Study of Flotation Deinking of Old Magazine and Mixed Office Waste Paper

Rong Gang Li; Xiao Feng Xie; Chuan Shan Zhao

doi:10.4028/www.scientific.net/AMR.550-553.3267

Paper Titles

Research on the Prehydrolysis Technology of Poplar and Bamboo Dissolving Pulp
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Research on Production of Hand Towel from the Poplar Extruding Mechanical Pulp (EMP)
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Preparation of the Modified Polyamide Polyamine Enhancer and its Application in Tube Roll Base Paper
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Some Properties and Disposal Process of Paper Sludge
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Study of Flotation Deinking of Old Magazine and Mixed Office Waste Paper
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Linear Regression Analysis on Dyeing of Feather Fibers with Acid Dyes
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Modification of Softwood Bleached Pulp Suitable for Viscose Cellulose with High Liquid Water
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Study on Comprehensive Evaluation Model of Art Paper Printability
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Synthesis and Effects of Modified Fiber on Paper Performance
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 550-553Study of Flotation Deinking of Old Magazine and...

Study of Flotation Deinking of Old Magazine and Mixed Office Waste Paper

Abstract:

The effect of flotation parameters such as flotation consistency, temperature, flotation time, air to pulp ratio, and velocity of pulp flow (turbulence level) on OMG/MOW deinking efficiency was studied by using a high-consistency laboratory pulper and a laboratory deinking cell. The optimized flotation conditions were: flotation consistency 1.1%, 40°C, 8min, air to pulp ratio 40%, velocity of pulp flow 3.5m/s and pH 9.0. By using the optimized flotation conditions, the deinked pulp brightness could reach 70.56%ISO, 11.78%ISO higher than that of the control, the effective residual ink concentration was 108.46 mg/kg, which less than 378.14mg/kg of the control, theoretic deinking efficiency was up to 88.41%.