广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2012年
6期
40-41,16
,共3页
余文丽%郎春燕%周海军%温丽瑗%陈小平
餘文麗%郎春燕%週海軍%溫麗瑗%陳小平
여문려%랑춘연%주해군%온려원%진소평
四羰基钴钠%环氧乙烷%3-羟基丙酸甲酯%羰基化
四羰基鈷鈉%環氧乙烷%3-羥基丙痠甲酯%羰基化
사탄기고납%배양을완%3-간기병산갑지%탄기화
sodium tetracarbonyl cobaltate%ethylene oxide%methyl 3-hydroxypropionate%carbonylation.
我们以保险粉及锌粉为还原剂、用Co(Ac)2.6H2O在一定条件下制备了Na[Co(CO)4]催化剂,此催化剂用于环氧乙烷羰基化合成了3-羟基丙酸甲酯,并考察了不同配体、温度、压力和时间对合成3-羟基丙酸甲酯的影响,得出最佳工艺条件为:3-羟基吡啶为配体,压力5 MPa,温度65℃,时间7 h。在此条件下3-羟基丙酸甲酯的选择性为95.6%,收率为86.3%。
我們以保險粉及鋅粉為還原劑、用Co(Ac)2.6H2O在一定條件下製備瞭Na[Co(CO)4]催化劑,此催化劑用于環氧乙烷羰基化閤成瞭3-羥基丙痠甲酯,併攷察瞭不同配體、溫度、壓力和時間對閤成3-羥基丙痠甲酯的影響,得齣最佳工藝條件為:3-羥基吡啶為配體,壓力5 MPa,溫度65℃,時間7 h。在此條件下3-羥基丙痠甲酯的選擇性為95.6%,收率為86.3%。
아문이보험분급자분위환원제、용Co(Ac)2.6H2O재일정조건하제비료Na[Co(CO)4]최화제,차최화제용우배양을완탄기화합성료3-간기병산갑지,병고찰료불동배체、온도、압력화시간대합성3-간기병산갑지적영향,득출최가공예조건위:3-간기필정위배체,압력5 MPa,온도65℃,시간7 h。재차조건하3-간기병산갑지적선택성위95.6%,수솔위86.3%。
Methy 3-hydroxyproppionate from carbonylation of ethylene oxide and CO by Na[Co(CO)4] catalyst was obtained.The catalyst for carbonylation was prepared by reducing reagent composed sodium hydrosulfite and zinc power and Co(Ac)2?6H2O.After preparing catalyst,some of influences on synthesis of methy 3-hydroxyproppionate,including temperature,pressure,ligand and reaction time were investigated.The conditions optimized under which selectivity and yield to methy 3-hydroxyproppionate was 95.6 % and 86.3 %,respectively,were as follow: 3-hydroxypyridine as ligand,5 MPa of pressure,65 ℃ of temperature and 7 hours of reaction time.