Nickel Smelting and Refining -

nickel. Process gases are cooled, and particulates are then removed by gas-cleaning devices. Nickel Refining Various processes are used to refine nickel matte. Fluid bed roasting and chlorine-hydrogen reduc-tion produce high-grade nickel oxides (more than 95% nickel). Vapor processes such as the carbo-nyl process can be used to produce high ...

Hydrometallurgy of nickel - YouTube

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Nickel: Extraction and purification

Apr 24, 2010· The resultant carbon monoxide is re-circulated through the process. The highly pure nickel produced by this process is known as carbonyl nickel. A second common form of refining involves the leaching of the metal matte followed by the electro-winning of the nickel from solution by plating it onto a cathode.

ISACONVERT™ – Continuous Converting of Nickel/PGM …

287 matte tap-hole and, depending on downstream refinery requirements, the matte may be either granulated or slow-cooled. Figure 1: Process Block Diagram for the Nickel/PGM ISACONVERT™ Process Slag would be tapped through a separate tap-hole and returned to the primary

Extraction and Refining of the Platinum Metals | Johnson ...

The complete process of extraction consists essentially of enriching this matte to approximately 65 per cent content of platinum metals and then treating this concentrate with acids to separate the individual platinum group metals from each other, followed by final refining.

Nickel: smelting, producing-Metalpedia

A second common form of further refining involves the leaching of the metal matte into a nickel salt solution, followed by the electro-winning of the nickel from solution by plating it onto a cathode as electrolytic nickel. Mond process; Purification of nickel oxides to obtain the purest metal is performed via the Mond process, which increases ...

Smelting and refining | Glossary | Sumitomo Metal Mining ...

Smelting and refining. ... the copper concentrate pre-processing undertaken at Saijo uses pyrometallurgical processes and the nickel refining at the Niihama site uses hydrometallurgical processes entirely. ... The term 'refining' refers to any process that increases the grade or purity of a metal. Back to Glossary. Simulation of unit ...

Nickel -

Vale is the world's largest producer of nickel, one of the most versatile metals in existence. Hard and malleable, nickel resists corrosion and maintains its mechanical and physical properties even when subjected to extreme temperatures. Our high-qualitynickelis also valued for its …

nickel refining process -

Nickel Recycling in the United States in 2004 USGS Publiions . Apr 20, 2009 Refining includes these steps: Leaching.—Finely ground nickel matte mixes with process liquor (recycled from the final leaching tank), and the mixture flows into autoclaves for reaction with air and ammonia at high pressure.

Nickel processing |

Nickel processing, preparation of the metal for use in various products. Although it is best known for its use in coinage, nickel (Ni) has become much more important for its many industrial applications, which owe their importance to a unique combination of properties. Nickel has a relatively high

12.3 Primary Copper Smelting

Pyrometallurgical techniques use heat to separate copper from copper sulfide ore concentrates. Process steps include mining, concentration, roasting, smelting, converting, and finally fire and electrolytic refining. 12.3.2 Process Description2-4 Mining produces ores with less than 1 percent copper. Concentration is accomplished at the

Nickel Refining | Products & Suppliers | Engineering360

Description: Tight refining margins, increased competition, and the need to avoid adverse publicity and fines due to environmental leaks make continued, safe, reliable operation extremely important. This paper presents a series of case studies where high nickel alloys {UNS N10276, UNS N06022, UNS

(PDF) Nickel extraction from nickel matte -

separate nickel from another elements in nickel matte are t hrough nickel matte electro refining [8], or through a combina tion processes of hydro and electrometallurgy as shown in process flow ...

refining nickel leaching -

A second common refining process is leaching the metal matte into a nickel salt solution, followed by the electro winning of the nickel from. Contact US nickel matte chloride leaching Outotec. This new approach incorporates multiple leaching steps in Outotec OKTOP . Nickel Matte Chloride. Leaching Process, is suitable for nickel refining and is a.

US1599424A - Refining nickel matte and nickel-copper matte ...

6. In'the process of eliminating sulphur from nickel matte or nickel-copper matte or metal, the steps consisting of treating the material in the molten state with a mixture of air-and fuel of an oxidizing character, and then treating the same with a mixture of air and fuel of a non-oxidizing character.- 7.

Facility Introduction : Niihama Nickel Refinery | About Us ...

