Accession Number : AD0712139

Title :   BLEACHING OF PULP WITH POTASSIUM PERMANGANATE,

Corporate Author : SVENSKA TRAFORSKNINGSINSTITUTET STOCKHOLM

Personal Author(s) : Lagergren,Hakan ; Norrstrom,Hans ; Randahl,Ulf

Report Date : 1969

Pagination or Media Count : 6

Abstract : A study has been made of the influence of permanganate charge, reaction time and temperature on the brightness and viscosity of pulp bleached with potassium permanganate. This has enabled an evaluation of the use of potassium permanganate in the production of semi- or fully bleached pulp. Increased chemical charge, temperature and time increase the brightness of the pulp, however, when certain threshold values are exceeded the increase obtained is small. A brightness of 90% SCAN can be achieved using permanganate in the final bleaching stage although the same brightness is obtained more cheaply with chlorine dioxide. (Author)

Descriptors :   (*WOOD PULP, BLEACHING AGENTS), (*PERMANGANATES, *BLEACHING AGENTS), TEMPERATURE, VISCOSITY, BRIGHTNESS, SWEDEN, CHLORINE COMPOUNDS

Subject Categories : Wood, Paper and Related Forestry Products
      Mfg & Industrial Eng & Control of Product Sys

Distribution Statement : APPROVED FOR PUBLIC RELEASE