Treatment of Pulp

摘要

A method of treating a fibre pulp mixture comprises: (a) separating the fibre pulp mixture into at least two fractions to form a coarse fraction and a fine fraction; (b) bleaching the coarse fraction from (a); and (c) precipitating an alkaline earth metal carbonate in the fine fraction from (a). The products from steps (b) and (c) may combined in an integrated paper making process.