nickel recovery process patents
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nickel recovery process patents

Process for the recovery of nickel - Google Patents

A process for the recovery of nickel from a nickel containing ore in which the ore, particularly a laterite ore, is initially leached with an aqueous acid solution, after which the nickel is precipitated as nickel hydroxide by adding a hydroxide to the aqueous acid leach solution containing the nickel, followed by a re-leaching of the nickel with an aqueous ammoniacal solution and recovery of ...

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US6261526B1 - Nickel recovery process and ... - Google Patents

A process for the recovery of nickel from a nickel containing ore in which the ore, particularly a laterite ore, is initially leached with an aqueous acid solution, after which the nickel is precipitated as nickel hydroxide by adding a hydroxide to the aqueous acid leach solution containing the nickel, followed by a re-leaching of the nickel with an aqueous ammoniacal solution and recovery of ...

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US6733564B1 - Process for recovery of nickel from spent ...

The present invention relates to a process for recovery of nickel and alumina from spent catalyst by direct leaching with sulphuric acid in presence of small amount of an additive. The invention is useful for recovery of both nickel and sources of nickel and therefore important from the view of environmental protection, resource recycling and conservation.

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WO2009152587A1 - Process for the recovery of nickel and/or ...

A process for the recovery of nickel and/or cobalt from a nickel and/or cobalt containing solution comprising: (i) contacting the nickel and/or cobalt containing solution with metallic particles of at least one metal that is more electronegative than nickel and/or cobalt thereby enabling a cementation process to occur between the nickel and/or cobalt in the solution and the metallic particles ...

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WO2005005671A1 - Process for recovery of nickel and cobalt ...

A process for the recovery of nickel and cobalt from laterite ores, the process including the steps of: a) beneficiating the ore to separate it into a beneficiated upgraded ore fraction and a coarse, siliceous low grade rejects fraction which is substantially free from fines and clay materials; b) separately processing the upgraded ore fraction for the recovery of nickel and cobalt; and c ...

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US4311520A - Process for the recovery of nickel, cobalt ...

A process for the recovery of nickel, cobalt or manganese from their oxides or silicates wherein such process, which requires the application of heat, is improved by utilizing microwave energy as the source of heat. The microwave energy may be utilized to cause the reduction of these values enabling such reduced values to then be recovered by conventional leaching processes.

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US4311520A - Process for the recovery of nickel, cobalt ...

A process for the recovery of nickel, cobalt or manganese from their oxides or silicates wherein such process, which requires the application of heat, is improved by utilizing microwave energy as the source of heat. The microwave energy may be utilized to cause the reduction of these values enabling such reduced values to then be recovered by conventional leaching processes.

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US Patent for Nickel recovery from a high ferrous content ...

May 12, 2008  A process is described for the recovery of nickel and/or cobalt from laterite or partially oxidized lateritic ores having a substantial proportion of the iron present in the ferrous state. The process includes providing a laterite or partially oxidized laterite ore wherein a substantial proportion of the iron present in the ore is in the ferrous state; acid leaching the ore to provide a ...

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Process for the recovery of nickel - Henkel Corporation

Apr 29, 1997  A process for the recovery of nickel from a nickel containing ore in which the ore, particularly a laterite ore, is initially leached with an aqueous acid solution, after which the nickel is precipitated as nickel hydroxide by adding a hydroxide to the aqueous acid leach solution containing the nickel, followed by a re-leaching of the nickel with an aqueous ammoniacal solution and recovery of ...

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NICKEL RECOVERY PROCESS - SUMITOMO METAL MINING CO

Nickel recovery process relating to the present embodiment is a process for recovering nickel from S 0 slurry, residue flaker and chlorine-leached residue, which are byproducts of an electrolytic nickel manufacturing process by chlorine-leaching, in a nickel recovery step S60, a nickel recovery step S70 and a nickel recovery step S80, as ...

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Hydrometallurgical process for the recovery of nickel and ...

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A process for the extraction, separation and recovery of nickel, cobalt, and copper from a nickel-cobalt-copper-sulfide containing flotation concentrate comprising: preparing a slurry containing said sulfide containing flotation concentrate and contacting said slurry with an ...

