Paper recycling aid

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste


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D21C 502




A process for recycling waste paper is disclosed in which an alkali metal Kurrol's salt, preferably potassium Kurrol's salt, is added to the process water.

patent: 1245839 (1917-11-01), Waring et al.
patent: 2042465 (1936-06-01), Hines
patent: 2743178 (1956-04-01), Krodel et al.
patent: 2872313 (1959-02-01), House et al.
patent: 3346487 (1967-10-01), Irani et al.
patent: 4176054 (1979-11-01), Kelley
patent: 4416727 (1983-11-01), Elton et al.


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