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nickel matte leaching

Nickel Matte Sulphate Leaching Process - Metso

The Outotec Nickel Matte Sulphate Leaching Process offers a proven processing method for various nickel containing raw materials. Outotec's industry leading sulphate-based pressure leaching is the key to the process to guarantee high recoveries of nickel,

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Nickel leaching from low-grade nickel matte using

2019-11-14  Nickel and other valuable metals such as copper and cobalt were traditionally leached from nickel matte and separated into individual metal from the

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Kinetics of nickel leaching from low-nickel matte in ...

2020-6-1  In heterogeneous reactions, the leaching process of low-nickel matte in sulfuric acid solution consists of five steps as follows : (1) Transport of H + ions from the bulk solution to the particle surface; (2) Diffusion of H + ions through the solid residual layer from the particle surface to the surface of unreacted core of low-nickel matte; (3) Reaction between H + ions and low-nickel matte on the

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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

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CA2265391A1 - Method for leaching nickel from

The leach of nickel matte is carried out as pressure leach in one or several stages by means of copper sulfate. The invention relates to a method for leaching sulfidic nickel matte and particularly...

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Nickel-copper matte leaching process under a tmospheric ...

2013-12-16  Nickel processing and leaching mechanism Conventionally, two process routes are employed for leaching Ni-Cu matte. The first one involves both atmospheric and pressure leaching in acidic nickel-copper sulphate solution, with oxygen being the oxidizing

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Atmospheric acid leaching of nickel- copper matte from ...

2009-8-26  employed for leaching Ni-Cu matte. The first one involves both atmospheric and pressure leaching in acidic copper–nickel 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 O2/air is sparged into the leaching vessels. During

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A method for extracting valuable metals from low

Specially, Sheng et al. treated low nickel matte by oxygen pressure leaching process. The recovery of valuable metals were over 98% at 180 °C with 1.6 MPa oxygen pressure. Although the copper and nickel can be leached out in these processes, the subsequent separation was still difficult.

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Selective Nickel Leaching from Nickel and Cobalt Mixed ...

pyrometallurgical processes used to produce nickel matte. As a raw material, MS is used for various kinds of oxidative nickel leaching processes, including: 1) chlorine leaching by chlorine gas; and 2) pressure leaching by oxygen gas.

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Selective Nickel Leaching from Nickel and Cobalt Mixed ...

pyrometallurgical processes used to produce nickel matte. As a raw material, MS is used for various kinds of oxidative nickel leaching processes, including: 1) chlorine leaching by chlorine gas; and 2) pressure leaching by oxygen gas. (1) Chlorine leaching is a well-known selective nickel leaching process with high efficiency, which has been

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Nickel Matte Sulphate Leaching Process - Metso

The Outotec Nickel Matte Sulphate Leaching Process offers a proven processing method for various nickel containing raw materials. Outotec's industry leading sulphate-based pressure leaching is the key to the process to guarantee high recoveries of nickel,

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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

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Atmospheric acid leaching of nickel- copper matte from ...

2009-8-26  Atmospheric acid leaching of nickel-copper matte from Impala Platinum Refineries The pre-leach stage in the second process route alternative, described above, is the subject of this study. The study investigates the leaching behaviour of Ni–Cu matte in H2SO4-CuSO4 solution during the repulping stage at Impala Platinum Refinery.

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Nickel-copper matte leaching process under a tmospheric ...

2013-12-16  Nickel processing and leaching mechanism Conventionally, two process routes are employed for leaching Ni-Cu matte. The first one involves both atmospheric and pressure leaching in acidic nickel-copper sulphate solution, with oxygen being the oxidizing

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ACID LEACHING PROCESS FOR TREATING HIGH

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.

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Extraction of valuable metals from low nickel matte by ...

2019-11-7  recovery of Ni, Cu, and Co from low nickel matte has been studied via hydrometallurgical processes such as atmospheric pressure acid leaching, ammonia leaching, oxygen pressure acid leaching and oxidative leaching [9,10]. Among these processes, only the oxygen pressure acid leaching method could achieve a high recovery of metals.

