Integrated pulping process of waste paper yielding...

Details Integrated pulping process of waste paper yielding... Integrated pulping process of waste paper yielding...

D - Textiles, Paper

21

C

D21C 5/02 (2006.01) D21C 9/10 (2006.01) D21C 9/147 (2006.01) D21C 9/16 (2006.01)

Patent

CA 2082557

This invention provides an integrated system for recovering fibers from mixed grades of waste paper and simultaneously cleaning (deinking) waste fibers. The system comprises a mild alkaline pulping process with oxygen and hydrogen peroxide followed by rapid decompression of fibers and then by hot washing.

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