ScholarLens Back to search
2010•China Pulp & Paper IndustryRequires access

Studies on following bleaching after oxygen delignification for sulfite pulp

Wang Qiu-yan

Open publisher page 0 citations

Abstract

The main factors affecting H2O2 bleaching of sulfite bagasse pulp after extensive oxygen delignification were studied in this paper.Results show that the H2O2 dosage is the prominent factor,the optimized bleaching conditions are H2O2 dosage 3.0% and NaOH dosage 1.5% with pulp consistency of 10% at temperature of 80℃ for 2h.The bleached pulp can be got with Kappa number of 8.9,the viscosity of 753.2mL/g and the brightness of 72.6% ISO.The methods to improve whiteness were proposed further.

About this research paper

What this paper is about

The main factors affecting H2O2 bleaching of sulfite bagasse pulp after extensive oxygen delignification were studied in this paper.Results show that the H2O2 dosage is the prominent factor,the optimized bleaching conditions are H2O2 dosage 3.0% and NaOH dosage 1.5% with pulp consistency of 10% at temperature of 80℃ for 2h.The bleached pulp can be got with Kappa number of 8.9,the viscosity of 753.2mL/g and the brightness of 72.6% ISO.The methods to improve whiteness were proposed further.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

The main factors affecting H2O2 bleaching of sulfite bagasse pulp after extensive oxygen delignification were studied in this paper.Results show that the H2O2 dosage is the prominent factor,the optimized bleaching conditions are H2O2 dosage 3.0% and NaOH dosage 1.5% with pulp consistency of 10% at temperature of 80℃ for 2h.The bleached pulp can be got with Kappa number of 8.9,the viscosity of 753.2mL/g and the brightness of 72.6% ISO.The methods to improve whiteness were proposed further.

Key concepts: Sulfite, Kappa number, Pulp (tooth), Pulp and paper industry, Chemistry, Oxygen, Waste management, Kraft process

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Studies on following bleaching after oxygen delignification for sulfite pulp — Research Paper | ScholarLens