PROCESS FOR DEINKING WASTEPAPER

A process for drinking wastepaper with an aqueous system, which comprises: (a) contacting wastepaper with an aqueous system which contains an agent selected from the group consisting of: (i) a mixture of one or more guaternary ammonium salts and one or more smectite-type clays; and (ii) one or more...

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Bibliographic Details
Main Authors CODY, CHARLES A, MAGAURAN, EDWARD D
Format Patent
LanguageEnglish
French
Published 05.09.2000
Edition5
Subjects
APPARATUS THEREFOR
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PAPER-MAKING
PRODUCTION OF CELLULOSE
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
REGENERATION OF PULPING LIQUORS
TEXTILES
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Summary:A process for drinking wastepaper with an aqueous system, which comprises: (a) contacting wastepaper with an aqueous system which contains an agent selected from the group consisting of: (i) a mixture of one or more guaternary ammonium salts and one or more smectite-type clays; and (ii) one or more organically modified smectite-type clays; and (b) recovering deinked paper pulp from the aqueous system.
Bibliography:Application Number: CA19922067446