Coating processes – Coating by vapor – gas – or smoke – Metal coating
Patent
1996-11-12
1998-06-16
Bueker, Richard
Coating processes
Coating by vapor, gas, or smoke
Metal coating
4272551, 118715, C23C 1600
Patent
active
057666830
ABSTRACT:
A nickel deposition includes a reactor system for producing nickel carbonyl and storing same as a liquid, a plating system where the liquid carbonyl is vaporized and applied to product and deposited thereon, with carbon monoxide being released in the process, a reclaim system for cooling the gases received from the plating system and cooling them to a temperature just above its freezing point to condense out and recover the liquid carbonyl, said reclaim system including a reclaim condenser, and a vapor recovery system including a gas receiver for receiving vapors from the reclaim system. The vapor recovery system includes a first stage compressor operatively connected to the first stage receiver for pressurizing the vapor to about 25 PSIG, and a first stage condenser operatively connected to the first stage compressor for cooling the vapors. A conduit communicates the vapor recovery system to the reactor system for forwarding the cooled vapors to a recycle pump receiver in the reactor system. A compressor is provided in the reactor system for compressing the gases from the recycle pump receiver to about 65 PSIG. The nickel deposition system recovers and recycles substantially all of the nickel carbonyl and the requirements for carbon monoxide are substantially reduced.
REFERENCES:
patent: 3800740 (1974-04-01), Robinson
patent: 3826225 (1974-07-01), Forman
Bueker Richard
New American TEC
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