RTIL consisting of 1-methyl-3-butyl-imidazolium（BMIm） cation and bis（trifluoromethane sulfone） imide（TFSI） anion was mixed with 1-methyl-3-n-butyl-imidazolium hexafluorophosphate(BMImPF6) at different ratios.The...RTIL consisting of 1-methyl-3-butyl-imidazolium（BMIm） cation and bis（trifluoromethane sulfone） imide（TFSI） anion was mixed with 1-methyl-3-n-butyl-imidazolium hexafluorophosphate(BMImPF6) at different ratios.Their room temperature conductivity,MS,LV were measured and the effect on association phenomenon by mixing is analyzed.The results demonstrate that the mixtures of ionic liquids can reduce the association degree of single ionic liquid with the better effect of properties,which mesans that the properties of the mixtures are not the average of single RTIL,but have a synergism effect.展开更多
A new scale inhibitor, epoxysuccinic acid 2,3 epoxypropylsulfonic acid copolymer(PECS) was synthesized from disodium epoxysuccinate and sodium 2,3 epoxypropylsulfonate. The effects of the molar ratio of the monomers, ...A new scale inhibitor, epoxysuccinic acid 2,3 epoxypropylsulfonic acid copolymer(PECS) was synthesized from disodium epoxysuccinate and sodium 2,3 epoxypropylsulfonate. The effects of the molar ratio of the monomers, the polymerization temperature, time, and the amount of initiator were studied. The optimal synthesis conditions were as follows:the polymerization temperature was at 70 ℃, the molar ratio of n (epoxysuccinic acid)∶ n (2,3 epoxypropylsulfonic acid)∶ n (initiator)=1∶1∶0 1, and the reaction time was 12 h. The results show that PECS is similar to polyepoxysuccinic acid(PESA) in inhibiting calcium carbonate scale and calcium sulfate scale, and superior to PESA in inhibiting calcium phosphate scale and stabilizing zinc salt.展开更多
采用单因素法,以2-氯-4,6-二(N-丁基-2,2,6,6-四甲基-4-哌啶胺基)-1,3,5-三嗪、环己烷、叔丁基过氧化氢为原料,三氧化钼为催化剂合成2-氯-4,6-二(N-丁基-1-环己氧基-2,2,6,6-四甲基-4-哌啶胺基)-1,3,5-三嗪。结果表明,最佳工艺条件为反...采用单因素法,以2-氯-4,6-二(N-丁基-2,2,6,6-四甲基-4-哌啶胺基)-1,3,5-三嗪、环己烷、叔丁基过氧化氢为原料,三氧化钼为催化剂合成2-氯-4,6-二(N-丁基-1-环己氧基-2,2,6,6-四甲基-4-哌啶胺基)-1,3,5-三嗪。结果表明,最佳工艺条件为反应温度95℃,反应时间14 h,原料物质的量比n(2-氯-4,6-二(N-丁基-2,2,6,6-四甲基-4-哌啶胺基)-1,3,5-三嗪)∶n(环己烷)∶n(叔丁基过氧化氢)为0.01∶0.45∶0.2,催化剂三氧化钼用量为0.4 g (相对0.01 mol2-氯-4,6-二(N-丁基-2,2,6,6-四甲基-4-哌啶胺基)-1,3,5-三嗪),产品收率为93.50%。展开更多
文摘RTIL consisting of 1-methyl-3-butyl-imidazolium（BMIm） cation and bis（trifluoromethane sulfone） imide（TFSI） anion was mixed with 1-methyl-3-n-butyl-imidazolium hexafluorophosphate(BMImPF6) at different ratios.Their room temperature conductivity,MS,LV were measured and the effect on association phenomenon by mixing is analyzed.The results demonstrate that the mixtures of ionic liquids can reduce the association degree of single ionic liquid with the better effect of properties,which mesans that the properties of the mixtures are not the average of single RTIL,but have a synergism effect.
文摘A new scale inhibitor, epoxysuccinic acid 2,3 epoxypropylsulfonic acid copolymer(PECS) was synthesized from disodium epoxysuccinate and sodium 2,3 epoxypropylsulfonate. The effects of the molar ratio of the monomers, the polymerization temperature, time, and the amount of initiator were studied. The optimal synthesis conditions were as follows:the polymerization temperature was at 70 ℃, the molar ratio of n (epoxysuccinic acid)∶ n (2,3 epoxypropylsulfonic acid)∶ n (initiator)=1∶1∶0 1, and the reaction time was 12 h. The results show that PECS is similar to polyepoxysuccinic acid(PESA) in inhibiting calcium carbonate scale and calcium sulfate scale, and superior to PESA in inhibiting calcium phosphate scale and stabilizing zinc salt.
文摘采用单因素法,以2-氯-4,6-二(N-丁基-2,2,6,6-四甲基-4-哌啶胺基)-1,3,5-三嗪、环己烷、叔丁基过氧化氢为原料,三氧化钼为催化剂合成2-氯-4,6-二(N-丁基-1-环己氧基-2,2,6,6-四甲基-4-哌啶胺基)-1,3,5-三嗪。结果表明,最佳工艺条件为反应温度95℃,反应时间14 h,原料物质的量比n(2-氯-4,6-二(N-丁基-2,2,6,6-四甲基-4-哌啶胺基)-1,3,5-三嗪)∶n(环己烷)∶n(叔丁基过氧化氢)为0.01∶0.45∶0.2,催化剂三氧化钼用量为0.4 g (相对0.01 mol2-氯-4,6-二(N-丁基-2,2,6,6-四甲基-4-哌啶胺基)-1,3,5-三嗪),产品收率为93.50%。
