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  1. Roles of surfactants in flotation deinking

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    Author(s): Yulin Zhao; Yulin Deng; J.Y. Zhu
    Date: 2004
    Source: Progress in paper recycling. Vol. 14, no. 1 (Nov. 2004): Pages 41-45.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (68 KB)

    Description

    Flotation deinking is a common practice for removing ink from wastepaper, and it is becoming a key process in many recycling paper mills. Flotation deinking was successfully introduced to the paper recycling industry in the 1980s, and its applications in wax removal, sticky control, and fiber fractionation have attracted great research interest. A successful flotation process has three major efficient subprocesses: the detachment of the ink particles from the fibers, the effective adhesion of the ink particles onto air bubble surfaces, and the removal of froth and ink particles from flotation cells. Surfactants can affect these subprocesses either positively or negatively. To understand how a surfactant can positively and negatively affect the flotation deinking process, the basic chemistry of surfactant in solution should be discussed.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Zhao, Yulin; Deng, Yulin; Zhu, J.Y. 2004. Roles of surfactants in flotation deinking. Progress in paper recycling. Vol. 14, no. 1 (Nov. 2004): Pages 41-45.

    Keywords

    Deinking, deinking chemical, deinking performance, flotation deinking, paper recycling, secondary fibers, surfactant

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