A process is provided for the recovery of a metallic nickel product in a
solvent extraction process which includes the steps of forming a nickel
ammine complex by stripping nickel from a nickel loaded organic phase
with a high strength ammonia solution and then reducing the nickel ammine
complex with hydrogen from the high strength ammonia solution to produce
a metallic nickel product. By virtue of the present process, a reductive
precipitation of nickel by hydrogen is obtained so as to recover a
metallic nickel product, and the process is advantageous in that it will
allow for commercial processes wherein nickel may be recovered by
hydrogen reduction based on high strength ammonia solutions.