Methanol uranium oxides

Studies of the decomposition of methanol over various catalysts show that the same catalysts are active toward the decomposition reaction cat pressures of one atmosphere as are active toward the synthesis at the higher pressures. Indeed, to Patart is attributed the statement that the results from the work of Sabatier on the catalytic decomposition of methanol led directly to the use of certain of the methanol synthesis catalysts.188 144 Smith and Hawk 145 found that zinc oxide made by igniting die carbonate, mixtures of zinc and chromium oxides in the atomic proportions of 4 zinc to 1 chromium, mixtures of zinc and uranium oxides,... 

Primary and sequential reactions of four small uranium oxide/hydroxide anions, U02, UO3, U04, and U03(0H), with methanol, were studied the experimental observations were evaluated by DFT, with the validity of the computational results—structures and reaction mechanisms—confirmed by isotopic labeling experiments (Michelini et al., 2010). The U02 ion was inert, whereas the other three oxoanions reacted with three methanol molecules via the addition or elimination of formaldehyde, water, or dihydrogen to ultimately produce inert uranyl methoxide anion complexes, [U 02(0CH3)2] or [U 02(0CH3)3] . The structure of the U04 ion reveals four discrete U—O bonds with no O—O bonding. Another notable feature of the DFT results that was verified by isotopic labeling is that the stmcture of... 

METHYL ORTHOSILICATE (681-84-5) Forms explosive mixture with air (flash point 68°F/20°C). Reacts with water, forming methanol and silicic acid. Violent reaction with strong oxidizers, metallic hexafluorides (e.g., molybdenum hexafluorides, tungsten hexafluorides, uranium hexafluorides, etc.). Incompatible with strong acids, nitrates. 

Several examples for desorption of this type are given below 1) desorption of organics from activated carbon by methanol (Sudo and Suzuki, 198S), 2) concentrating desorption of uranium from the resin adsorbent used for recovery of uranium from sea water by using an acid solution (Suzuki et al, 1986), and 3) desorption of ammonium ion from the clinoptilolite used for water treatment by sodium chloride solution (Ha and Suzuki, 1984). Also, alkaline desorption for phenols adsorbed on the activated carbons or acid desorption of phosphate trapped on zirconium oxide adsorbent and many other examples may be analyzed by similar methods... 

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