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Pressure Acid Leaching of Nickel Laterites: A Review ...

2018-6-10  Abstract. A review of the literature over the past 30 years on the processing of nickel laterites by high temperature acid leaching has been carried out to provide a better understanding of the mineralogy, leaching process chemistry and effect of operating conditions on nickel

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Extraction of valuable metals from low nickel matte by ...

A calcified roasting-acid leaching process was developed as a highly effective method for the extraction of valuable metals from low nickel matte in the presence of CaO additive. The influences of process parameters on the metal extraction were studied, including the ...

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Kinetics of nickel leaching from low-nickel matte in sulfuric ...

2020-5-7  Kinetics of nickel leaching from low-nickel matte in sulfuric acid solution under atmospheric Hydrometallurgy ( IF 3.338) Pub Date : 2020-05-07, DOI: 10.1016/j.hydromet.2020.105353 Wanhai Xiao, Xuheng Liu, Zhongwei Zhao

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Method for leaching nickel from nickel matte - Oyj,

1999-3-12  A method of leaching nickel from a sulfidic nickel-copper matte wherein said matte is pressure leached in an autoclave with copper sulfate in one stage 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- and copper-bearing solution, wherein ...

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Nickel-copper matte leaching process under a tmospheric ...

2013-12-16  Nickel processing and leaching mechanism Conventionally, two process routes are employed for leaching Ni-Cu matte. The first one involves both atmospheric and pressure leaching in acidic nickel-copper sulphate solution, with oxygen being the oxidizing

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Method of leaching of nickel-copper matte

After leaching in the second stage we can say that the leaching of elemental Nickel and Nickel sulfide Ni 3 S 2 contained in the matte, actually finished, and Nickel compounds in the resulting sludge has mainly secondary Nickel sulfide NiS, which was formed in the reactions at this stage. In addition, sediment naturally contains insoluble ...

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Kinetics of nickel leaching from low-nickel matte in sulfuric ...

2020-5-7  Kinetics of nickel leaching from low-nickel matte in sulfuric acid solution under atmospheric Hydrometallurgy ( IF 3.338) Pub Date : 2020-05-07, DOI: 10.1016/j.hydromet.2020.105353 Wanhai Xiao, Xuheng Liu, Zhongwei Zhao

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Extraction of valuable metals from low nickel matte by ...

2019-11-7  recovery of Ni, Cu, and Co from low nickel matte has been studied via hydrometallurgical processes such as atmospheric pressure acid leaching, ammonia leaching, oxygen pressure acid leaching and oxidative leaching [9,10]. Among these processes, only the oxygen pressure acid leaching method could achieve a high recovery of metals.

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Chlorine Leaching Mechanism of Nickel Sulfide

Two types of nickel sulfide, nickel matte and mixed sulfide (MS: mixture sulfide of nickel and cobalt), are treated in the MCLE process, and the leaching rate difference for each materials become obvious in this process. Bench scale tests had been carried out and leaching rates and activation energies of chlorine leaching reactions were identified.

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Extraction of valuable metals from low nickel matte by ...

A calcified roasting-acid leaching process was developed as a highly effective method for the extraction of valuable metals from low nickel matte in the presence of CaO additive. The influences of process parameters on the metal extraction were studied, including the ...

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Nickel 28 Comments on Tsingshan’s Nickel Matte

2021-3-8  Matte leaching (converting nickel matte to a refined nickel product) is more complex and expensive than dissolving nickel briquettes or powder.”

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钴冰镍常压浸出工艺研究_百度文库

AtmosphericPressure Leaching Process Of CObalt—nickel Matte ZHOU Yong—mao,HU Bao—lei (School of Metallurgical Science and Engineering,Central South ...

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Pressure Acid Leaching of Nickel Laterites: A Review ...

2018-6-10  Abstract. A review of the literature over the past 30 years on the processing of nickel laterites by high temperature acid leaching has been carried out to provide a better understanding of the mineralogy, leaching process chemistry and effect of operating conditions on nickel

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