Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1974-02-25
1976-01-06
Garvin, Patrick P.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252412, 252431R, 260635H, 2603485L, B01J 3700, B01J 3112, C07C 2902
Patent
active
039310442
ABSTRACT:
This application is directed to a method for regenerating catalyst values used in the synthesis of a diol; the synthesis consists of a hydroperoxide reaction with an olefin in the presence of water and a molybdenum catalyst; the regenerating process consists in treating the molybdenum catalyst residue (or a fraction thereof) with ammonia -- optionally after calcining -- and causing a diol to act on the ammonium molybdate so obtained; in one embodiment ammonia in gaseous form is passed in contact with a catalyst residue (not previously calcined) which is in solution; the reaction products in the synthesis of the diol are a hydroperoxide such as tertiary hydroperoxide of isopentane and an olefin such as methyl 2-butene; the diol synthesized in 2-methyl 2,3-butanediol; it is also the synthesized diol which is preferably reacted with the ammonium molybdate.
REFERENCES:
patent: 3453068 (1969-07-01), Tave
patent: 3463604 (1969-08-01), Tave
patent: 3629144 (1971-12-01), Hahm et al.
patent: 3822321 (1974-07-01), Maurin et al.
Compagnie Francaise de Raffinage
Garvin Patrick P.
Konopka P. E.
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