PROCESS FOR RECOVERING STARCH FROM RECYCLED PAPER OR CARDBOARD, USE OF THIS STARCH

摘要

The present invention relates to a process for recovering starch present in paper and / or cardboard, by: [a] preparation of an aqueous suspension A of fibers, [b] treatment, of the aqueous suspension A and formation of two fractions: * fraction B containing water, fibers, fines and fillers, * fraction C containing water and dissolved and / or colloidal starch, fines and fillers, [c] separation of fraction C, in two fractions: * fraction D containing water and dissolved starch, * fraction E containing water and colloidal starch, fines and fillers, [d] use or treatment of fraction D, [e] use or recovery of fraction E.