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Atmospheric leach process for the recovery of nickel and ...

May 24, 2001  Atmospheric leach process for the recovery of nickel and... is a Patent located in USA, in Chemistry of inorganic compounds, Treating mixture to obtain metal containing compound, Iron group metal. Search LandOfFree for the USA inventors and patents. Rate them and share your experience with other people.

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HYDROMETALLURGICAL PROCESS - CESL Wins Patent for Nickel ...

Dec 01, 2004  The process is an environmentally sound, low capital cost alternative to nickel smelting with broad applicability in the industry. It was developed at CESL’s Vancouver-based pilot plant facilities between 1996 and 2002. A flowsheet of the process may

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Nickel extraction process - Henkel Corporation

Oct 25, 1993  The recovery of nickel from aqueous ammoniacal solutions containing nickel values by extraction of the nickel values therefrom with an organic solution containing an oxime extractant and an equilibrium modifier followed by stripping of the nickel values from the organic solution by a concentrated aqueous ammoniacal solution from which the nickel can then be recovered.

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Segregation roast process for the recovery of nickel from ...

The present invention relates to the recovery of nickel from ore and more particularly to an improved process for recovering nickel concentrate from lateritic ores. One method previously devised for recovering nickel from lateritic ores is a segregation roast process.

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RECOVERY OF COPPER, NICKEL, COBALT AND MOLYBDENUM

The process of this invention comprises roasting a complex ore containing manganese, iron, copper, nickel, molybdenum and cobalt admixed with a carbonaceous material whose carbon content is from about 3 to about 10 percent by weight of the complex ore, leaching the roasted complex ore with a solution of an ammonium salt in ammonium hydroxide ...

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Electric car battery: An overview on global demand ...

Compared with the Tsuruga process (6.1.3), the German route uses Fe/NaOH after carbon recovery for copper and aluminum precipitation, remaining from the separation step previous to leaching. In the solvent extraction step, Cyanex 272 and 301 are used for cobalt and nickel extraction, in which these organic extractants are long-established ...

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Canada Nickel Announces Main Zone Extension and Additional ...

First higher grade PGM intersections in main dunite mineralization – two holes yielded true width of 3.9 metres of 1.6 g/t PGM and 0.49% nickel, and 6.7 metres of 1.6 g/t PGM and 0.30% nickel; PGM zone successfully intersected by an additional 5 holes (20 holes total in Main Zone across 2.4 km strike length). New PGM zone discovered at North ...

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US Patent for Recovery of nickel from bioleach solution ...

Jul 17, 1995  A bioleaching method is provided for recovering nickel from an ore selected from the group consisting nickel-containing lateritic ores and nickel-containing sulfidic ores or concentrates thereof. Where the ore selected is a nickel-containing lateritic ore, at least one micro-organism selective to the leaching of the lateritic ore is provided as an aqueous solution thereof maintained at a pH ...

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NICKEL RECOVERY PROCESS - SUMITOMO METAL MINING CO

Nickel recovery process relating to the present embodiment is a process for recovering nickel from S 0 slurry, residue flaker and chlorine-leached residue, which are byproducts of an electrolytic nickel manufacturing process by chlorine-leaching, in a nickel recovery step S60, a nickel recovery step S70 and a nickel recovery step S80, as ...

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US Patent for Process for recovery of nickel and cobalt by ...

Jul 13, 2004  A process for the recovery of nickel and cobalt from laterite ores, the process including the steps of: a) beneficiating the ore to separate it into a beneficiated upgraded ore fraction and a coarse, siliceous low grade rejects fraction which is substantially free from fines and clay materials; b) separately processing the upgraded ore fraction for the recovery of nickel and cobalt; and c ...

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Process for the recovery of nickel - Henkel Corporation

Apr 29, 1997  A process for the recovery of nickel from a nickel containing ore in which the ore, particularly a laterite ore, is initially leached with an aqueous acid solution, after which the nickel is precipitated as nickel hydroxide by adding a hydroxide to the aqueous acid leach solution containing the nickel, followed by a re-leaching of the nickel with an aqueous ammoniacal solution and recovery of ...

