Concentration and Separation of Scandium from Ni Laterite ... - MDPI
Dec 12, 2017 ... the conventional hydrometallurgical production of the MHP (mixed nickel-cobalt hydroxide) product. 2. Previous Studies and State of the Art. In previous studies, a lateritic ore with a Sc grade of 106 g/t, was digested under high-pressure sulphuric acid leaching and it was reported that 80.6% of scandium...Read More
Leaching of a Turkish Lateritic Nickel Ore in Nitric Acid Solution ...
In: Drebenstedt C., Singhal R. (eds) Mine Planning and Equipment Selection. ... The leaching conditions of lateritic nickel ore in a nitric acid medium were investigated by studying the effects of its leaching parameters, such as stirring speed, temperature, nitric acid ... Lateritic nickel ore leaching nitric acid Karaçam Turkey.Read More
Atmospheric leach process for the recovery of nickel and ... - Google
A process is provided for leaching nickeliferous laterite ores by hydrometallurgical methods at temperatures below the boiling point of the pulp and at atmospheric ... atmospheric leaching of limonite ore was hydrolyzed in the second part of the test, whereby the acid produced from hydrolysis was used to dissolve nickel and...Read More
Kinetics of high pressure leaching of nickel lateritic ores
As a result of the high nickel production costs associated with traditional pyrometallurgical techniques and the depletion of high-grade sulphide ores, renewed interest has been developed conceming the production of the nickel and cobalt by high pressure acid leaching (PAL) of nickel laterites. More than one third of the...Read More
Kinetics of Leaching of the Serbian Nickel Lateritic Ore
pyrometallurgical methods producing ferro-nickel, or by leaching with ammonia or with the use of sulphuric acid under high pressure conditions. It is known that 40 % of the world nickel production originates from, and 54 % of the total reserves are found in laterites. Leaching from the laterite ore at atmospheric pressure is...Read More
Nickel extraction from low grade laterite by agitation leaching at ...
This study revealed that factorial experimental design can be implemented to identify effective parameters on the agitation leaching process of nickel laterite. ... from which pentlandite (Ni,Fe)9S8 is the main mineral, comprise only about 27% world nickel reserves and has covered 60% of global production up to now.Read More
Lateritic nickel ore deposits - Wikipedia
Heap leach treatment of nickel laterites is primarily applicable to clay-poor oxide-rich ore types where clay contents are low enough to allow percolation of acid through the heap. Generally, this route of production is much cheaper - up to half the cost of production - due to the lack of...Read More
Processing of Nickel Laterite Ores on the Rise
Nickel is most widely used in the production of stainless steel. Traditionally, nickel has been processed from sulfide ores in an approach similar to copper processing, in which the ore is upgraded to concentrates and then smelted. As sulfide ore resources dwindle, however, processing of lateritic nickel ores is becoming of...Read More
Precipitation of Nickel Hydroxide from Simulated ... - ResearchGate
International Symposium on Earth Science and Technology, CINEST 2012. Precipitation of Nickel Hydroxide from Simulated and. Atmospheric-Leach Solution of Nickel Laterite Ore. M.Z. Mubarok and. J. Lieberto,a*. Department of Metallurgical Engineering, Faculty of Mining and Petroleum Engineering, Institute Technology...Read More
Ore mineralogy of nickel laterites: controls on processing ...
Sep 27, 2011 ... If tonnes-of-ore-treated is a measure of success, then the most successful heap leaching operations have been those processing copper oxides and secondary copper sulfides. Copper heap leaching is a well-developed technology going back 40 years and currently producing about 20% of the world's...Read More
Leaching behavior of metals from limonitic laterite ore ... - CiteSeerX
resource. Key words: high pressure acid leaching; limonitic laterite; leaching behavior; nickel. 1 Introduction. Nickel is a strategic metal with high impact strength and ductility properties and mainly used in the fields of stainless steel and nonferrous alloy production as well as electroplating and chemical industry, etc[1−2].Read More
energy consumption and economic trends in the production of nickel ...
