Category Archives: CVMR Patents

NICKEL CARBONYL VAPOUR DEPOSITION APPARATUS AND PROCESS

Canadian Patent Application No.:  CA  2307036 Abstracts A closed loop, carbon monoxide self-contained preferably continuous process and apparatus for the production of nickel or nickel coated objects by nickel vapour deposition (NVD), comprising placing an object (34) to be treated with nickel carbonyl in a deposition chamber (28); feeding a gaseous mixture of nickel carbonyl and carbon monoxide to the chamber; producing the nickel or nickel coated object and a nickel carbonyl-depleted gaseous mixture; … Continue reading

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PURIFICATION OF METALS FROM MIXTURES THEREOF

Canadian Patent Application No.:  CA  2411796 Abstracts A process for preparing a pure PGM (platinum group metal) from a material containing a plurality of PGM compounds, wherein the PGM is selected from the group consisting of Pt, Pd; Os; Ir, Ru, Rh and Re, and the process includes initially forming the PGM in activated form by reduction of PGM ions in aqueous solution at pH 6-8 by a reducing agent,  referably, hydrogen. Subsequently, the activated … Continue reading

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CARBONYL PROCESS FOR RECOVERY OF PURIFIED COBALT

Canadian Patent Application No.:  CA  2391939 Abstracts A process for producing purified cobalt from a mixture comprising metallic species of cobalt and metallic species of at least one of the group consisting of nickel and iron, comprising producing a metal carbonyl mixture of cobalt carbonyl and at least one of nickel carbonyl and iron carbonyl from the metallic species mixture; separating the nickel carbonyl and/or iron carbonyl from the cobalt carbonyl; treating the cobalt … Continue reading

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PROCESS FOR PRODUCING NICKEL CARBONYL, NICKEL POWDER AND USE THEREOF

Canadian Patent Application No.:  CA  2461624 Abstracts A process for producing Ni(CO)4 from 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 … Continue reading

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METAL-GAS REACTOR AND PROCESS

Canadian Patent Application No.:  CA  2379491 Abstracts A method of effecting intimate mixing and reaction of a metal in particulate form with a reactant gas to form a gaseous product, said method comprising passing a feed stream of said reactant gas through an elongate conduit into a reaction  chamber at such a flow rate as to effect drawing of said particulate metal through said elongate conduit in intimate admixture with said gas from a … Continue reading

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APPARATUS AND PROCESS FOR MAKING HIGH PURITY NICKEL

Canadian Patent Application No.:  CA  2585541 Abstracts An improved method of reducing a mixed metal oxide composition comprising oxides of nickel, cobalt, copper and iron in a hydrogen atmosphere to produce a mixture of the  respective metals, the improvement wherein the atmosphere further comprises water vapour at a concentration, temperature and time to effect selective reduction of the oxides of nickel cobalt and copper relative to the iron oxide to produce the metallic mixture … Continue reading

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NICKEL CARBONYL VAPOUR DEPOSITION PROCESS

Canadian Patent Application No.:  CA  2206217 Abstracts A closed loop, carbon monoxide self-contained continuous process for the production of nickel or nickel coated objects by the nickel vapour deposition process, comprising placing an object to be treated with nickel carbonyl by said nickel vapour deposition process in a deposition chamber; feeding a gaseous mixture of nickel carbonyl and carbon monoxide to said deposition chamber; depositing nickel on said object to produce said nickel or … Continue reading

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PROCESS AND APPARATUS FOR PRODUCING PURE NICKEL AND COBALT FROM ORES THEREOF

Canadian Patent Application No.:  CA  2525625 Abstracts A process for the production of pure metallic nickel and cobalt from metallic ores comprising oxides of nickel, cobalt and iron, the process comprising (a) treating the ores 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 first mixture comprising particulate nickel and particulate cobalt; (b) … Continue reading

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RE-ACTIVATION OF DE-ACTIVATED NICKEL FOR NICKEL CARBONYL PRODUCTION

Canadian Patent Application No.:  CA  2525466 Abstracts A process and apparatus for the production of a deposited metallic nickel product from an inactivated, pre-activated metallic nickel source, the process including treating the nickel source with hydrogen at a nickel activation temperature selected from 150-350°C, preferably, 150°C to effect re-activation of the nickel source; treating the re-activated nickel with carbonylation carbon monoxide to produce a gaseous mixture containing nickel carbonyl and carbon monoxide; collecting the … Continue reading

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NICKEL CARBONYL ANALYZER

Canadian Patent Application No.:  CA 2525869 Abstracts Process and apparatus for measuring the concentration of nickel carbonyl in a gaseous nickel carbonyl sample comprising (a) mixing the nickel carbonyl sample with ozone and carbon monoxide under dynamic flow to produce a gaseous mixture with resultant chemiluminescence and photon emission signal; (b) detecting the strength of the signal; and (c) correlating the signal strength with calibrated nickel carbonyl concentration values; the improvement including premixing the ozone … Continue reading

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