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Nickel extraction process - Henkel Corporation

Oct 25, 1993  The recovery of nickel from aqueous ammoniacal solutions containing nickel values by extraction of the nickel values therefrom with an organic solution containing an oxime extractant and an equilibrium modifier followed by stripping of the nickel values from the organic solution by a concentrated aqueous ammoniacal solution from which the nickel can then be recovered.

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HYDROMETALLURGICAL PROCESS FOR RECOVERY OF NICKEL

What is claimed is: 1. A hydrometallurgical process for recovery of nickel and cobalt applicable to a pulp resulting from lateritic ore leaching, nickel oxidate, cobalt oxidate or a mixture with nickel and cobalt as metals of interest, and other secondary metals regarded as impurities such as manganese, magnesium, calcium, aluminum, iron and chromium wherein the pulp was previously processed ...

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HYDROMETALLURGICAL PROCESS - CESL Wins Patent for Nickel ...

Dec 01, 2004  The process is an environmentally sound, low capital cost alternative to nickel smelting with broad applicability in the industry. It was developed at CESL’s Vancouver-based pilot plant facilities between 1996 and 2002. A flowsheet of the process may

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RECOVERY OF COPPER, NICKEL, COBALT AND MOLYBDENUM

The process of this invention comprises roasting a complex ore containing manganese, iron, copper, nickel, molybdenum and cobalt admixed with a carbonaceous material whose carbon content is from about 3 to about 10 percent by weight of the complex ore, leaching the roasted complex ore with a solution of an ammonium salt in ammonium hydroxide ...

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Nickel Catalyst - Production, Recovery, Recycling ...

Nickel is easier than palladium to remove at the end of the manufacturing process, so it’s also less expensive to purify the finished product. A process for nickel recovery from a spent catalyst of definite composition has been developed using the hydro-metallurgical route.

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Flowsheet Options - Flowsheet Options Albion Process

Flowsheet Options. The Albion Process™ technology can be incorporated with conventional metal recovery technologies, such as cyanide leaching for the recovery of precious metals, and either direct electrowinning or solvent extraction and electrowinning for the recovery of base metals. The oxidative leach can be operated under a range of pH ...

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A New Process for Cobalt Nickel Separation

A New Process for Co-Ni Separation – ALTA 2010 2 ABSTRACT A new process has been developed jointly by CSIRO and CESL, for separating cobalt from nickel in an impure leach solution. The process uses synergistic solvent extraction (SSX) with commercially available reagents, but in a novel and efficient manner using kinetic factors.

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Atmospheric pressure leach process for lateritic nickel ...

Mar 14, 2003  C423S150100, C423S143000, C423S150400. Reexamination Certificate. active. 07416711. ABSTRACT: An atmospheric leach process in the recovery of nickel and cobalt from lateritic ores, said processing including the steps of: a) separating the lateritic ore into a low magnesium containing ore fraction, and a high magnesium containing ore fraction by selective mining or post

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Recovery of nickel and cobalt by controlled sulfuric acid ...

RECOVERY OF METALLIC NICKEL OR COBALT FROM SOLUTION OF CORRESPONDING SALT: 1969-10-21: Fitzhugh, Jr. et al. 75/109: 3466144: TREATMENT OF NICKELIFEROUS OXIDIC MATERIALS FOR THE RECOVERY OF NICKEL VALUES: 1969-09-09: Kay: 23/183: 3365341: Nickel recovery process: 1968-01-23: Fitzhugh, Jr. et al. 75/119: 3333924: Recovery of acids: 1967-08-01 ...

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PROCESS FOR RECOVERY OF URANIUM VALUES FROM IMPURE ...

DOE Patents Patent: PROCESS FOR RECOVERY OF URANIUM VALUES FROM IMPURE SOLUTIONS THEREOF ... nickel, and copper ions and may contain manganese, zinc, and silver ions. In accordance with one procedure. the uranyl ions are reduced to the uranous state, and the impurity ions are complexed with cyanide under acidic conditions. ... {PROCESS FOR ...

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