A novel amphoteric surfactants,betaine type phosphate were synthesized from lauryl alcohol,epichlorphydyin,dimethylamine,chlorohydrin,acetic anhydride,phoshorus(V)oxide.The physicochemical properties of the products...A novel amphoteric surfactants,betaine type phosphate were synthesized from lauryl alcohol,epichlorphydyin,dimethylamine,chlorohydrin,acetic anhydride,phoshorus(V)oxide.The physicochemical properties of the products such as surface tension,foaming property,dispersion of calcium soap and solubilizing power were measured.展开更多
Triton Xs(TXs) surfactants/cosurfactant/water/oil(toluene) microemulsion systems for enhancing toluene solubilization were proposed and its potential was investigated for toluene removal from gas stream.The results in...Triton Xs(TXs) surfactants/cosurfactant/water/oil(toluene) microemulsion systems for enhancing toluene solubilization were proposed and its potential was investigated for toluene removal from gas stream.The results indicated that TX-100 was superior to other TXs surfactants in removing toluene without cosurfactant.The efficiency of cosurfactants for improving toluene solubilization capacity follows the order:amine>alcohol>acid.According to the factor analysis,the linear cosurfactants are better than the branched ones.The effects of hydrophile-lipophile balance(HLB),salt(NaCl) concentration and temperature on the formation of microemulsion system were also discussed.The results suggested that the optimum value of HLB was 15,the effect of NaCl concentration on the system was inconspicuous and the lower temperature enhanced the solubilization capacity.Nonionic surfactant-based microemulsions had a significant absorption enhancement for toluene,indicated by as much as 82.72% of toluene in phase composition diagram,which will have a great prospect in air pollution treatment.展开更多
文摘A novel amphoteric surfactants,betaine type phosphate were synthesized from lauryl alcohol,epichlorphydyin,dimethylamine,chlorohydrin,acetic anhydride,phoshorus(V)oxide.The physicochemical properties of the products such as surface tension,foaming property,dispersion of calcium soap and solubilizing power were measured.
基金supported by the National Natural Science Foundation of China (No.20607008)the National Science Research Foundation of Yunnan Province Educational Office (No.07Y11138)
文摘Triton Xs(TXs) surfactants/cosurfactant/water/oil(toluene) microemulsion systems for enhancing toluene solubilization were proposed and its potential was investigated for toluene removal from gas stream.The results indicated that TX-100 was superior to other TXs surfactants in removing toluene without cosurfactant.The efficiency of cosurfactants for improving toluene solubilization capacity follows the order:amine>alcohol>acid.According to the factor analysis,the linear cosurfactants are better than the branched ones.The effects of hydrophile-lipophile balance(HLB),salt(NaCl) concentration and temperature on the formation of microemulsion system were also discussed.The results suggested that the optimum value of HLB was 15,the effect of NaCl concentration on the system was inconspicuous and the lower temperature enhanced the solubilization capacity.Nonionic surfactant-based microemulsions had a significant absorption enhancement for toluene,indicated by as much as 82.72% of toluene in phase composition diagram,which will have a great prospect in air pollution treatment.
