The adsorption properties of phenol on XDA-1 resin were studied by chemical analysis and IR spectrometry.The statically saturated adsorption capacity,dynamic saturated adsorption capacity,apparent activation energy,th...The adsorption properties of phenol on XDA-1 resin were studied by chemical analysis and IR spectrometry.The statically saturated adsorption capacity,dynamic saturated adsorption capacity,apparent activation energy,thermodynamic parameters,and adsorption rate constants were measured at different temperatures.As a result,adsorption of phenol on the resin obeys the Freundlich formula.And phenol was recovered quantitatively when ethanol,acetone or 1.0 mol/L sodium hydroxide were used to desorb it from the column.展开更多
Macroreticular bead PAN/PVC IPN resins with cyano and chloro groups were synthesized by interpenetrating polymerization of acrylonitrile, or acrylonitrile and divinylbenzene into a macroporous polyvinyl chloride bead....Macroreticular bead PAN/PVC IPN resins with cyano and chloro groups were synthesized by interpenetrating polymerization of acrylonitrile, or acrylonitrile and divinylbenzene into a macroporous polyvinyl chloride bead. The composition and structure of the bead IPN resins have been investigated by means of FT-IR, NMR, SEM, mercury porosimetry and elemental analysis. During the process of interpenetrating polymerization, the chain propagation obeys Bernoullian statistical law, and no grafting polymerization has been observed. The content of cyano group in the resulting IPN resins can be adjusted by the amount of acrylonitrile added. The morphology of the IPN resins basically resembles that of the polyvinyl chloride bead, whereas the pore structures vary to a certain degree展开更多
以山杏核壳为原料,采用大孔树脂纯化山杏核壳提取液中的总黄酮,利用单因素试验和正交试验优化D101大孔树脂纯化山杏核壳总黄酮的工艺条件。结果表明:在上样溶液质量浓度0.3 mg/m L、p H 2、流速2 m L/min的条件下进行纯化实验,大孔树脂...以山杏核壳为原料,采用大孔树脂纯化山杏核壳提取液中的总黄酮,利用单因素试验和正交试验优化D101大孔树脂纯化山杏核壳总黄酮的工艺条件。结果表明:在上样溶液质量浓度0.3 mg/m L、p H 2、流速2 m L/min的条件下进行纯化实验,大孔树脂对山杏核壳总黄酮的平均吸附率为75.20%。山杏核壳总黄酮的质量分数可达51.63%,表明D101大孔树脂对山杏核壳总黄酮有较好的纯化效果,且工艺重复性和稳定性良好。展开更多
基金Natural Science Foundation of Zhejiang Province of China(No.Y3090531)
文摘The adsorption properties of phenol on XDA-1 resin were studied by chemical analysis and IR spectrometry.The statically saturated adsorption capacity,dynamic saturated adsorption capacity,apparent activation energy,thermodynamic parameters,and adsorption rate constants were measured at different temperatures.As a result,adsorption of phenol on the resin obeys the Freundlich formula.And phenol was recovered quantitatively when ethanol,acetone or 1.0 mol/L sodium hydroxide were used to desorb it from the column.
基金Supported by the Science Fund of the State Education Commission of China.
文摘Macroreticular bead PAN/PVC IPN resins with cyano and chloro groups were synthesized by interpenetrating polymerization of acrylonitrile, or acrylonitrile and divinylbenzene into a macroporous polyvinyl chloride bead. The composition and structure of the bead IPN resins have been investigated by means of FT-IR, NMR, SEM, mercury porosimetry and elemental analysis. During the process of interpenetrating polymerization, the chain propagation obeys Bernoullian statistical law, and no grafting polymerization has been observed. The content of cyano group in the resulting IPN resins can be adjusted by the amount of acrylonitrile added. The morphology of the IPN resins basically resembles that of the polyvinyl chloride bead, whereas the pore structures vary to a certain degree
文摘以山杏核壳为原料,采用大孔树脂纯化山杏核壳提取液中的总黄酮,利用单因素试验和正交试验优化D101大孔树脂纯化山杏核壳总黄酮的工艺条件。结果表明:在上样溶液质量浓度0.3 mg/m L、p H 2、流速2 m L/min的条件下进行纯化实验,大孔树脂对山杏核壳总黄酮的平均吸附率为75.20%。山杏核壳总黄酮的质量分数可达51.63%,表明D101大孔树脂对山杏核壳总黄酮有较好的纯化效果,且工艺重复性和稳定性良好。