Applications of capillary ion electrophoresis in the pulp and paper industry

摘要: Abstract Alkaline (kraft) pulping of wood accounts for more than 60% paper production. Anions critical to the performance kraft process are presently determined by wet chemical methods and recently ion chromatography. Chemical recovery liquor regeneration efficiencies evaluated monitoring these ions: Cl−, S2O2−3, SO−23, SO−24, S2−, OH−, CO2−3, Na+ K+. Capillary electrophoresis is a novel analytical technique that optimized rapid charged species. The applied first time on streams using indirect UV detection at 254 nm 214 monitor results used evaluate important variables such as sulfidity (white liquor), reduction efficiency (recovery furnace performance), causticization (slaker performance). This presents obtained off-line ions found in white, black green liquors from mills. potential capillary cost effective processing suggested.