Hydrogen peroxide obtained via direct synthesis as alternative raw material for ultrapurification process to produce electronic grade chemical

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Ricardo Abejón, Azucena Abejón, Pierdomenico Biasi, Nicola Gemo, Aurora Garea, Tapio Salmi, Jose Angel Irabien
Publication year: 2016
Journal: Journal of Chemical Technology and Biotechnology
Volume number: 91
Issue number: 4
Start page: 1136
End page: 1148
eISSN: 1097-4660


Abstract

BACKGROUND
The catalytic direct synthesis of hydrogen peroxide is a highly interesting alternative process to avoid the current anthraquinone route because it implies significant sustainability improvements. Among all the peroxide applications, its use as an electronic chemical requires very low metallic content. The employment of direct synthesis peroxide as raw material for the ultrapurification process has not been investigated before, so its viability is still pending evaluation.

RESULTS
Although the improvements of catalyst or reactor performance of the direct synthesis process were not defined as objectives of the work, a maximum peroxide concentration of 2.3% was obtained, which is a very good result considering the low pressure used. Some relationships between the measured metallic concentrations in the obtained chemical and the operating conditions have been very useful to identify the most important conditions (selection of appropriate quality chemicals and proper materials for the installation) to promote the production of hydrogen peroxide with low metallic content. The technical competitiveness of this alternative ultrapurification process was clearly demonstrated as the number of required membrane stages (from 1 to 6 depending on the product quality) is lower than that required by the traditional case. Besides, the process can be considered economically viable if the direct synthesis peroxide can be produced with a total cost below 36.5 $ m−3.

CONCLUSION
Further investigation, specifically focused on holistic approaches, is still necessary in order to assess the total costs of hydrogen peroxide production by direct synthesis. This way, the current available information could be complemented and the competitiveness of this direct route to obtain hydrogen peroxide for electronic grade chemical production could be more clearly defined.

Last updated on 2019-19-08 at 06:05