The Effect of Oxidized White Liquor on Pulp Brightness in Peroxide Bleaching in Pulp Mills-Reference-Cited by-同舟云学术

The Effect of Oxidized White Liquor on Pulp Brightness in Peroxide Bleaching in Pulp Mills

Published:2014-06 Issue: Volume:974 Page:230-234
ISSN:1662-8985
Container-title:Advanced Materials Research
language:
Short-container-title:AMR

Author:

Khajornpaisan Nopdanai¹,Rojanarowan Napassavong¹

Affiliation:

1. Chulalongkorn University

Abstract

This paper aims to study the effect of using Oxidized White Liquor (OWL) on pulp brightness in peroxide bleaching. The proper setting of the concentration of hydrogen peroxide, the bleaching temperature, and the bleaching time was also studied. The Central Composite Design (CCD) was proposed to generate necessary experimental runs. Regression analysis was used to determine the relationship equation. Optimization helped determine that to obtain the targeted brightness of 83%, the ratio between the volume of OWL and sodium hydroxide should be 50:50. This ratio should be used with a concentration of hydrogen peroxide at 6.9 g/kg, a bleaching temperature of 90 oC and a bleaching time of 75 minutes.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Link

https://www.scientific.net/AMR.974.230.pdf

Reference15 articles.

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