Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste
Patent
1975-05-30
1977-03-22
Lindsay, Jr., Robert L.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Waste paper or textile waste
162 7, 162 8, 209 46, 209 47, 209166, 209171, 209211, 210 53, D21C 502
Patent
active
040135055
ABSTRACT:
A method for deinking printed wastepapers in a system of separators through which printed wastepapers, previously impregnated with surface-active agents and alkalis, and repulped in the presence of an organic hydrocarbon compound and high-adsorptive flakes obtained by precipitating solutions of metal soaps of fatty or bituminous acids with solutions of salts of alkaline earths, are forced. The adsorptive flakes containing printing ink are separated from the repulped paper stock by latent vortex action.
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Schwartz, et al., Surface Active Agents & Detergents, vol. II, 1958, pp. 26 & 27.
Balcar Cestmir
Havranek Jaroslav
Kostka Antonin
Lalak Marcel
Corbin Arthur L.
Lindsay, Jr. Robert L.
Vyzkumny ustav papieru a celulosy
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