Nylon recycling with subcritical water ‘halves CO2 emissions’

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A ‘breakthrough’ in the chemical recycling of nylon uses subcritical water to obtain monomers in just minutes – halving CO2 emissions to produce high-grade monomers.

Nylon filament extrusion
Toray is efficiently recovering high yields of two monomers needed for nylon 66.

TOKYO – Chemical giant Toray Industries, Inc., says it has taken a major new step forward in the depolymerisation and recycling of nylon 66 using ‘subcritical water’ – to give virgin-grade monomers essential for use in both industrial and apparel textile fibres.

The company says using water in the subcritical state allows for the uniform depolymerisation of nylon 66 resins in only a matter of minutes, before it is then recovered as valuable, clean raw monomer material.

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