nickel matte leaching

Leaching of Nickel Sulfide Mattes and Precipitates

Leaching of Nickel Sulfide Mattes and Precipitates

The leaching of matte is more complicated than the leaching of sulfide precipitate because the matte usually contains considerable amounts of copper. The leaching of sulfide precipitates and mattes

Composition and Electrochemistry of Nickel Matte

Composition and Electrochemistry of Nickel Matte

Copper in the matte modifies the potential for alloy dissolution and the rate of anodic dissolution of nickel. At elevated temperatures, Cu(II) in solution exchanges with NiS and completes the leaching of nickel at relatively low potentials without significant oxidation of sulphur to sulphate.

Steadystate optimisation of the leaching process at

Steadystate optimisation of the leaching process at

Kwinana Nickel Refinery is located in Perth, Western Australia, and employs the SherrittGordon ammoniacal pressure leaching process [1, 2] for the extraction of nickel, copper and cobalt. The refinery feed material is a nickel matte that contains metallic nickel (Ni0), heazlewoodite (Ni 3S2), chalcocite

(PDF) ATMOSPHERIC LEACHING OF MATTE AT THE PORT NICKEL

(PDF) ATMOSPHERIC LEACHING OF MATTE AT THE PORT NICKEL

Nickel is leached from the matte by two mechanisms (i) leaching by sulphuric acid and oxygen; and (ii) an anaerobic metal exchange reaction (cementation and metathesis) between cupric ions in

Method of leaching of nickelcopper matte

Method of leaching of nickelcopper matte

The invention consists in that the leaching of Nickel occurs in at least two stages in conditions where there is practically no free sulfuric acid, at these stages leaching of Nickel contained in the matte, mainly carried out using copper, which is an oxidizer. The degree of extraction of

Enhanced methods for nickel recovery from lowgrade ores

Enhanced methods for nickel recovery from lowgrade ores

Enhanced methods for nickel recovery from lowgrade ores and bleed streams. A common method for nickel leaching from the matte is by using ammonia under high pressure, producing a nickelbearing solution. This solution is heated to remove copper, and the use of hydrogen gas under high pressure precipitates nickel metal; remaining nickel in

Nickel West  BHP

Nickel West BHP

Nickel West is a fully integrated minetomarket nickel business. All nickel operations (mines, concentrators, a smelter and refinery) are located in Western Australia. The integrated business adds value throughout our nickel supply chain, with the majority of Nickel Wests current production sold as powder and briquettes.

 Outotecs Innovative Nickel Matte Leach Process

Outotecs Innovative Nickel Matte Leach Process

Outotec, in fact, said it has constantly been developing new, sustainable, and economically viable nickel processing methodsand its nickel matte chloride leaching process is designed to leach matte in atmospheric OKTOP reactors using hydrochloric acid and oxygen, as well as ammonia for pH control.

US4323541A  Selective two stage leaching of nickel from

US4323541A Selective two stage leaching of nickel from

A finelyground nickelcopper matte is leached using an acid at a minimum temperature of approx. 80176; C. and under oxidizing conditions in order to produce a nickel sulfate solution and a nickelcooper sulfide residue, which is separated from the solution and thereafter the nickelcopper sulfide residue is leached using acid in an autoclave at a minimum temperature of 110176; C. and under

 Atmospheric acid leaching of nickelcopper matte

Atmospheric acid leaching of nickelcopper matte

The leaching behaviour of nickeli?189;copper matte in an acidici?189;copper sulphate solution during the repulping stage at Impala Platinum Refineries has been studied. The base metal recovery process consists of a matte repulping stage prior to a series of pressure leach stages. Therefore, the repulping stage is basically an atmospheric leach stage in which the matte containing mostly Ni and Cu

Electrolytic production of CuNi alloy from nickel matte

Electrolytic production of CuNi alloy from nickel matte

In order to reveal the microstructure change of the roasted nickel matte before and after the leaching process, SEM was used to analyze the microstructure of the roasted nickel matte and its leaching residue, as shown in Fig. 6 (a)(b). As can be seen from the SEM images, the roasted nickel matte particles possess rough and porous surface.

Glossary  Nornickel

Glossary Nornickel

Depending on the chemical composition, converter matte may be copper, nickel and coppernickel matte. Converting An autogenous pyrometallurgical process where ferrous and other detrimental impurities are oxidised and removed as slag to produce blister copper (in copper concentrate smelting) or converter matte (in coppernickel concentrate

Nickel

Nickel

A second common refining process is leaching the metal matte into a nickel salt solution, followed by the electrowinning of the nickel from solution by plating it onto a cathode as electrolytic nickel. Mond process. Highly purified nickel spheres made by the Mond process

Outotec's innovative nickel matte leach process.  Free

Outotec's innovative nickel matte leach process. Free

Nov 01, 20140183;32;Outotec, in fact, said it has constantly been developing new, sustainable, and economically viable nickel processing methodsand its nickel matte chloride leaching process is designed to leach matte In atmospheric OKTOP reactors using hydrochloric acid and oxygen, as well as ammonia for pH control.

Sulfuric Acid Leaching of Smelter Matte

Reagents
 Outotecs Innovative Nickel Matte Leach Process

Outotecs Innovative Nickel Matte Leach Process

Outotec, in fact, said it has constantly been developing new, sustainable, and economically viable nickel processing methodsand its nickel matte chloride leaching process is designed to leach matte in atmospheric OKTOP reactors using hydrochloric acid and oxygen, as well as ammonia for pH control.

