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On the mechanism of preparation of Co3O4 from various salts

โœ Scribed by D. Mehandjiev; E. Nikolova


Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
441 KB
Volume
23
Category
Article
ISSN
0040-6031

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Adsorption mechanism of Boscan porphyrin
โœ Alfredo Morales; Roberto Galiasso ๐Ÿ“‚ Article ๐Ÿ“… 1982 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 616 KB

The adsorption of Boscan porphyrins on Co-Mo/Al,O, and molybdenum and cobalt oxides was studied with the aim of establishing the mechanism of vanadium elimination during the hydrodemetallization (HDM) of heavy oils. The results show a change in the e.p.r. signal of VO \*+ and in the u.v.-visible ban