Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1990-01-11
1991-11-12
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
2041575, 20415741, 2041574, 427 531, C01D 102, B05D 306
Patent
active
050645170
ABSTRACT:
A finely divided metal-containing compound can be efficiently prepared by irradiating a mixed vapor phase of an organometallic compound in a concentration to exceed a specified lower limit and a reactant gaseous compound with laser beams having an incident energy density to exceed a specified lower limit. When the reactant gaseous compound in the vapor phase is an oxygen-containing compound, e.g., air, the resultant powdery product is an oxide of the metallic element of the organometallic compound. When the reactant gaseous compound in the vapor phase is a halogen-containing compound, e.g., methyl halides, the resultant powdery product is a halide of the metallic element of the organometallic compound. When the reactant gaseous compound is a second organometallic compound, of which the metallic element is not the same as the metallic element in the first organometallic compound, the resultant powdery product is a composite metallic powder of which the distribution of the two metallic elements is uniform throughout each particle. No particles of either one of the metallic elements alone are contained in the powder as evidenced by the EPMA analysis.
REFERENCES:
patent: 4668647 (1987-05-01), Rice
patent: 4687753 (1987-08-01), Fiato
patent: 4689129 (1987-08-01), Knudsen
patent: 4844736 (1989-07-01), Shimo et al.
Idemitsu Kosan Company Limited
Mayekar Kishor
Niebling John F.
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