Deinking wastepaper using reaction products of castor oil with a

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

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162 8, D21C 502

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active

055058175

ABSTRACT:
Wastepaper containing printing ink is refined in the presence of the reaction products of castor oil with an alkoxylated fatty acid, alcohol, amine, amide, phosphate ester, polyhydroxy alcohol, or sorbitan, and the detached printing ink particles are subsequently removed from the paper stock suspensions by flotation or washing.

REFERENCES:
Ullmanns Encyclopadie der technischen Chemie, 4th Ed. vol. 17, pp. 570-571 (1979).
Wochenblat fur Papierfabrikation 17, 646-649 (1985).
J. Am. Oil Chem. Soc. 45, 374 (1968).
"Chemische Technologie", vol. 7, pp. 131-132, Carl-Hanser-Verlag, Munchen/Wein (1986).

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