It has been 21 years since the original paper (1) was presented at the AIME Laterite. Symposium in New Orleans. This is an update of that paper. The 1979 paper concluded that the relatively low energy consumption and high nickel and cobalt recovery favoured the adoption of the high pressure acid leach (HPAL) process...Read More
the application of the cesl nickel process to laterites - Teck
Process to laterites, limiting the discussion to the treatment of the impure nickel/cobalt solution after the pressure acid leach (PAL). 2 Background. Cominco Engineering Services Ltd. (CESL) is a wholly – owned subsidiary of Cominco. Ltd., an integrated mining and metallurgical company producing zinc, copper, and lead,.Read More
Unlocking millions of tonnes of nickel - CSIRO
Dec 6, 2016 ... The challenge. Most nickel laterites are uneconomical to mine. Around 70 per cent of the world's nickel reserves are found in the form of laterites, which are soils rich in mineral ores. Many of these reserves remain untapped due to the complexities of extraction from laterites. Australia has abundant nickel...Read More
Dissolution kinetics of a lateritic nickel ore in sulphuric acid medium
The production of nickel from lateritic ores includes pyro-metallurgical and hydro-metallurgical processes . Lateritic type ores are processed by ferronickel, smelting, matte smelting, CXinhai process and pressure acid leaching . Several authors [3,7-15] have studied hydro-metallurgical methods of processing of lateritic...Read More
The nickel laterite challenge - Australian Mining
Jun 21, 2012 ... In the recent past the nickel laterite processing industry has had a chequered history, with challenges associated with continuing profitable production on ... mild HL and extreme HPAL options for leaching nickel and cobalt into solution with reduced reagent consumption and subsequent neutralisation costs.Read More
dissolution kinetics of nickel from gördes (mani̇sa-turkey)
DISSOLUTION KINETICS OF NICKEL FROM GÖRDES (MANİSA-TURKEY) LATERITIC ORE BY. SULPHURIC ACID LEACHING UNDER EFFECT OF SODIUM FLUORIDE. 1Tevfik AĞAÇAYAK, 2Ali ARAS. 1,2Selcuk University, Department of Mining Engineering, Campus, Selcuklu, Konya, TURKEY. firstname.lastname@example.org,...Read More
First Quantum Minerals Ltd. - Our Business - Operating Mines ...
Operations at Ravensthorpe involve open pit mining and beneficiation of nickel laterite ore, pressure acid leaching, atmospheric leaching, counter current decantation, precipitation and filtration to produce a mixed hydroxide precipitate product, containing approximately 40% nickel and 1.4% cobalt on a dry basis. Sulphuric...Read More
Nickel Laterites in SE Asia
May 27, 2013 ... Global distribution of lateritic nickel resources. • Exploration and resource ... Leaching of silica in humid climates in well- drained locations. 4. .... FeNi suited to S/S production. • No by-product credits. • Ore composition (Mg, Si). • High Ni grades (upgrading possible). Nickel Laterites Processing Issues...Read More
Salinity in Nickel Laterite Processing - SGS
In the last 5-7 years, the world nickel producers have been focused on furthering nickel laterite processing utilising high-pressure acid leaching. (HPAL) technology. The process water used or recommended for this technology has often been saline, ranging from moderately low to very high concentrations of total dissolved...Read More
Selective leaching of nickel from prereduced limonitic laterite under ...
Keywords: Nickel; Selective Leaching; Reductive Roasting; Goethite; Hematite. * Corresponding author: email@example.com. Journal of Mining and Metallurgy,. Section B: Metallurgy. DOI:10.2298/JMMB151102023C. 1. Introduction. The first plant for high pressure acid leaching. (HPAL) of laterite ores was built in Moa Bay,...Read More
Nickel Sulfide Versus Laterite : The Hard ... - User Web Pages
are easier to process, through conventional mining, smelting and refining, compared to laterite ores which require intensive hydrometallurgical processing (such as high pressure acid leaching or HPAL). This means that laterite ores typically require substantially more energy and chemicals to produce than sulfide nickel.Read More
high pressure sulphuric acid leaching of lateritic nickel ore
Oct 31, 2016 ... Keywords: lateritic nickel ore, pressure leaching, goethite, hematite, basic ferric sulphate. Introduction. The lateritic deposits constitute the largest reserves (72%) of the world's nickel resources, but only 42% of the primary nickel production comes from these lateritic ores and the remainder is supplied from...Read More
Designing Heap Leaching for Nickel Production that ...
Oct 2, 2017 ... Abstract—Some of laterite mineral from Southeast Sulawesi,. Indonesia, has low grade nickel contain. This research was done in 3 steps to analyze the possibility of extracting nickel from low grade laterite for industry. In the first step of this research heap leaching method is used in laboratory scale for...Read More
Mindoro Resources Ltd - Agata Nickel Development Options - Mon ...
An Emergent Nickel Laterite Processing Country Mindoro's model for enhanced value, on-site processing is to some extent based on the highly successful Coral Bay, Palawan Island, HPAL operation of Sumitomo and Nickel Asia. Initially a DSO producer of saprolite ore, in 2005 the joint venture commenced an HPAL...Read More
Leaching Behaviour of a Low-grade South African Nickel Laterite
temperature, leaching time and particle size on extraction of nickel and cobalt. Analyses results indicated the ore to be a saprolitic nickel laterite belonging to the serpentine group of minerals. Sulphuric acid was found to be able to extract nickel from the ore. Increased acid concentration and temperature only produced low...Read More
Agglomeration and column leaching behaviour of nickel laterite ores ...
