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Matte Leaching Process

Nickel Matte Sulphate Leaching Process Metso Outotec

The Outotec Nickel Matte Sulphate Leaching Process offers a proven processing method for various nickel containing raw materials. Outotecs industry leading sulphate-based pressure leaching is the key to the process to guarantee high recoveries of nickel, cobalt and precious metals. High-quality nickel end products and saleable precious metals by-products.

Nickel Matte Chloride Leaching Process Metso Outotec

The Outotec Nickel Matte Chloride Leaching Process provides a reliable and environmentally sustainable processing method for various nickel-containing raw materials. Our process utilizes highly effective Outotec atmospheric chloride leaching coupled with our world-renowned VSF solvent extraction and electrowinning technology.

High Pressure Acid Leaching Of Co Matte Converted From

An alternative leaching process of using matte is suggested. Cobalt concentrates are first converted to matte, enriching their major elements of Co, Cu and Fe, and the matte is treated by sulfuric acid pressurized leaching. The Co concentrate includes Co oxides as valuable minerals, whereas Co, Cu and Fe exist predominantly as sulfides in the ...

Selective Leaching Of Lead From Matte And Slag Of Lead

Nov 23, 2020 Lead was selectively leached from the residues matte and slag of a secondary lead smelter using EDTA as lixiviant. The residues were composed mainly of iron 3466 wt and lead 711 wt. 100 of the lead was leached with less than 2 of the iron co-dissolved, using a multi-step leaching process where the leaching residues were contacted three times by a fresh EDTA solution.

Method Of Leaching Of Nickelcopper Matte

The method of extraction of precious metals from finely ground Nickel-copper matte, which includes at least one stage of leaching at atmospheric pressure, at least one stage leaching under pressure and flow formed in the process of solution of Nickel sulfate after treatment for electrolytic selection of Nickel, characterized in that the first ...

Leaching Characteristics Of Nicu Matte In The Acidoxygen

The mineralogical changes and reaction mechanisms occurring in the Impala Platinum acid-oxygen pressure leaching process of Ni-Cu matte were postulated. The complex interactions of the various minerals with one another were clarified by considering the change in the mineral species during the leaching process.

Acid Leach Process For Nickel Copper Mattes By

Claim 1. A continuous process for separating and recovering copper and nickel values contained in substantially non-magnetic nickel-copper matte, said process including leaching finely livided particles of said matte in a first-stage pressure leach under an initial oxygen ovea-ressure of above about 10 psig and at a temperature above about 100 0 C in an aqueous acid sulphate solution having a ...

Outotecs Innovative Nickel Matte Leach Process E Amp Mj

The leaching residue weight is about 25 of that of the matte fed into the process. Iron is precipitated using slaked lime or limestone at around pH 2 while oxygen is fed to the reactors. Under these conditions, iron precipitates as goethite. Controlled sulfur removal at this stage significantly decreases scaling in the downstream process.

Atmospheric Acid Leaching Of Nickel Copper Matte From

Conventionally, two process routes are employed for leaching Ni-Cu matte. The first one involves both atmospheric and pressure leaching in acidic coppernickel sulphate solution, with oxygen being the oxidizing agent. In this process the matte is first leached under atmospheric conditions followed by a pressure leach step, and in both steps ...

Sulfuric Acid Leaching Of Smelter Matte 911 Metallurgist

May 28, 2017 Sulfuric acid used in the matte leaching experiments was either a reagent- grade 95 to 98 pct H2SO4 or black acid. The black acid, obtained from a Missouri lead smelter, was produced by the Monsanto contact acid process in which the SO2-laden gas from the sintering machine was purified, cooled, and then contacted with a vanadium pentoxide ...

Selective Leaching Of Lead From Matte And Slag Of Lead

Lead was selectively leached from the residues matte and slag of a secondary lead smelter using EDTA as lixiviant. The residues were composed mainly of iron 3466 wt and lead 711 wt. 100 of the lead was leached with less than 2 of the iron co-dissolved, using a multi-step leaching process where the leaching residues were contacted three times by a fresh EDTA solution.

