Chemistry of inorganic compounds – Nitrogen or compound thereof – Oxygen containing
Patent
1988-11-22
1993-08-24
Willis, Jr., Prince
Chemistry of inorganic compounds
Nitrogen or compound thereof
Oxygen containing
423659, 252309, 252312, C01B 700, B01J 1300
Patent
active
052386716
ABSTRACT:
This invention is directed to conducting chemical reactions in reverse micelle or microemulsion systems comprising a substantially discontinuous phase including a polar fluid, typically an aqueous fluid, and a microemulsion promoter, typically a surfactant, for facilitating the formation of reverse micelles in the system. The system further includes a substantially continuous phase including a non-polar or low-polarity fluid material which is a gas under standard temperature and pressure and has a critical density, and which is generally a water-insoluble fluid in a near critical or supercritical state. Thus, the microemulsion system is maintained at a pressure and temperature such that the density of the non-polar or low-polarity fluid exceeds the critical density thereof. The method of carrying out chemical reactions generally comprises forming a first reverse micelle system including an aqueous fluid including reverse micelles in a water-insoluble fluid in the supercritical state. Then, a first reactant is introduced into the first reverse micelle system, and a chemical reaction is carried out with the first reactant to form a reaction product. In general, the first reactant can be incorporated into, and the product formed in, the reverse micelles. A second reactant can also be incorporated in the first reverse micelle system which is capable of reacting with the first reactant to form a product.
REFERENCES:
R. W. Gale, et al., "Preparation of Monodispersed Nickel Boride Catalysts Using Reverse Micellar Systems" Preparation of Catalysts, Elsevier, Amsterdam (1983).
R. W. Gale, et al. Anal. Chem. (1987) 59, 1977-1979.
R. W. Gale, et al. J.A.C.S. (1987) 109, 920-1.
R. D. Smith, Separation Science and Technology, vol. 23 Oct. 1988.
Nagy et al. "Preparation of Monodispersed Nickel Boride Catalysts Using Reversed Micellar Systems", Preparation of Catalysts, Elsevier, Amsterdam (1983).
Consani Keith A.
Fulton John L.
Matson Dean W.
Smith Richard D.
Battelle (Memorial Institute)
McNally John F.
Willis Jr. Prince
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