Method of preparing and isolating metal hydrocarbonyls and recovery of pure metals therefrom
AssigneeJoseph P. Meyers
InventorLubertus Bakker
Life of this patent
Estimating the term…
Abstract
This invention comprises a novel method for the preparation of metal hydrocarbonyls of metals of Groups 1b, 2b, 3b, 4b, 5b, 6b, 7b and 8 of the Periodic Table of the Elements and the attendant method for isolation of pure metals by the separation of a single metal as a metal hydrocarbonyl from any mixture and the subsequent decomposition of the metal hydrocarbonyl to metal powder. The methods of this invention are of particular value in recovering valuable metals in pure state from such sources as exhausted or poisoned metal-based catalysts, low grade ores, filter cakes or mining tailings. Gaseous metal hydrocarbonyl products of this invention also make possible isotope separation.
Claims3
A method comprising
- 1. contacting a solid material having a maximum particle dimension of 1 mm. and containing nickel present as any of free metal, metal oxides, metal sulfides, metal salts, metal esters and mixtures thereof with a mixture of hydrogen and oxygen in a molar ratio of from 3:1 to 1:3 at a temperature of 185.degree. .+-.15.degree.C. and a pressure of from one to about 250 atmospheres for a time sufficient to convert substantially all of said nickel in said solid material to nickel hydrocarbonyl, and
- 2. separating such nickel hydrocarbonyl from the reacting system while maintaining said system at said temperature and pressure.
Dependencies are inferred from the claim text.