Sodium Tungstate Catalytic Hydrogen Peroxide
Sodium tungstate catalytic hydrogen peroxide is using sodium tungstate as catalyst hydrogen peroxide reaction is a process of producing other substances. Hydrogen peroxide (H2O2), also known as the oxidizing agent. Studies have shown that hydrogen peroxide and sodium tungstate catalyst in the aqueous phase, it must be water-soluble peroxygen salt into the oil phase substrate sufficient contact to react. Sato used cyclohexene as raw materials, 30% H2O2 as oxidant, Na2WO4 • 2H2O is catalyzed organic reactions.
Research indicates acidic to some extent, it can promote the formation of sodium tungstate poly acid or a salt thereof, polyphosphoric acid or a quaternary ammonium salt more effectively the transfer of oxygen to hydrogen peroxide in the reaction substrate.
With hydrogen peroxide, a phase transfer catalyst or a complexing agent, sodium tungstate as catalyst were thoroughly mixed and the mixture was warmed to 85 ~ 90 ℃, added octafluoropentanol to prepare octafluoro acid. Then, the barium carbonate powder was added to the reaction mixture to precipitate sodium tungstate, stirred, cooled, filtered to remove the precipitate.
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