The model waste water of cationic youhaocry1 yellow X-8GL dye was treated with the copolymer of lignosulfonate calcium and acrylamide.The optimization tests were conducted regarding the four effect factors,e.g.,the ra...The model waste water of cationic youhaocry1 yellow X-8GL dye was treated with the copolymer of lignosulfonate calcium and acrylamide.The optimization tests were conducted regarding the four effect factors,e.g.,the rate between lignosulfonate calcium and acrylamide,the amount of flocculating agent,PHvalue and the initial concentration of the dye.It was concluded that the enhancement of rate between lignosulfonate calcium and acrylamide can not only reduce the cost but also improve the decolourization rate. As a decolouring agent,the copolymer was more suitable for higher initial concentration and neutral condition.85%of decolourization rate could be obtained under suitable dosage.展开更多
Various factors affecting the graft of ilgnin with acrylamide,including the differenr initiation systems,initiator concentration,monomer dose,reaction temperature and liquor ratio were investigated with mass weight an...Various factors affecting the graft of ilgnin with acrylamide,including the differenr initiation systems,initiator concentration,monomer dose,reaction temperature and liquor ratio were investigated with mass weight and production ratio as aim values.It can be concluded that satisfactory graft results could be obtained at 40℃ for 48h under the conditions of 05×10-2 mol/L of K2S2O8/Na2S2O3 initiator,1.4mol/L acrylamide monomer and 1∶50 of liquor ratio.Furthermore,the graft copolymerization was further testified by IR spectra.展开更多
文摘The model waste water of cationic youhaocry1 yellow X-8GL dye was treated with the copolymer of lignosulfonate calcium and acrylamide.The optimization tests were conducted regarding the four effect factors,e.g.,the rate between lignosulfonate calcium and acrylamide,the amount of flocculating agent,PHvalue and the initial concentration of the dye.It was concluded that the enhancement of rate between lignosulfonate calcium and acrylamide can not only reduce the cost but also improve the decolourization rate. As a decolouring agent,the copolymer was more suitable for higher initial concentration and neutral condition.85%of decolourization rate could be obtained under suitable dosage.
文摘Various factors affecting the graft of ilgnin with acrylamide,including the differenr initiation systems,initiator concentration,monomer dose,reaction temperature and liquor ratio were investigated with mass weight and production ratio as aim values.It can be concluded that satisfactory graft results could be obtained at 40℃ for 48h under the conditions of 05×10-2 mol/L of K2S2O8/Na2S2O3 initiator,1.4mol/L acrylamide monomer and 1∶50 of liquor ratio.Furthermore,the graft copolymerization was further testified by IR spectra.