现代化工
現代化工
현대화공
MODERN CHEMICAL INDUSTRY
2009年
z1期
228-230,232
,共4页
曹晓伟%魏金慧%江振西%任保增
曹曉偉%魏金慧%江振西%任保增
조효위%위금혜%강진서%임보증
L-抗坏血酸%磷酸反应%L-抗坏血酸多聚磷酸酯
L-抗壞血痠%燐痠反應%L-抗壞血痠多聚燐痠酯
L-항배혈산%린산반응%L-항배혈산다취린산지
L-ascorbat acid%Phosphorylation reaction%L-ascorbyl polyphosphate
以L-抗坏血酸为原料,三偏磷酸钠为磷酸化试剂,氯化钙为催化剂,在极性水溶液体系中发生酯化反应生成L-抗坏血酸多聚磷酸酯.通过单因素及正交实验,获得了适宜的反应条件:反应温度为35℃,L-抗坏血酸与三偏磷酸钠的摩尔比为1:1.3,L-抗坏血酸与氯化钙的摩尔配比为1:0.15,反廊溶液pH为9,在该反应条件下,L-抗坏血酸多聚磷酸酯收率为76.58%.
以L-抗壞血痠為原料,三偏燐痠鈉為燐痠化試劑,氯化鈣為催化劑,在極性水溶液體繫中髮生酯化反應生成L-抗壞血痠多聚燐痠酯.通過單因素及正交實驗,穫得瞭適宜的反應條件:反應溫度為35℃,L-抗壞血痠與三偏燐痠鈉的摩爾比為1:1.3,L-抗壞血痠與氯化鈣的摩爾配比為1:0.15,反廊溶液pH為9,在該反應條件下,L-抗壞血痠多聚燐痠酯收率為76.58%.
이L-항배혈산위원료,삼편린산납위린산화시제,록화개위최화제,재겁성수용액체계중발생지화반응생성L-항배혈산다취린산지.통과단인소급정교실험,획득료괄의적반응조건:반응온도위35℃,L-항배혈산여삼편린산납적마이비위1:1.3,L-항배혈산여록화개적마이배비위1:0.15,반랑용액pH위9,재해반응조건하,L-항배혈산다취린산지수솔위76.58%.
Taking L-ascorbat acid as raw material,sodium trimetaphosphat as phosphorylation agent,ealcitma chloride as catalyst,L-ascorbyl polyphosphate is prepared through esterifying reactions in water solvent.Through single factor and orthogonal experiments,the optimal reaction conditions are obtained as follows:reaction temperature of 35℃,the mole ratio of L-ascorbat acid to sodium trimetaphosphat of 1.0:1.3,the mole ratio of L-ascorbat acid to caicium chloride of 1:0.15,solution pH of 9,under those experimental conditions,the yield of L-ascorbyl polyphosphate can be up to 76.58%.
