林产化学与工业
林產化學與工業
림산화학여공업
CHEMISTRY AND INDUSTRY OF FOREST PRODUCTS
2009年
6期
65-68
,共4页
肉桂油%减压蒸馏%分子蒸馏%提纯%肉桂醛
肉桂油%減壓蒸餾%分子蒸餾%提純%肉桂醛
육계유%감압증류%분자증류%제순%육계철
cinnamon oil%vacuum distillation%molecular distillation%purify%cinnamicaldehyde
采用先减压蒸馏再分子蒸馏技术对肉桂油中肉桂醛的分离提纯进行了研究,通过GC分析分离物中肉桂醛的含量,优化了肉桂醛的分离工艺条件.减压蒸馏条件:压力1.333kPa,全回流塔顶温度70℃,轻组分收集塔顶温度70 ～ 100 ℃,过渡馏分收集塔顶温度100 ～ 115℃之间,粗醛收集塔顶温度115 ～ 125℃,回流比设定为2: 1,在此条件下,产品纯度和收率分别达到98.66%和84.68%.再经分子蒸馏,纯度可达99.5%,收率可达85.63%.
採用先減壓蒸餾再分子蒸餾技術對肉桂油中肉桂醛的分離提純進行瞭研究,通過GC分析分離物中肉桂醛的含量,優化瞭肉桂醛的分離工藝條件.減壓蒸餾條件:壓力1.333kPa,全迴流塔頂溫度70℃,輕組分收集塔頂溫度70 ～ 100 ℃,過渡餾分收集塔頂溫度100 ～ 115℃之間,粗醛收集塔頂溫度115 ～ 125℃,迴流比設定為2: 1,在此條件下,產品純度和收率分彆達到98.66%和84.68%.再經分子蒸餾,純度可達99.5%,收率可達85.63%.
채용선감압증류재분자증류기술대육계유중육계철적분리제순진행료연구,통과GC분석분리물중육계철적함량,우화료육계철적분리공예조건.감압증류조건:압력1.333kPa,전회류탑정온도70℃,경조분수집탑정온도70 ～ 100 ℃,과도류분수집탑정온도100 ～ 115℃지간,조철수집탑정온도115 ～ 125℃,회류비설정위2: 1,재차조건하,산품순도화수솔분별체도98.66%화84.68%.재경분자증류,순도가체99.5%,수솔가체85.63%.
A process for preparing cinnamaldehyde from cinnamon oil using vacuum distillation and molecular distillation was investigated. The optimum conditions of the process for obtaining high-purity and high-yield product were determined by analyzing the relative content of cinnamaldehyde with gas chromatography. The condition of vacuum distillation was as follows: pressure 1.333kPa, temperature of total reflux 60 - 70℃, temperature of collecting the light component 60 - 100℃, temperature of collecting the middle component 90 - 115℃, temperature of collecting crude cinnamaldehyde 110 - 125℃, reflux ratio 2: 1. Under these conditions, the purity and yield of the final product were 98.66% and 84.68%, respectively. The purity and yield reach 99.5% and 85.63% respectively after molecular distillation.
