Accession Number : AD0736511

Title :   Production of Bleached Sulfate Pulps from Pinewood, Birchwood, and Pine and Birchwood Blends,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Surewicz,Wlodzimierz ; Wandelt,Pawel

Report Date : 18 NOV 1971

Pagination or Media Count : 17

Abstract : In the article the authors present the results of investigations on the production and properties of bleached sulfate pulps from pine wood, birchwood, and various blends of these raw materials. The degree of dilution, productivity, viscosity, color, and the resistance features of the respective pulps were evaluated. The authors determined the indicant and absolute demand for active chlorine in their bleaching process up to 86 to 90 percent of brightness by the CEHDED method. The report lists data concerning the characteristics of bleached pulps, the influence of the share of birch fibers in the pulp, and the influence of the presence of chlorine dioxide in the total amount of active chlorine used for bleaching.

Descriptors :   (*WOOD PULP, PRODUCTION), BLEACHING AGENTS, CHLORINE COMPOUNDS, OXIDES, VISCOSITY, COLORS, BRIGHTNESS, STRUCTURAL PROPERTIES, POLAND

Subject Categories : Wood, Paper and Related Forestry Products

Distribution Statement : APPROVED FOR PUBLIC RELEASE