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Methanolic HCHO, essentially H2O-free, is prepd. by dehydrogenation of MeOH over a catalyst contg. >=1 Na compd. at 300-800 Deg. Thus, a mixt. contg. 13% MeOH and 87% N was passed at 700 Deg and 0.154 mol/h over a catalyst prepd. by sintering Na2B4O7 and I ...
The reaction of 4-methoxy-1,2,3,4-tetrahydroisoquinolines I (R = MeO, R1 = H; RR1 = OCH2O) with Li diisopropylamide affords dimerization products II. The intermediacy of orthoquinodimethanes and diradicals is assumed. [on SciFinder (R)] ...
Catalysts based on alkali compds. were active in the dehydrogenation of MeOH in absence of O. Na2CO3 doped with In showed a selectivity of ?75% for MeOH conversion ?60%. [on SciFinder (R)] ...
Some Na compds. are selective catalysts for dehydrogenation of MeOH to HCHO, stable under high temps., and not reduced by H which is formed. They undergo some deactivation due to coking, but burning the coke easily returns the catalyst to its initial activ ...
The usefulness of 6-nitro BIPS as a photochromic tracer in org. liqs. was investigated. The photochromic effect of this dye permits the soln. to be decolored conveniently after each tracer expt. so that the same liq. may be used in a closed loop for a larg ...
Dye-linked formaldehyde dehydrogenase (I) was partially purified (11-fold) from MeOH- and EtOH-grown Hyphomicrobium X. Through not homogeneous, it did not contain MeOH dehydrogenase, formate dehydrogenase, or cytochrome c. Methylphenazonium methylsulfate ( ...
A survey of the occurrence of a no. of enzymes possibly involved in the C1 dissimilatory pathway in organisms using the serine pathway of C assimilation indicated that neither the methanol dehydrogenase nor the NH4-independent dye-linked formaldehyde dehyd ...
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 ...
Starting with a classical process for producing methanol using the reforming and synthesis steps, a combined approach applying simulation models and a new synthesis strategy, named Effect Modelling and Optimisation (EMO), has been used to optimise the ener ...
The oxidation of methanol on gold electrodes modified with polypyrrole and platinum is reported. These electrodes were characterized by cyclic voltammetry and by 12h polarizations in methanol solutions. They were found to give higher currents and lower rat ...
