水剂(甲苯)用量为10 mL,反应时间为2.0 h,酯化率可达95.83％。催化剂制备简单、成本低廉、催化活性高并可适当回收重复使用。
以自製鐵繫固體超彊痠Fe2 O3/S2 O2-8為催化劑,異戊醇和丁痠為原料閤成丁痠異戊酯,同時攷察瞭反應條件對酯化率的影響。結果錶明,噹醇痠物質的量之比為1.4：1,催化劑用量為1.2 g(反應混閤物的5.84％),帶水劑(甲苯)用量為10 mL,反應時間為2.0 h,酯化率可達95.83％。催化劑製備簡單、成本低廉、催化活性高併可適噹迴收重複使用。
이자제철계고체초강산Fe2 O3/S2 O2-8위최화제,이무순화정산위원료합성정산이무지,동시고찰료반응조건대지화솔적영향。결과표명,당순산물질적량지비위1.4：1,최화제용량위1.2 g(반응혼합물적5.84％),대수제(갑분)용량위10 mL,반응시간위2.0 h,지화솔가체95.83％。최화제제비간단、성본저렴、최화활성고병가괄당회수중복사용。
Isoamyl butyrate was synthetized from butyric acid and isoamyl alcohol with solid superacid Fe2 O3/S2 O2-8 as catalyst, the effects of the ratio of esterification by different reaction conditions were studied. The experimental results showed that the acid alcohol ratio was 1:1. 4, the amount of catalyst was 1. 2 g (5. 84% of reaction mixture), the reaction time was 2. 0 h, the amount of water-carrying agent ( toluene) was 10 mL, the yield was about 95. 83%. The prepared catalyst possessed advantages of low coast, high catalytic activity and easy separation from the reaction system. It can be reused to a certain extent.
