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Mechanical pulps, electron

It is well known that the flotation of sulphides is an electrochemical process, and the adsorption of collectors on the surface of mineral results from the electrons transfer between the mineral surface and the oxidation-reduction composition in the pulp. According to the electrochemical principles and the semiconductor energy band theories, we know that this kind of electron transfer process is decided by electronic structure of the mineral surface and oxidation-reduction activity of the reagent. In this chapter, the flotation mechanism and electron transferring mechanism between a mineral and a reagent will be discussed in the light of the quantum chemistry calculation and the density fimction theory (DFT) as tools. [Pg.219]

ML Andersen and DDM Wayner. Electrochemistry of Electron Transfer Prohes (X-Aryloxyacetoveratrones and Implications for the Mechanism of Photo-yellowing of Pulp. Acta Chem. Scand. 53 830-836, 1999. [Pg.100]

See other pages where Mechanical pulps, electron is mentioned: [Pg.201]    [Pg.456]    [Pg.398]    [Pg.348]    [Pg.23]    [Pg.1406]    [Pg.174]    [Pg.20]    [Pg.250]    [Pg.83]    [Pg.115]    [Pg.51]    [Pg.311]    [Pg.83]    [Pg.42]    [Pg.164]    [Pg.204]    [Pg.276]    [Pg.386]    [Pg.425]    [Pg.124]    [Pg.196]    [Pg.289]    [Pg.145]    [Pg.120]    [Pg.222]    [Pg.176]   


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