Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste
Patent
1995-08-21
1997-06-03
Czaja, Donald E.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Waste paper or textile waste
162 8, D21C 502
Patent
active
056350236
ABSTRACT:
A flotation process for removing toner particles from photocopied paper which utilizes the following compound as a collector: ##STR1## wherein R is an alkyl, aryl, alkylaryl or allyl group having from 4-28 carbon atoms and, preferably from 6-10 carbon atoms, and M represents an alkali metal, or alkaline earth metal radical or a hydrogen atom.
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Doshi, Mahendra, "Recycling of Photocopied and Laser-Printed Papers", Recycled Paper Technology, 1994, pp. 128-131.
Czaja Donald E.
Nguyen Dean T.
Nord Kaolin Company
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