Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Decolorization of aqueous caprolactam solution by anion-exchange resins

Decolorization of aqueous caprolactam solution by anion-exchange resins 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fibers and Polymers Springer Journals

Decolorization of aqueous caprolactam solution by anion-exchange resins

Fibers and Polymers , Volume 7 (2): 5 – Jun 1, 2006

Loading next page...
 
/lp/springer-journals/decolorization-of-aqueous-caprolactam-solution-by-anion-exchange-UVHYwAAIe8

References (10)

Publisher
Springer Journals
Copyright
2006 The Korean Fiber Society
ISSN
1229-9197
eISSN
1875-0052
DOI
10.1007/BF02908254
Publisher site
See Article on Publisher Site

Abstract

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.

Journal

Fibers and PolymersSpringer Journals

Published: Jun 1, 2006

There are no references for this article.