Sequential bleaching of de-inked paper pulp with sodium bisulfite, dithionite and borohydride
作者： Patrick Meyers , David L. K. Wang
DOI:
关键词: Aqueous solution 、 Inorganic chemistry 、 Sodium bisulfite 、 Sodium borohydride 、 Dithionite 、 Sodium hydroxide 、 Pulp (paper) 、 Borohydride 、 Acetic acid 、 Chemistry
摘要: Paper pulp, especially recycled paper pulp which has been deinked, is bleached in a synergistic two-stage process first with sodium bisulfite and then borohydride. The borohydride preferably added an aqueous mixture hydroxide. A weak acid such as acetic may be to the advance further brightness gain.
lens.org 参考文章(8)
Maurice Hache, Sheri Prosperi, Process for de-inking recycled paper pulp with a reducing agent ,(1993)
Michel Devic, Lucien Bourson, Bleaching of deinked paper/wood pulp ,(1993)
Mark J. Kirschner, Bradley S. Kirk, Oxygen delignification of wood pulp ,(1977)
Cyril Heitner, Norman Liebergott, Multistage brightening of high yield and ultra high-yield wood pulps ,(1985)
Kindron Robert R, Cartsunis Louis P, Production of wood pulps including treatment of cellulosic fibers with bisulfite ion followed by alkali metal borohydride ,(1964)
Petter Tibbling, Multi peroxide stage mechanical pulp bleaching ,(1986)
Berndt Dr Wilhelm, Verfahren zum reduzierenden Bleichen von Holzschliff und anderen Papierfaserstoffen ,(1966)