Agglomeration and column leaching behaviour of nickel laterite ores: effect of ore mineralogy and particle size .... source of Ni (and Cobalt - Co) production accounting for 60% of total production (Gleeson et al., 2003; Dalvi et al., ..... A summary of the column leaching results on agglomerates produced from different feed.Read More
Recovery of Nickel and Cobalt from Laterite Tailings by Reductive ...
Apr 29, 2015 ... Selective leaching of valuable metals from laterite nickel ore with ammonium chloride-hydrochloric acid solution. Jinhui Li , Deshun Li , Zhifeng Xu , Chunfa Liao , Ye Liu , Bo Zhong. Journal of Cleaner Production 2018 179, 24-30...Read More
Emission Estimation Techniques Manual for Nickel Concentrating ...
This handbook covers the concentrating, smelting and refining of nickel commencing from the delivery of ore to the processing facilities for crushing and milling, through smelting and to the production of +99% pure nickel at the refinery, for the nickel sulfide and nickel/cobalt laterite processes. It does not include extraction of...Read More
Nickel Laterite Hydromet - International Nickel Study Group
Apr 27, 2010 ... Malachite Process Consulting. INSG April 2010. Agenda. Laterite hydromet options. HPAL. Heap leaching. Capital and operating costs. Economics. Technology trends ... Never achieved design production of 9.2 ktpa. • Beneficiation circuit .... Nickel laterite heap leaching R&D commenced in early 1990's at...Read More
High Pressure Acid Leach - Caldera Engineering
High Pressure Acid Leach (HPAL) is a process used to extract nickel and cobalt from laterite ore bodies. The HPAL process ... HPAL has been used since 1961 when it was first put into commercial production at Moa Bay, Cuba. ... The slurry takes approximately 60 minutes to complete the leaching process in the autoclave.Read More
New reagents selected for nickel extraction - Phys.org
Apr 7, 2015 ... More nickel can be produced more efficiently from Australia's low-grade laterite ores if the metal is directly extracted after leaching with nitric acid, research suggests.Read More
Nickel Mining Like its 1864 - Ahead of The Herd
However a laterite limonite zone is higher in iron and lower in nickel, magnesium and silica, which means using High Pressure Acid Leaching (HPAL) technology. HPAL (which has ... The majority of today's nickel is produced from sulphide deposits because they are easier and cheaper to mine and process than lateritic ore.Read More
dissolution kinetics of nickel laterite ore using different ... - SciELO
kinetics of laterite ore with secondary metabolic acids in the second stage of a two-tank leaching process. MATERIALS AND METHODS. Ore Material Source. The nickel ore used for the study was overburden of a chromite mine and was obtained from the major deposits of Sukinda mines, Orissa, India. The sample.Read More
MEI Blog: Challenges in processing nickel laterite ores by flotation
Jun 6, 2016 ... However, while about 70% of the nickel resources are contained in laterites, only 40% of the world's nickel production comes from these ores. .... which sits atop of the leaching profile, and higher in the saprolite phase at the bottom, however nickel content is fairly uniform within the different mineral phases.Read More
Nickel - GME Resources
Key attributes of the NiWest Nickel laterite project. Metallurgical column leach test work completed on the major resource areas has recorded consistently 70 to 80 % Nickel recovery in 120 days; BEST undeveloped Laterite Ni project in Australia; Potential to become top-10 global nickel producer; Pre-Feasibility completed...Read More
Application of Molten Salt Hydrates to Laterite Nickel Ore Leaching ...
Proposed Saprolite Leach Process. Application of Molten Salt Hydrates to Laterite Nickel Ore Leaching and HCl Recovery. Jan de Bakker*,1, Kevin McLean†,2, Vladimiros Papangelakis2, and Boyd Davis1. 1Department of Mining Engineering, Queen's University, Goodwin Hall, Kingston, ON, Canada K7L 3N6.Read More
Anaconda Nickel Ltd Nickel and Cobalt Mine - Mining Technology
Development of a new mining area – Murrin Murrin South – began in 2004. PROCESSING. Murrin Murrin is a world-class hydrometallurgical project, using sulphuric acid in high-temperature, high-pressure autoclave vessels to aggressively leach nickel and cobalt from low-grade lateritic (oxidised) ores. Hydrometallurgical...Read More
UNDER ATMOSPHERIC PRESSURE
Because of the large presence of nickel laterite in South-East Europe and a small number of plants for hydrometallurgical production of nickel a need for studies of leaching under atmospheric and high pressure exists. In this paper, we discuss the kinetics of the sulphuric acid leaching process for the Serbian nickel laterite...Read More
bacterial leaching of nickel literites using ... - WIReDSpace
Biohydrometallurgy, an interdisciplinary field involving geomicrobiology, microbial ecology, microbial biochemistry, and hydrometallurgy, is a promising novel technology for recovering valuable minerals from traditionally difficult-to-process ores. In this study, the possibility to treat nickel laterites biohydrometallurgically.Read More