The Falconbridge matte leach process (Book, 1966 ...

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INVESTIGATION OF COPPER(I) SULPHIDE LEACHING IN …

Leaching of copper (I) sulphide has been the subject of many investigations [2– 6], including leaching under high pressure and atmospheric pressure. The process of copper matte leaching under high pressure conditions, in both acidic and alkaline solutions, necessitates high capital and operation costs.

The Falconbridge matte leach process - Harvard University

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Falconbridge Matte Leach Process - ilguardacielo.it

Falconbridge Matte Leach Process. Copper extraction - Wikipedia. This draining process is known as tapping the furnace. The matte taphole is normally a hole through a water-cooled copper block that prevents erosion of the refractory bricks lining the furnace. When the removal of the matte or slag is complete, the hole is normally plugged with ...

Past, Present and Future of Process Control at Xstrata ...

The metals contained in the matte are separated and distributed to the various process areas for further pu-ri cation and re ning. From there, the products are cut, packaged and shipped to world markets (Stensholt et al.,2001). The history of process control at Xstrata Nikkelverk goes hand in hand with the metallurgical history of the re nery.

Catalogue Search Results | University of Toronto Libraries

Leaching 20 Metallurgy 5 Environmental Aspects 5 Testing 2 Hydrometallurgy 2 + More; Call Number. T - Technology. 13 Q - Science 2 G - Geography. Anthropology. Recreation 1 Format. Book 19 Microform 1 Publication Year. 1900-1999 18 2000 to 2009 ...

Analysis of the first-stage leach process at Inco Ltd.'s ...

This residue is treated batchwise in two successive leaching stages. The non-oxidative First-Stage Leach (FSL) process extracts the vast majority of the Ni, Co, Fe and As values. The Second-Stage Leach (SSL) process comprises the aqueous pressure oxidation of a predominantly Cu₂S feed under acid-deficient conditions.

Copper extraction - Wikipedia

This draining process is known as tapping the furnace. The matte taphole is normally a hole through a water-cooled copper block that prevents erosion of the refractory bricks lining the furnace. When the removal of the matte or slag is complete, the hole is normally plugged with clay, which is removed when the furnace is ready to be tapped again.

Xstrata Nickel - Nikkelverk - Sulphuric Acid

The granulated matte is crushed to a very fine powder and then transported to the chlorine leach plant. The metals contained in the matte are separated and distributed to the various process areas for further purification and refining. From there, the products are cut, packaged and shipped to world markets.

Marja Riekkola-Vanhanen Finnish expert report on best ...

HELSINKI 1999 Marja Riekkola-Vanhanen Finnish expert report on best available techniques in nickel production The Finnish Environment 317 FINNISH ENVIRONMENT INSTITUTE

Direct Leaching of sulfides: Chemistry and applications ...

Abstract. The sulfide minerals associated with copper, nickel, zinc, lead, and molybdenum concentrates are described according to their thermodynamic stability zones on Eh-p H diagrams.From these zones, the chemistry associated with various thermodynamically feasible decomposition paths is discussed, and process developments associated with the most favorable decomposition paths are briefly ...

Chlorine leach process - FALCONBRIDGE NICKEL MINES LIMITED

Apr 29, 1975· FALCONBRIDGE NICKEL MINES LIMITED ... particular redox potential that is maintained depends on both the type of particles being leached and the object of the leach. In the process of FIG. 1, for example, in which it is intended to leach nickel preferentially with respect to copper and PM's in a nickel-copper matte, FIG. 4 illustrates clearly ...

NICKEL MATTE CHLORIDE LEACHING - outotec.com

This latest solution, the Outotec Nickel Matte Chloride Leaching Process, is suitable for nickel refining and is a highly flexible, calcium chloride based processing route for nickel matte and other nickel-containing raw mate-rials. It incorporates two-stage leaching and iron precip-itation stages that make the recovery of precious metals

Chlorine leaching mechanism of nickel sulfide

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US Patent for Leaching of copper-nickel concentrates ...

A process for the treatment of nickel-copper concentrates comprises the steps of leaching nickel selectively with a dilute hydrochloric acid solution, separating the leach solution from the residue, roasting the residue at a temperature sufficient to form at least about the stoichiometric quantity of sulphate to convert all the nickel present in the residue to nickel sulphate, leaching the ...

