Process for producing nickel carbonyl, nickel powder and use...

Details Process for producing nickel carbonyl, nickel powder and use... Process for producing nickel carbonyl, nickel powder and use...

2007-04-03

2007-04-03

Hendrickson, Stuart (Department: 1754)

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

C075S629000

Reexamination Certificate

active

10397425

ABSTRACT:
A process for producing Ni(CO)4from carbon monoxide and a source of nickel selected from the group consisting of elemental nickel, a nickel compound or mixtures thereof, provided the nickel compound is not nickel chloride per se or in admixture with a nickel carbonate ore, in an amount greater than 50% W/W nickel chloride; which process comprises (a) treating the nickel source with hydrogen at a pressure of at least atmospheric pressure and an effective temperature, in the presence of chloride anion or an in situ generator thereof precursor, to produce a resultant nickel; (b) reacting the carbon monoxide with the resultant nickel to produce the Ni(CO)4; and collecting the Ni(CO)4. The process offers the production of Ni(CO)4at atmospheric pressure and at a sufficiently high rate for direct use in subsequent deposition processes without the need for storage facilities.

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Ullmann's Encyclopedia of Industrial Chemistry; Wiley-VCH Verlag GmbH & Co. Nickel: Section 6.3 (Carbonyl Refining); DOI: 10.1002/14356007.a17—157 Article Online Posting Date: Jun. 15, 2000.

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