IP Library Granted Patent US 7,108,735
Granted Patent B2
US 7,108,735 · App. 10/473,181 · Granted Sep 19, 2006

Method and device for manufacturing metallic particulates, and manufactured metallic particulates

Assignee: Phild Co., Ltd.
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Quick Facts
Patent No.
US 7,108,735
App. No.
10/473,181
Granted
Sep 19, 2006
Kind
B2
Abstract

Produce metal particles offering high purity and uniform granular shape and size: by forming a combustion chamber comprising an injector nozzle for mixture gas of oxygen and hydrogen, an ignition device and a material metal feeder in the upper space of a high-pressure water tank filled with inert gas; igniting inside the combustion chamber via the ignition device the injector nozzle for mixture gas of oxygen and hydrogen and melting (vaporize) the material fed by the material metal feeder; and then causing the produced molten metal droplets to contact high-pressure water and let the resulting metallic particles to precipitate in water.

Claims (12)

1. A method for producing metallic particles, comprising:

filling with inert gas an upper space of a high-pressure water tank containing high-pressure water, wherein a combustion chamber is formed in said space, said combustion chamber comprising an injector nozzle for mixture gas of oxygen and hydrogen, an ignition device, and a metal material feeder;

igniting inside said combustion chamber via the ignition device the mixture gas of oxygen and hydrogen injected from the injector nozzle;

applying the resultant combustion gas to melt or vaporize a metal material fed by the metal material feeder; and

contacting the produced molten metal droplets or vapor with high-pressure water to crush and solidify the droplets/vapor to produce fine metallic particles which precipitate in water for recovery.

2. The method for producing metallic particles as described in claim 1 , wherein the inert gas in the upper space of the high-pressure water tank is fed into the high-pressure water via a pump and said gas is collected as it travels upward in the high-pressure water, dried, and then released into the upper space.

3. The method as described in claim 2 , wherein said metal material is titanium, zirconium, germanium, tin, gold, platinum or silver.

4. The method as described in claim 2 , wherein the shape of said metal material is bar, sheet, wire, foil or granule, or any combination thereof.

5. The method for producing metallic particles as described in claim 1 , wherein said metal material is titanium, zirconium, germanium, tin, gold, platinum or silver.

6. The method as described in claim 5 , wherein the shape of said metal material is bar, sheet, wire, foil or granule, or any combination thereof.

7. The method for producing metallic particles as described in claim 1 , wherein the shape of said metal material is bar, sheet, wire, foil or granule, or any combination thereof.

8. The method as described in claim 1 , further electrolyzing water to produce the mixture gas of oxygen and hydrogen before introducing the mixture gas into the combustion chamber.

Assignments (2)
MERGER Recorded Dec 15, 2009
From: PHILD CO., LTD.
To: PHITEN CO., LTD.
Reel/Frame 023649/0775 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2004
From: HIRATA, YOSHIHIRO; TAKASE, HIROAKI; UEDA, YOSHIO; SUZUKI, KAZUAKI
To: PHILD CO., LTD.
Reel/Frame 014872/0700 →
Priority Claims (1)
JP 2001-091942 · Mar 28, 2001 · national
Continuity (1)
Related Publication 20040107798A1 · Jun 10, 2004