A cupric chloride-oxygen leach process for a nickel-copper ...

A cupric chloride--oxygen leach Process for a nickel--copper sulphide concentrate. I-]ydrometaUurgy, 15: 25--32. The paper reports leaching studies on a nickel--copper sulphide mineral concentrate with cupric chloride in a strong brine solution under a moderate pressure of oxygen.

Separation of nickel from copper in autoclave by ...

The applicant/owner of the patent is registered as Falconbridge Limited. They used the patent attorney firm PHILLIPS ORMONDE FITZPATRICK to file this. Australian patent AU1987071952 is one of over a million that we feature on IP in Australia which covers the entire spectrum of patents in Australia.

US7736606B2 - Process for the recovery of value metals ...

A process for leaching a value metal from a base metal sulfide ore, comprising the step of leaching the ore with a lixiviant comprising a chloride, an oxidant and hydrochloric acid is disclosed. The leaching is controlled, by use of low concentrations of hydrochloric acid and a redox potential, to effect formation of hydrogen sulfide from the base metal sulfide ore.

t Thenon-oxidative dissolutionofnickelmattes ...

deermiddel. 'nRelatiefselektiewe oplossing vanyster uitdielaegraadse matte kanonder reduserende toestande verkry wordwat'nbeduidende opgradering vanhierdie materiaal totgevolghet. The Falconbridge matte-leaching processl is based upon theselective non-oxidative leaching ofnickel from aconverter matte containing nickel, copper, andprecious

Acid leaching of nickel sulphide concentrates - ScienceDirect

The Falconbridge Matte Process (Thornhill et al., 1971) has not been used on mineral concentrates, but has been very successful in leaching cupriferous smelter matte (rich in Ni3S2) with 8 M HCI and is a most elegant process. The obvious acid leaching process, viz. digestion with acid to produce H2S and a nickel salt, has not been used at all ...

atmospheric ammonia leach matte - inrem.in

chemical used in nickel leaching mineral. The most important nickel mineral is One process is the ammonia pressure leach, ... Atmospheric acid leaching of nickel copper matte from .

What is the difference between Falconbridge matte leach ...

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US4067952A - Leaching of copper-nickel concentrates ...

A process for the treatment of nickel-copper concentrates comprises the steps of leaching nickel selectively with a dilute hydrochloric acid solution, separating the leach solution from the residue, roasting the residue at a temperature sufficient to form at least about the stoichiometric quantity of sulphate to convert all the nickel present in the residue to nickel sulphate, leaching the ...

The Falconbridge Matte Leach Process - Google Books

The Falconbridge Matte Leach Process Contributors P. G. Thornhill, E. Wigstol, G. van Weert, FALCONBRIDGE NICKEL MINES LTD TORONTO (Ont.)*, Falconbridge Nickel Mines Limited

Falconbridge Ltd. - Wikipedia

Falconbridge Limited was a Toronto, Ontario-based natural resources company with operations in 18 countries, involved in the exploration, mining, processing, and marketing of metal and mineral products, including nickel, copper, cobalt, and platinum.It was listed on the TSX (under the symbol FAL.LV) and NYSE (FAL), and had revenue of US$6.9 billion in 2005.

Copper recovery using leach/solvent extraction ...

process. The SX process must be compatible with, and complimentary to, the metal leaching process that precedes it and the metal recovery process that follows. The paper should acknowledge that most of the advances in a metal recovery technology are made for economic reasons. This discussion of the leach/solvent extraction/electrowinning

(PDF) Atmospheric chloride leaching: The way forward for ...

Atmospheric chloride leaching: The way forward for nickel laterites ... "The Falconbridge Matte Leach Process", Journal of ... it seemed that Jaguar Nickel's Atmospheric Chloride Leach Process ...

Recovery of nickel, copper and precious metal concentrate ...

Abstract. Falconbridge Nikkelverk A/S sequentially treats high grade precious metal copper nickel mattes with HCI and chlorine, producing a precious metal concentrate having a bulk no greater than 1% of the original matte.