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《China Synthetic Fiber Industry》 2006-06
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Application of ion retardation in impurity removal of solvent for PAN fiber

Wu Jingzhe, Qiao Fulai, Liu Zhongen, Ye Xiaojun (Acrylic Fiber Plant, Daqing Petrochemical Co. , Daqing 163714)  
The characteristics of ion-hinder resin YC-207 were introduced. The effects of process parameters on the adsorption capacity of the resin were discussed. The sodium thiocyanate (NaSCN) solution was subjected to impurity removal and decolourization with YC-207 resin according to ion retardant principle, which had the advantages of high recovery ratio, satisfied purification effect and low cost. The soluble non-volatile impurities (NVI) content in the final solvent was lower than 5.5% and the analytical colority (Pt-Co) was below 350. The quality of PAN fiber was guaranteed effectively with the first-rate product above 99.5%.
【CateGory Index】: TQ342.31
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