Infoscience

Patent

Process and dehydrogenation catalysts for the production of formaldehyde from methanol

HCHO is prepd. in high yield and selectivity by the dehydrogenation of MeOH in the presence of catalysts contg. metallic Na or >=1 Na compd. at 300-800 Deg. Na2CO3 was heated under H at 5 Deg/min and the temp. maintained during this heating process at 100 Deg, 500 Deg, 600 Deg, and 650 Deg for 3 h each, ending at 700 Deg, at which temp. the catalyst was maintained for 5 h. This catalyst (2 g) was charged into a reactor and contacted with 0.161 L/h of a 17% MeOH in N mixt., giving 20% MeOH conversion with HCHO formation in 65% selectivity. [on SciFinder (R)]

    Keywords: Dehydrogenation catalysts (metallic sodium or sodium compds. ; for formaldehyde manuf. from methanol) ; sodium catalyst methanol dehydrogenation; formaldehyde manuf methanol dehydrogenation

    Note:

    CAN 110:193565

    35-2

    Chemistry of Synthetic High Polymers

    Patent

    written in German.

    19881214

    7440-23-5 (Sodium) Role: CAT (Catalyst use), USES (Uses) (catalysts, contg. indium, for methanol dehydrogenation in formaldehyde manuf.); 13770-61-1 Role: CAT (Catalyst use), USES (Uses) (catalysts, contg. sodium tetraborate, for methanol dehydrogenation in formaldehyde manuf.); 7440-74-6 (Indium) Role: CAT (Catalyst use), USES (Uses) (catalysts, contg. sodium, for methanol dehydrogenation in formaldehyde manuf.); 144-55-8 (Sodium hydrogen carbonate); 497-19-8 (Sodium carbonate); 1330-43-4 (Sodium tetraborate); 7631-95-0 (Sodium molybdate); 7632-05-5 (Sodium phosphate); 7757-82-6 (Sodium sulfate) Role: CAT (Catalyst use), USES (Uses) (catalysts, for methanol dehydrogenation in formaldehyde manuf.); 1312-43-2 (Indium oxide) Role: CAT (Catalyst use), USES (Uses) (catalysts, with sodium carbonate, for methanol dehydrogenation in formaldehyde manuf.); 67-56-1 (Methanol) Role: RCT (Reactant), RACT (Reactant or reagent) (dehydrogenation of, formaldehyde from, catalysts for); 50-00-0P (Formaldehyde) Role: IMF (Industrial manufacture), PREP (Preparation) (manuf. of, by methanol dehydrogenation, catalysts for)

    Designated States R: BE, CH, DE, ES, FR, GB, IT, LI, NL.

    A2

    DE

    87-3719055

    19870606

    Reference

    Record created on 2006-04-18, modified on 2016-08-08

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