Triboelectric Separation of Binary Plastic Mixture
This paper presents the results of an experimental study on the performance of a triboelectric separator of plastic mixtures used for recycling. The separator consists of four cylindrical electrodes. The principle behind the separation technique is based on the difference in the Coulomb force acting on the plastic particles after triboelectric charging. The separation of mixtures of acrylonitrile butadiene styrene (ABS) and polystyrene (PS) using this method was studied. The effects of the triboelectric charging time and applied voltage on the separation efficiency were investigated. The experimental results confirm that it is possible to obtain a high purity and recovery rate for the initial compositions considered in this study.
[1] J. Cui and E. Forssberg, "Mechanical recycling of waste electric and
electronic equipment: a review," J. of Hazardous materials, B99, 2003,
pp. 243-263.
[2] M. J. Pearse and T. J. Hicky, "The separation ofmixed plastics using a dry,
triboelectric technique", Resource Recovery and Conservation, vol. 3,
1978, pp. 179-190.
[3] Y. Matsushita, N. Mori, and T. Sometani, "Electrostatic separation of
plastics by a friction mixer with rotary blades (in Japanese)",
Transactions of IEEE Japan, vol. 117-D, No. 12, 1997´╝î1449-1454.
[4] Y. Higashiyama and K. Asano, "Recent progress in electrostatic
separation technology," Particulate science and technology, vol. 16,
1998, pp. 77-90.
[5] I. I. Inculet, G. S. P. Castle, and J. D. Brown, "Electrostatic separation of
plastics for recycling", Particulate Science and Technology, vol. 16,
1998, 91-100.
[6] C. Xiao, M. B. Biddle, and M. M. Fisher, "Electrostatic separation and
recovery of mixed plastics", SPE Recycling Div. Annual Recycling
Conference, 1999, 221-230.
[7] G. Dodbiba, A. Shibayama, T. Miyazaki and T. Fujita, "Triboelectrostatic
separation of ABS, PS and PP plastic mixture", Materials Transactions,
vol. 44-1, 2003, 161-166.
[8] G. Dodbiba, A. Shibayama, J. Sadaki, and T. Fujita, "Combination of
Triboelectrostatic Separation and Air Tabling for Sorting Plastics from a
Multi-Component Plastic Mixture", Materials Transactions, Vol. 44,
No.12, 2003, 2427-2435.
[9] J. Wei, and M. J. Realff, "Design and optimization of free-fall
electrostatic separators for plastics recycling", AIChE Journal, Vol. 49,
No. 12, 2003, 3138-3149.
[10] A. Iuga, L. Calin, V. Neamtu,A. Mihalcioiu, and L. Dascalescu,
"Tribocharging of plastics granulates in a fluidized bed devices", J.
Electrostatics, vol. 63, 2005, 937-942.
[11] M. Saeki, "Vibratory separation plastic mixturesusing triboelectric
charging", Particulate Science and Technology, vol. 24, 2006, 153-164.
[12] M. Saeki, "Triboelectric separation of three-component plastic mixture",
Particulate Science and Technology, vol. 26, 2008, 494-506.
[1] J. Cui and E. Forssberg, "Mechanical recycling of waste electric and
electronic equipment: a review," J. of Hazardous materials, B99, 2003,
pp. 243-263.
[2] M. J. Pearse and T. J. Hicky, "The separation ofmixed plastics using a dry,
triboelectric technique", Resource Recovery and Conservation, vol. 3,
1978, pp. 179-190.
[3] Y. Matsushita, N. Mori, and T. Sometani, "Electrostatic separation of
plastics by a friction mixer with rotary blades (in Japanese)",
Transactions of IEEE Japan, vol. 117-D, No. 12, 1997´╝î1449-1454.
[4] Y. Higashiyama and K. Asano, "Recent progress in electrostatic
separation technology," Particulate science and technology, vol. 16,
1998, pp. 77-90.
[5] I. I. Inculet, G. S. P. Castle, and J. D. Brown, "Electrostatic separation of
plastics for recycling", Particulate Science and Technology, vol. 16,
1998, 91-100.
[6] C. Xiao, M. B. Biddle, and M. M. Fisher, "Electrostatic separation and
recovery of mixed plastics", SPE Recycling Div. Annual Recycling
Conference, 1999, 221-230.
[7] G. Dodbiba, A. Shibayama, T. Miyazaki and T. Fujita, "Triboelectrostatic
separation of ABS, PS and PP plastic mixture", Materials Transactions,
vol. 44-1, 2003, 161-166.
[8] G. Dodbiba, A. Shibayama, J. Sadaki, and T. Fujita, "Combination of
Triboelectrostatic Separation and Air Tabling for Sorting Plastics from a
Multi-Component Plastic Mixture", Materials Transactions, Vol. 44,
No.12, 2003, 2427-2435.
[9] J. Wei, and M. J. Realff, "Design and optimization of free-fall
electrostatic separators for plastics recycling", AIChE Journal, Vol. 49,
No. 12, 2003, 3138-3149.
[10] A. Iuga, L. Calin, V. Neamtu,A. Mihalcioiu, and L. Dascalescu,
"Tribocharging of plastics granulates in a fluidized bed devices", J.
Electrostatics, vol. 63, 2005, 937-942.
[11] M. Saeki, "Vibratory separation plastic mixturesusing triboelectric
charging", Particulate Science and Technology, vol. 24, 2006, 153-164.
[12] M. Saeki, "Triboelectric separation of three-component plastic mixture",
Particulate Science and Technology, vol. 26, 2008, 494-506.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:55173", author = "M. Saeki", title = "Triboelectric Separation of Binary Plastic Mixture", abstract = "This paper presents the results of an experimental study on the performance of a triboelectric separator of plastic mixtures used for recycling. The separator consists of four cylindrical electrodes. The principle behind the separation technique is based on the difference in the Coulomb force acting on the plastic particles after triboelectric charging. The separation of mixtures of acrylonitrile butadiene styrene (ABS) and polystyrene (PS) using this method was studied. The effects of the triboelectric charging time and applied voltage on the separation efficiency were investigated. The experimental results confirm that it is possible to obtain a high purity and recovery rate for the initial compositions considered in this study.
", keywords = "Coulomb force, recycling, triboelectric separator, waste plastics.", volume = "4", number = "10", pages = "644-4", }