Acid Leaching Process For Treating High Grade

Nickel and copper values are separately recovered from copper-nickel-sulphide matte by means of a multi-stage acid leach process. The matte is treated in a first leaching stage in which the acid to acid-reactive metals molar ratio and leaching time are controlled to selectively extract the bulk of the nickel values while the copper values remain in the leach residue.

Outotecs Innovative Nickel Matte Leach Process E Amp Mj

In total, the leaching process takes about 10 to 15 hours to complete. The leaching residue weight is about 25 of that of the matte fed into the process. Iron is precipitated using slaked lime or limestone at around pH 2 while oxygen is fed to the reactors. Under these conditions, iron precipitates as goethite.

Atmospheric Acid Leaching Of Nickel Copper Matte From

Conventionally, two process routes are employed for leaching Ni-Cu matte. The first one involves both atmospheric and pressure leaching in acidic coppernickel sulphate solution, with oxygen being the oxidizing agent. In this process the matte is first leached under atmospheric conditions followed by a pressure leach step, and in both steps O2air is

Us3741752a Acid Leaching Process For Treating High Grade

Nickel and copper values are separately recovered from coppernickel-sulphide matte by means of a multi-stage acid leach process. The matte is treated in a first leaching stage in which the acid to...

Parametric Effects On Leaching Behavior Of Nickel

the leaching process, the as-received matte sample was ana-lyzed to determine its chemical composition and crushed using a pulverizing machine and screened to obtain a desired particle size of 80 passing 75mm. A predetermined quan-tity of the ammonia solution was added to the leaching ves-sel and heated to the desired temperature. Then, 66.7g ...

Leaching Ecological Behavior Of Indium From Lead

Leaching Ecological Behavior of Indium from Lead-Containing Copper Matte Using Oxidation Roasting - Leaching Process. Dafang Liu, Xingxiang Fan, Yifeng Shi, Kunbin Yang. Ekoloji, 2018, Issue 106, Pages 667-676, Article No e106123 OPEN ACCESS Download Full Text PDF Abstract. Lead-containing copper matte LCCM is an ecologically intermediate ...

Kinetic Parameters For The Process Of Sulfatization

Kinetic parameters for the process of sulfatization roasting and leaching of copperlead matte Duan Mini , Nada trbac , Ivan Mihajlovi , Desimir Petkovi , ivan ivkovi 0 0

Leaching And Recovery Of Gold From Ore In Cyanidefree

Selective leaching of lead from matte and slag of lead smelter plants using EDTA November 23, 2020 A novel ammoniacal leaching process to valorise Zn-rich Basic Oxygen Furnace sludges

Selective Leaching Of Lead From Lead Smelter Residues

employed a solvometallurgical leaching process using concen-trated acetic acid to recover the valuable metals from the lead smelter residues.9 The process could leach 90 of lead with 6 co-leaching of iron from matte and lower lead leaching of 70 from the slag. Although this process

Closedloop Solvometallurgical Process For Recovery Of

The leaching process with acetic acid was optimised for the matte, because this residue is the most interesting one from an economical point of view the matte has a high lead content and the iron content of the residue obtained after removal of lead is so high that this material can be used as a secondary raw material for iron production.

Sulfuric Acid Leaching For Low Nickel Matte Under

Apr 19, 2021 Technology is developed and demonstrated at plant scale for leaching high iron 0.5 Ni-Cu matte with spent copper sulfate tankhouse electrolyte

A Sustainable And Selective Roasting And Waterleaching

Mar 05, 2018 This article describes a sulfating roasting water-leaching process. Before the roasting test, the matte sample was crushed, ground and screened into fractions with a predetermined particle size. Then, the fraction was mixed with ammonium sulfate in a particular mass ratio, pelletized with a diameter range of 510 mm and dried at 80 C for 24 h.

Method For Leaching Nickel From Nickel Matte Oyj

Mar 12, 1999 What is claimed is 1. A method of leaching nickel from a sulfidic nickel-copper matte containing nickel, copper, and iron wherein said matte is pressure leached with copper sulfate at a temperature above the ambient temperature of said matte feed up to about 160 C. to produce a slurry containing a precipitate of digenite and a nickel sulfate bearing solution, and also leaching an ...