以异丙醇为溶剂,氯铂酸为催化剂,通过硅氢加成反应,将聚氧乙烯聚氧丙烯环氧基醚和聚氧乙烯聚氧丙烯甲基醚接枝到聚硅氧烷上,得到聚醚聚硅氧烷类原油破乳剂,较佳合成条件为:n(Si—H)∶n(CC)=1∶1.2,n(环氧基醚)∶n(甲基醚)=3∶1,w(异丙...以异丙醇为溶剂,氯铂酸为催化剂,通过硅氢加成反应,将聚氧乙烯聚氧丙烯环氧基醚和聚氧乙烯聚氧丙烯甲基醚接枝到聚硅氧烷上,得到聚醚聚硅氧烷类原油破乳剂,较佳合成条件为:n(Si—H)∶n(CC)=1∶1.2,n(环氧基醚)∶n(甲基醚)=3∶1,w(异丙醇)=40%,反应温度100℃,反应时间5h,在此条件下转化率达到92.83%。通过IR和1 H NMR对产物的分子结构进行了表征。用模拟原油乳液在室内对破乳剂进行了评价,在n(环氧基醚)∶n(甲基醚)=3∶1,破乳剂用量120mg/L,脱水温度65℃,脱水时间2.5h条件下,脱水率达到92.63%,自制破乳剂破乳性能优于常用破乳剂SP169和SAE。展开更多
Lewis acidic ionic liquids were used to catalyze the reaction of epoxypropane with POCl3. Considering the lower cost and catalytic activities, we concluded that [Et3NH]Cl/AlCl3 was the most attractive ionic liquid fro...Lewis acidic ionic liquids were used to catalyze the reaction of epoxypropane with POCl3. Considering the lower cost and catalytic activities, we concluded that [Et3NH]Cl/AlCl3 was the most attractive ionic liquid from an economical point of view. But it would be easily inactivated because of sensitive to water and air. Moreover, it could not be reused easily because of difficulty recovery in the reaction. However, supporting [Et3NH]Cl/AlCl3 catalyst could resolve above problems. Supporting [Et3NH]Cl/ AlCl3 catalyst could be separated by filter easily and reused 5 times in 98% yield. Furthermore, the catalyst was applicable to other epoxy ether cleaving reactions.展开更多
以三溴苯基环氧丙基醚、四氯化硅和2-氯丙醇为主要原料,合成了一种含硅、氯、溴三元素协同的高效阻燃剂硅酸三(氯丙基)三溴苯氧基氯丙基酯。探讨了反应温度、时间及物质的量比等对收率的影响,最适宜的工艺条件是:三溴苯基环氧丙基醚与...以三溴苯基环氧丙基醚、四氯化硅和2-氯丙醇为主要原料,合成了一种含硅、氯、溴三元素协同的高效阻燃剂硅酸三(氯丙基)三溴苯氧基氯丙基酯。探讨了反应温度、时间及物质的量比等对收率的影响,最适宜的工艺条件是:三溴苯基环氧丙基醚与四氯化硅及2-氯丙醇的物质的量比为1∶1∶3.4,在80℃反应4h,收率为97.6%。采用FT-IR、1 H NMR表征了产物的分子结构,并用极限氧指数方法测试了产物的阻燃性能等。展开更多
文摘以异丙醇为溶剂,氯铂酸为催化剂,通过硅氢加成反应,将聚氧乙烯聚氧丙烯环氧基醚和聚氧乙烯聚氧丙烯甲基醚接枝到聚硅氧烷上,得到聚醚聚硅氧烷类原油破乳剂,较佳合成条件为:n(Si—H)∶n(CC)=1∶1.2,n(环氧基醚)∶n(甲基醚)=3∶1,w(异丙醇)=40%,反应温度100℃,反应时间5h,在此条件下转化率达到92.83%。通过IR和1 H NMR对产物的分子结构进行了表征。用模拟原油乳液在室内对破乳剂进行了评价,在n(环氧基醚)∶n(甲基醚)=3∶1,破乳剂用量120mg/L,脱水温度65℃,脱水时间2.5h条件下,脱水率达到92.63%,自制破乳剂破乳性能优于常用破乳剂SP169和SAE。
基金A Project Funded by Jiangsu Natural Science Foundation of China(No.BK2011369)
文摘Lewis acidic ionic liquids were used to catalyze the reaction of epoxypropane with POCl3. Considering the lower cost and catalytic activities, we concluded that [Et3NH]Cl/AlCl3 was the most attractive ionic liquid from an economical point of view. But it would be easily inactivated because of sensitive to water and air. Moreover, it could not be reused easily because of difficulty recovery in the reaction. However, supporting [Et3NH]Cl/AlCl3 catalyst could resolve above problems. Supporting [Et3NH]Cl/ AlCl3 catalyst could be separated by filter easily and reused 5 times in 98% yield. Furthermore, the catalyst was applicable to other epoxy ether cleaving reactions.
文摘以三溴苯基环氧丙基醚、四氯化硅和2-氯丙醇为主要原料,合成了一种含硅、氯、溴三元素协同的高效阻燃剂硅酸三(氯丙基)三溴苯氧基氯丙基酯。探讨了反应温度、时间及物质的量比等对收率的影响,最适宜的工艺条件是:三溴苯基环氧丙基醚与四氯化硅及2-氯丙醇的物质的量比为1∶1∶3.4,在80℃反应4h,收率为97.6%。采用FT-IR、1 H NMR表征了产物的分子结构,并用极限氧指数方法测试了产物的阻燃性能等。