Nickel Matte being Introduced into the Process. Nickel matte with a 70% nickel grade, procured from mines and smelters that we have a stake in, and nickel / cobalt mixed sulfide with a 60% nickel grade produced in Coral Bay Nickel Corporation and Taganito HPAL Nickel Corporation, which are SMM subsidiaries, using the HPAL (High Pressure Acid ...

Nickel processing - Extraction and refining |

In carbonyl refining, carbon monoxide is passed through the matte, yielding nickel and iron carbonyls [Ni(CO) 4 and Fe(CO) 5]. Nickel carbonyl is a very toxic and volatile vapour that, after purification, is decomposed on pure nickel pellets to produce nickel shot. Copper, sulfur, and precious metals remain in the residue and are treated ...

Nickel - Wikipedia

The nickel matte is further processed with the Sherritt-Gordon process. First, copper is removed by adding hydrogen sulfide, leaving a concentrate of cobalt and nickel. Then, solvent extraction is used to separate the cobalt and nickel, with the final nickel content greater than 99%. ... A second common refining process is leaching the metal ...

Nickel and Cobalt Production - ScienceDirect

The precipitates are then processed on-site or sent to a refinery where they are refined using hydrometallurgical processes similar to those employed in sulfide matte refining. Limonite ores can also be processed through a pyro/hydrometallurgical route called the Caron process. Significant recycling of nickel and cobalt occurs.

Processing Nickel Ores -

Since the solution still contains some nickel, it is re-processed again to recover the remaining nickel. The nickel can then be removed through a cone bottomed tank or by a thickener/filter operation to yield the nickel powder. It is then dried and sent to a briquette process where it …

copper refining process nickel flux -

Nickel carbonyl, Ni(CO) 4, a liquid at room temperature, is employed in the carbonyl nickel-refining process. Like all other carbonyls, it is poisonous. Nickel subsulfide, Ni 3 S 2, is the nickel component of matte involved in pyrometallurgy. Nickel oxide, NiO, is involved in refining … Get price

Extraction and Refining of the Platinum Metals

nickel and copper anodes. 2. Electro-refining operations, where these anodes are dissolved electrolytically to produce pure nickel and copper and an anode slime containing the precious metals. 3. Chemical operations, for the separation and refining of the individual metals. Smelting Operations Converter matte from Rustenburg arrives

Electrolytic and Electroless Nickel | Products Finishing

Jun 01, 2008· Please keep in mind that the tables are general and there are many variations in both electrolytic and electroless plating baths. As the above information indicates, electrolytic and electroless nickel are normally not interchangeable. In general, electroless nickel is more expensive than electrolytic nickel to apply on a square foot basis.

Cobalt extraction - Wikipedia

Nickel-cobalt lateritic ores can be treated by either hydrometallurgical processes or pyrometallurgical processes, such as matte or ferronickel smelting, which require the entire ore to be melted and the metal values to be separated from the residual components of the ore. The hydrometallurgical process for laterite ore can use sulfuric acid or ...

Our Operation -

PT Vale produces nickel in matte, an intermediate product, from lateritic ores at our integrated mining and processing facilities near Sorowako on the island of Sulawesi. Our entire production is sold in US dollars under long-term contracts for refining in Japan.

nickel refining process -

Nickel dimethylglyoxime is an insoluble salt useful in analytical chemistry in precipitating nickel. Nickel carbonyl, Ni(CO) 4, a liquid at room temperature, is employed in the carbonyl nickel-refining process. Like all other carbonyls, it is poisonous. Nickel subsulfide, Ni 3 S 2, is the nickel component of matte involved in pyrometallurgy.

Process Development -

Leaching of nickel-copper matte and recovery of platinum group metals Sherritt's matte leach process uses sulphuric acid leaching in a combination of atmospheric and/or pressure leaching steps to quantitatively dissolve nickel and copper in nickel-copper matte and produce a high-grade platinum group metal (PGM) concentrate for refining.

BHP | Nickel West

Nickel West Kwinana then refines granulated nickel matte from the Kalgoorlie smelter into premium-grade nickel powder and briquettes containing 99.8 per cent nickel. Nickel matte and metal are exported to overseas markets via the Port of Fremantle. Over 75% of BHP's nickel is now sold to global battery material suppliers.

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

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.

Environmental Guidelines for Nickel Smelting and Refining

Nickel refining Various processes are used to refine nickel matte. Fluid bed roasting and a chlorine-hydrogen reduction will produce high grade nickel oxides (95%+ nickel). Vapor processes, such as the carbonyl process, can be used to produce high purity nickel pellets. In this process, copper and precious metals remain as a pyrophoric residue ...