Copper Residue  Data from the European Copper Institute

Copper Residue Data from the European Copper Institute

Residue, nickel matte leaching is defined as Product obtained by leaching Nickel matte with chlorine or sulphuric acid. It is composed primarily of copper sulphide and sulphates. The Joint Registration dossier was successfully submitted to ECHA on 24th September 2010.

Residue, Nickel matte leaching  Registration Dossier  ECHA

Residue, Nickel matte leaching Registration Dossier ECHA

residue, nickel matte leaching EC Number 9276291 IUPAC Name residue, nickel matte leaching . Type of substance Composition UVCB Origin inorganic Total tonnage band Total range 100 000 1 000 000 tonnes per annum REACH Registered as FULL Submitted Joint

US6206951B1  Method for leaching nickel from nickel matte

US6206951B1 Method for leaching nickel from nickel matte

The invention relates to a method for leaching sulfidic nickel matte and particularly copper rich nickel matte, as well as for leaching said matte together with a metallic copper and/or coppernickel matte. The leach of nickel matte is carried out as pressure leach

Outotecs Innovative Nickel Matte Leach Process  E amp; MJ

Outotecs Innovative Nickel Matte Leach Process E amp; MJ

Outotec described the matte leaching process as an extremely flexible method that can be used for treating a wide variety of raw material feeds. In addition to nickel matte, the process can easily be modified for treating different concentrates and intermediates.

Nickel smelting, producingMetalpedia

Nickel smelting, producingMetalpedia

A second common form of further refining involves the leaching of the metal matte into a nickel salt solution, followed by the electrowinning of the nickel from solution by plating it onto a cathode as electrolytic nickel.

Nickel processing  Extraction and refining  Britannica

Nickel processing Extraction and refining Britannica

Various processes are used to treat nickel matte. One process is the ammonia pressure leach, in which nickel is recovered from solution using hydrogen reduction, and the sulfur is recovered as ammonium sulfate for use as fertilizer.In another, the matte may be roasted to produce highgrade nickel oxides; these are subjected to a pressure leach, and the solution is electro and carbonyl refined.

Composition and Electrochemistry of Nickel Matte

Composition and Electrochemistry of Nickel Matte

Copper in the matte modifies the potential for alloy dissolution and the rate of anodic dissolution of nickel. At elevated temperatures, Cu(II) in solution exchanges with NiS and completes the leaching of nickel at relatively low potentials without significant oxidation of sulphur to sulphate.

A New Process for Cobalt Nickel Separation

A New Process for Cobalt Nickel Separation

A New Process for Cobalt Nickel Separation By D.L. Jones 1, T.M. McCoy , It is applicable to dilute nickel leach if the ore can be concentrated by flotation, matte smelting is used instead of leaching. This combination of flotation and smelting effectively removes most of the deleterious impurities, and thus produces a nickelcobalt

Nickel leaching from lowgrade nickel matte using aqueous

Nickel leaching from lowgrade nickel matte using aqueous

Nov 14, 20190183;32;Nickel leaching from lowgrade nickel matte (LGNM) using aqueous ferric chloride solution was studied. The influence of factors such as leaching temperature and concentration of ferric chloride on the nickel leaching ratio was investigated. The results show that increasing leaching temperature and concentration of ferric chloride increases the

Facility Introduction  Niihama Nickel Refinery  About Us

Facility Introduction Niihama Nickel Refinery About Us

Crushing. Nickel matte is crushed into fine powder to make it more reactive. Chlorine Leaching. Crushed nickel matte and nickel / cobalt mixed sulfide are made to react with chlorine generated during the electrolysis process, and are made into chloride solution.

Copper Residue  Data from the European Copper Institute

Copper Residue Data from the European Copper Institute

Residue, nickel matte leaching is defined as Product obtained by leaching Nickel matte with chlorine or sulphuric acid. It is composed primarily of copper sulphide and sulphates. The Joint Registration dossier was successfully submitted to ECHA on 24th September 2010.

Nickel leaching from lowgrade nickel matte using aqueous

Nickel leaching from lowgrade nickel matte using aqueous

Nov 14, 20190183;32;Nickel leaching from lowgrade nickel matte (LGNM) using aqueous ferric chloride solution was studied. The influence of factors such as leaching temperature and concentration of ferric chloride on the nickel leaching ratio was investigated. The results show that increasing leaching temperature and concentration of ferric chloride increases the

OutOtec HydrOmetallurgical Nickel PlaNts aNd PrOcesses

OutOtec HydrOmetallurgical Nickel PlaNts aNd PrOcesses

Nickel matte and concentrate sulfate leaching Pyrometallurgically produced nickel matte is leached in atmospheric and pressure OKTOP174; reactors with the help of oxygen and sulfuric acid in process solution. The leaching circuit typically includes pulping, preleaching, pressure leaching in autoclaves, feeding, solidliquid

Residue, Nickel matte leaching  Substance Information  ECHA

Residue, Nickel matte leaching Substance Information ECHA

Substance information. Infocards are automatically generated based on industry data. What is an infocard? See a problem or have feedback? RSS. Residue, Nickel matte leaching. Regulatory process names 1 Trade names 2 . Print infocard Open Brief Profile. Substance identity Substance identity.