Effects of Polyoxometalate Delignification Using 10-Molybdo-2-Vanadophosphoric Acid on Mechanical Pulp, 2000 Pulping / Process & Product Quality Conference Proceedings
B. D. Rosin, L. A. Lucia--Polyoxometalate (POM) delignification has been shown as an effective, environmentally friendly, and cost-effective way to improve both the pulping and bleaching processes in Kraft pulps. It has also been shown as a highly selective for softwood lignin as well as being easily recycled and reused. This report will provide data suggesting a possible application of POMs in mechanical pulp to enhance strength and performance. This work is the first to report on the results of treating mechanical pulps with polyoxometalates.
In this work, 5 mM of H5[PV2Mo10O40] is used to treat thermomechanical slush pulp at 3% consistency at 125°C at 50 psig. Although this is a delignification reaction, yield is only slightly reduced over the control sample, however, the reaction produced significant improvements in many physical properties like tensile strength and modulus of elasticity.