molybdate sulfuric acid (msa) has been prepared and used as catalyst for the biginelli synthesis of some quinazolinones/thiones under solvent-free conditions. the catalyst loading is low and it shows recyclability. this method has advantages such as avoidance of the organic solvents, high yield of pure products, short reaction times and operational simplicity.

Molybdate sulfuric acid (MSA) has been prepared and used as catalyst for the Biginelli synthesis of some quinazolinones/thiones under solvent-free conditions. The catalyst loading is low and it shows recyclability. This method has advantages such as avoidance of the organic solvents, high yield of pure products, short reaction times and operational simplicity.

Isolated molybdate species supported on silica are reported to have the highest specific activity and selectivity for the direct oxidation of methane to formaldehyde. The present investigation was undertaken to understand the elementary redox processes involved in the formation of formaldehyde over such species. A MoO(x)/SiO(2) catalyst was prepared with a Mo loading of 0.44 Mo/nm(2). On the ba...

The selective oxidation of methanol to formaldehyde is a growing million-dollar industry, and has been commercial for close century. Formox process, which the largest production process today, utilizes an iron molybdate catalyst, highly selective, but short lifetime 6 months due volatilization active molybdenum oxide. Improvements process’s is, thus, desirable. This paper provides overview effo...

Molybdate sulfuric acid (MSA) has been prepared and used as catalyst for the Biginelli synthesis of some quinazolinones/thiones under solvent-free conditions. The catalyst loading is low and it shows recyclability. This method has advantages such as avoidance of the organic solvents, high yield of pure products, short reaction times and operational simplicity.

The iron molybdate NaMgFe(MoO4)3 {sodium magnesium iron(III) tris-[molybdate(VI)]} has been synthesized by the flux method. This compound is isostructural with α-NaFe2(MoO4)3 and crystallizes in the triclinic space group P-1. Its structure is built up from [Mg,Fe]2O10 units of edge-sharing [Mg,Fe]O6 octa-hedra which are linked to each other through the common corners of [MoO4] tetra-hedra. The ...

A sample of MoOx/SiO2, in which all of the Mo cations are present as isolated mono-oxo molybdate moieties, was prepared and investigated to understand the redox chemistry of such molybdate species and their ability to exchange oxygen with O2 and H2O. Raman spectroscopy was used to monitor the exchange of 18O for 16O in the Mo=O bond of isolated molybdate species, whereas mass spectrometry was u...

Formaldehyde is a primary chemical in the manufacturing of various consumer products. It synthesized via partial oxidation methanol using mixed oxide iron molybdate catalyst (Fe2(MoO4)3–MoO3). This one standard energy-efficient processes. The an attractive commercial for converting to formaldehyde. However, detailed phase analysis each and complete understanding formulation deactivation studies...