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Time, Temperature and Amount of Distilled Water Effects on the Purity and Yield of Bis(2-hydroxyethyl) Terephthalate Purification System

H.W. Goh  -  Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
*Salmiaton Ali  -  Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
N. Abdullah  -  Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
A. Idris  -  Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

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Abstract

Polyethylene terephthalate (PET) bottle is one of the common plastic wastes existed in the municipal solid waste in Malaysia. One alternative to solve the abundant of PET wastes is chemical recycling of the wastes to produce a value added product. This technology not only can decrease the PET wastes in landfill sites but also can produce many useful recycled PET products. Bis(2-hydroxyethyl) terephthalate (BHET) obtained from glycolysis reaction of PET waste was purified using crystallization process. The hot distilled water was added to glycolysis product followed by cooling and filtration to extract BHET in white solid form from the product. The effect of three operating conditions namely crystallization time, crystallization temperatures and amount of distilled water used to the yield of crystallization process were investigated. The purity of crystallization products were analyzed using HPLC and DSC. The optimum conditions of 3 hours crystallization time, 2 °C crystallization temperature and 5:1 mass ratio of distilled water used to glycolize solid gave the highest yield and purity of the crystallization process. © 2015 BCREC UNDIP. All rights reserved

Received: 12nd August 2014; Revised: 4th February 2015; Accepted: 5th February 2015

How to Cite: Goh, H.W., Salmiaton, A., Abdullah, N., Idris, A. (2015). Time, Temperature and Amount of Distilled Water Effects on the Purity and Yield of Bis(2-hydroxyethyl) Terephthalate Purification System. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (2): 143-154. (doi:10.9767/bcrec.10.2.7195.143-154)

Permalink/DOI: http://dx.doi.org/10.9767/bcrec.10.2.7195.143-154

 

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Keywords: PET waste; Optimum conditions; BHET; Crystallization Process; PET Waste; Yield
Funding: Universiti Putra Malaysia

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Section: Original Research Articles
Language : EN
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  1. Scheirs, J., Long, T.E. eds. (2003). Modern Polyester: Chemistry and Technology of Polyesters and Copolyesters. Chichester, West Sussex: John Wiley & Sons, Ltd
  2. Barnes, K.A., Damant, A.P., Startin, J.R., Castle, L. (1995). Qualitative Liquid Chromatographic Atmospheric-Pressure Chemical-Ionization Mass Spectrometric Analysis of Polyethylene Terephthalate Oligomers, Journal of Chromatography A, 712: 191-199
  3. Begley, T.H., Dennison, J.L., Hollifield, H.C. (1990). Migration into Food of Polyethylene Terephthalate (PET) Cyclic Oligomers from PET Microwave Suspector Packaging, Food Additives & Contaminants, 7: 797-803
  4. Anon, (2012). Industry News, PET Packaging Market to Hit $57 Billion by 2017, Pira International
  5. Ghaemy, M., Mossaddegh, K. (2005). Depolymerisation of Poly(Ethylene Terephthalate) Fibre Wastes Using Ethylene Glycol, Polymer Degradation and Stability, 90: 570-576
  6. Drelich, J., Kim, J.H., Payne, T., Miller, J.D., Kobler, R.W. (1999). Purification of Polyethylene Terephthalate from Polyvinyl
  7. Chloride by Froth Flotation for the Plastics (Soft-Drink Bottle) Recycling Industry, Separation and Purification Technology, 15: 9-17
  8. Curlee, T.R., Das, S. eds. (1992). Plastic Wastes: Management, Control, Recycling and Disposal (Pollution Technology Review), Norwich, New York: William Andrew Publishing
  9. Awaja, F., Pavel, D. (2005). Recycling of PET, European Polymer Journal, 41: 1453-1477
  10. Goje, A.S. (2005). Recycling of Waste Poly(Ethylene Terephthalate) with Naphthalene and Neutral Water, Polymer-Plastics Technology and Engineering, 44: 1631-1643
  11. Goje, A.S., Mishra, S. (2003). Chemical Kinetics, Simulation and Thermodynamics of Glycolytic Depolymerization of Poly(Ethylene Terephthalate) Waste with Catalyst Optimization for Recycling of Value Added Monomeric Products, Macromolecular Materials and Engineering, 288: 326-336
  12. Sako, T., Sugeta, T., Otake, K., Nakazawa, N., Sato, M., Namiki, K., Tsugumi, M. (1997). Depolymerization of Polyethylene Terephthalate to Monomers with Supercritical Methanol, Journal of Chemical Engineering of Japan, 30: 342-346
  13. Shukla, S.R., Harad, A.M. (2006). Aminolysis of Polyethylene Terephthalate Waste, Polymer Degradation and Stability, 91: 1850-1854
  14. Jain, A., Soni, R.K. (2007). Spectroscopic Investigation of End Products Obtained by Ammonolysis of Poly(Ethylene Terephthalate) Waste in the Presence of Zinc Acetate as a Catalyst, Journal of Polymer Research, 14: 475-481
  15. Xi, G.X., Lu, M.X., Sun, C. (2005). Study on Depolymerization of Waste Polyethylene Terephthalate into Monomer of Bis(2-Hydroxyethyl Terephthalate), Polymer Degradation and Stability, 87: 117-120
  16. Shukla, S.R., Harad, A.M., Jawale, L.S. (2008). Recycling of Waste PET into Useful Textile Auxiliaries, Waste Management, 28: 51-56
  17. Pilati, F., Toselli, M., Stramigioli, C., Baldi, G., Capra, M., Osella, M., BavaPilone, G. (1996). Process to Prepare Bis (2-Hydroxyethyl) Terephthalate, European Patent, 0 723 951 A1
  18. Braithwaite, A., Smith, F.J. eds. (2013). Chromatographic Methods, New York, New York: Springer
  19. Abu Bakar, D.R., Ahmad, I., Ramli, A. (2006). Chemical Recycling of PET Waste from Soft Drink Bottles to Produce a Thermosetting Polyester Resin, Malaysian Journal of Chemistry, 8: 22-26

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