Laser-Initiated Free Radical Chain Reactions: Synthesis Of Hydroperoxides

R. G Bray; M. S Chou

doi:10.1117/12.939415

31 May 1984 Laser-Initiated Free Radical Chain Reactions: Synthesis Of Hydroperoxides

R. G Bray, M. S Chou

Proceedings Volume 0458, Applications of Lasers to Industrial Chemistry; (1984) https://doi.org/10.1117/12.939415
Event: 1984 Los Angeles Technical Symposium, 1984, Los Angeles, United States

Abstract

We have investigated the advantages of using laser-initiation for the synthesis of cumenehydroperoxide and t-butylhydroperoxide. Laser-initiation significantly improves the oxidation rates of cumene in the liquid phase and iso-butane in the vapor phase (using HBr promoters) with moderate photoefficiencies (418 and 490 respectively). The primary effect of laser-initiation is to reduce the induction period of the reaction. For the oxidation of cumene the beneficial effect of laser initiation is strongly dependent on laser wavelength, alternately enhancing (at 351 nm) or inhibiting (at 249 nm) the oxidation rate. For isobutane oxidation, laser-initiation also minimizes the HBr depletion rate relative to oxidation rate.

Citation Download Citation

R. G Bray and M. S Chou "Laser-Initiated Free Radical Chain Reactions: Synthesis Of Hydroperoxides", Proc. SPIE 0458, Applications of Lasers to Industrial Chemistry, (31 May 1984); https://doi.org/10.1117/12.939415

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