Sherritt Gordon Process. The nickel and cobalt metallurgy processes begin with an initial treatment of the mineral, re-concentrating it through crushing and flotation/gravity and obtaining a “speiss”, rich in cobalt and nickel. The process begins by adding the sulfide-associated mineral to a reactor with sulfuric acid and pressurised air

The objective of this thesis was a study of the operability of the leaching process at the Kwinana nickel refinery. The refinery makes use of the Sherritt-Gordon process for producing London Metal Exchange-grade nickel briquettes and other products. Like all industrial operations, the refinery embodies a considerable investment, demanding

Sherritt Gordon Limited renamed Sherritt Inc. Sherritt completes an extensive refurbishment and expansion of its Fort Saskatchewan nickel and cobalt refinery to allow efficient processing of a significant new feed source, mixed sulphides from Moa Nickel

Sherritt Gordon'sAmmonia Pressure-Leaching Process Sherritt Gordon Mines were pio-neers inhydrometallurgy, andmuch ofthecredit foradvancing thetech-nology ofpressure leaching must be given to them. They use pressure-leaching processes fortreating nickel concentrates, andtheyhavelicensed, among others, Western Mining in Australia and Impala Platinum to

Oct 01, 2010 Refining metals at Sherritt begins with the leaching of cobalt and nickel from a variety of feed materials. The cobalt feeds are segregated into high and low cobalt containing types and are fed to different locations in the plant. The high cobalt feeds consist mainly of mixed nickel and cobalt sulphides. These feed materials

A world of experience and expertise. A proven track record. Sherritt Technologies is a recognized leader in the application of pressure hydrometallurgy and development and commercialization of hydrometallurgical processes for the recovery of metals. With a long history as an operator of pressure hydrometallurgical circuits, we use our expertise to help clients unlock the value in ores and

the production of copper, nickel and cobalt. In some processes, such as the Sherritt Gordon process, they are introduced as feed; while in others, such as the Caron process, they form in-situ, as intermediate products. The focus of this study is to understand the

Jul 04, 2013 Study before testwork) Compare, balance/reconcile, look for anomalies Example Sherritt-Gordon process 44. FLOWSHEET DEVELOPMENT IN THE CONTEXT OF COPPER EXTRACTION www.sargon.com.au Oxygen and O2 delivery Plant costs & Power consumption 1996 Oxygen uptake into leach or Fe+++ regen slurry ~10 – 15% Aachen, Filblast/Atomaer

Jan 14, 2009 Sherritt Gordon provided funds for a laboratory program at UBC. Initial efforts focused on adapting the Caron Process, used at Nicaro, Cuba, to the treatment of roasted Lynn Lake concentrate to produce nickel oxide. Results of this work were presented at the CIMM Annual Meeting in Vancouver in April, 1948 (4)

After producing the nickel matte, further processing is done via the Sherritt-Gordon process. First, copper is removed by adding hydrogen sulfide, leaving a concentrate of only cobalt and nickel. Then, solvent extraction is used to separate the cobalt and nickel, with the final nickel

Sep 29, 2017 The modified Sherritt-Gordon process is a pressure oxidation leach. Other methods include a sulfate oxidative leach, a chlorine leach – followed by chloride electrowinning, electro-refining of nickel matte anodes, and electro-refining of impure metal

Sherritt Gordon Mines Limited (Toronto, CA) Primary Class: 75/344. Other Classes: 75/359, 75/365, 148/105 ... The process according to claim 1 wherein the free ammonia to cobalt molar ratio of the cobaltous ammine ammonium sulphate solution is in the range of about 2 to 4.5, the ammonium sulphate concentration of the solution is between about

The Sherritt process, hydrometallurgical cobalt extraction techniques that enhance recovery from nickel-cobalt sulfide concentrates, is named for Sherritt Gordon Mines Ltd. 1927: Incorporation of Sherritt Gordon Mines Limited. 1954: Construction of the refinery at Fort Saskatchewan, Alberta

For Welding Consumables, Thermal Spray, and Galvanizing. The OH series of Nickel Powders is produced through a hydrometallurgical process, also known as Hydrogen-Reduced or the “Sherritt-Gordon” process. Nickel is precipitated under high pressure and temperature to create a spherical shape with a “cauliflower” surface

Apr 24, 2010 After producing the nickel matte, further processing is done via the Sherritt-Gordon process. First copper is removed by adding hydrogen sulfide, leaving a concentrate of only cobalt and nickel. Solvent extraction then efficiently separates the cobalt and nickel, with the final nickel concentration greater than 99%

In 1947, a process (refer Figure 1) in this regard was invented by Sherritt Gordon. Figure 1. Flow sheet of Gordon Process (Forward and Mackiw, 1955) In this process, ammonia leaching of sulfide

Nov 25, 2017 Abstract. Oxidation in an autoclave with sulfuric acid has been shown to extract 95 to 99 pct of the zinc present, produce a quantitative amount of elemental sulfur, and avoid loss of zinc due to ferrite formation. Download to read the full article text

the Sherritt-Gordon ammoniacal pressure leaching process [1, 2] for the extraction of nickel, copper and cobalt. The refinery feed material is a nickel matte that contains: metallic nickel (Ni0), heazlewoodite (Ni 3S2), chalcocite (Cu2S), cobalt sulphide (CoS), metallic iron (Fe 0) and pyrrhotite (FeS). Nickel