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Title
Highly reactive cotton linters from refining of prehydrolysed AQ-soda pulp
Authors
Nahed A. Abd El-Ghany
Received
February 17, 2010
Published
Volume 44 Issue 7-8 July-August
Keywords
anthraquinone (AQ), cotton linters, prehydrolysis-soda pulping, cold refining, hot refining
Abstract
Prehydrolysed cotton linters were subjected to soda- and soda-AQ pulping, followed by hot and cold refining. The presence of AQ in different concentrations during soda pulping resulted in a more open and accessible fine structure, especially with 0.1% AQ concentration; compared to hot refining, cold refining was more efficient. Further improvement in cotton linter characteristics was observed when AQ was added through the acid prehydrolysis step, preserving soda pulping, especially with cold alkali refining.
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