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A. Smara, R. Delimi, C. Poinsignon, J. Sandeaux (2005)
Electroextraction of heavy metals from diluted solutions by a process combining ion-exchange resins and membranesSeparation and Purification Technology, 44
B. Goderis (2003)
Thermal behaviour and real-time morphology of polyolefin systemsFibres & Textiles in Eastern Europe, 11
J. Tiihonen, Eeva-Liisa Peuha, M. Latva-Kokko, Sirpa Silander, E. Paatero (2005)
Subcritical water as eluent for chromatographic separation of carbohydrates using cation-exchange resinsSeparation and Purification Technology, 44
S. Arm, D. Blanchard, S. Fiskum (2005)
Chemical degradation of an ion exchange resin processing salt solutionsSeparation and Purification Technology, 43
G. Heitmann, G. Dahlhoff, J. Niederer, W. Hölderich (2000)
Active Sites of a [B]-ZSM-5 Zeolite Catalyst for the Beckmann Rearrangement of Cyclohexanone Oxime to CaprolactamJournal of Catalysis, 194
E. Arevalo, M. Rendueles, A. Fernández, M. Díaz (2000)
Equilibrium and simulation of the operation for the adsorption of albumin proteins in an iminodiacetic-Cu bounded ion exchange resin (IMAC)Separation and Purification Technology, 18
M. Ohtsuka, Yoshi-ichi Suzuki, T. Sakai, A. Netravali (2004)
Comparison of effects of ultraviolet and60Co gamma ray irradiation on nylon 6 mono-filamentsFibers and Polymers, 5
Yong-Sil Kwak, H. Kim (2002)
Preparation and properties of waterborne polyurethanes based on triblock glycol (CL)4.5-PTMG-(CL)4.5 for water vapor permeable coatings: Effect of soft segment contentFibers and Polymers, 3
R. Prasad, S. Vashisht (1996)
Ammoximation of Cyclohexanone by Nitric Oxide and Ammonia: A One-Step Process for Synthesis of PolycaprolactamJournal of Catalysis, 161
H. Maradiya, V. Patel (2002)
Dyeing performance of disperse dyes based on 2-aminothiazole for cellulose triacetate and nylon fibersFibers and Polymers, 3
Abstract Caprolactam is the most important raw material for making Nylon 6 fibers and its quality directly determines the quality of Nylon. So it is necessary to study the techniques and methods to remove the colorful impurities from caprolactam. In this paper, the decolorization of caprolactam aqueous solution by anion exchange resins was studied and the decoloring abilities of five commercial resins were investigated. The regeneration of the resins was also studied, too. This study shows that the resin AMTX202 have excellent decoloring ability in the column experiment and that the decoloring efficiency is correlated with the volume of resins packed and is slightly affected by the flow rate and regenerating times. The fact that the resins can be regenerated and reused without affecting the efficiency of decolorization will decrease the cost of the treatment and operation in the industry. The adsorption of colored compounds with anion exchange resins in the packed columns seems to be technically feasible.
Fibers and Polymers – Springer Journals
Published: Jun 1, 2006
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