process recovery besi from laterite
process recovery besi from laterite
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process recovery besi from laterite

The Development of a Resin-in-pulp Process for the ...

The processing of laterite ores for the recovery of nickel and cobalt has increased as the reserves of exploitable sulphide ores have become depleted. The pressure acid leach process (PAL) has become the preferred option for the treatment of laterite ores. Difficulties associated with the poor settling characteristics of the pulp in the counter

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EP2102377B1 - Process for recovery of nickel and cobalt ...

EP2102377B1 EP07815755.9A EP07815755A EP2102377B1 EP 2102377 B1 EP2102377 B1 EP 2102377B1 EP 07815755 A EP07815755 A EP 07815755A EP 2102377 B1 EP2102377 B1 EP 2102377B1 Authority EP European Patent Office Prior art keywords nickel cobalt recovery resin exchange resin Prior art date 2006-11-10 Legal status (The legal status is an assumption and is not a

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Technical Cost Comparison of Laterite Treatment ...

a process model (numerically rigorous mass/energy balance) for each process and the appropriate laterite feed (limonite, saprolite, or 50:50 blend) considered in this exercise. Estimates of the capital and fixed operating costs were generated using commercially available cost

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Laterite Ore - an overview ScienceDirect Topics

B. Mishra, in Encyclopedia of Materials: Science and Technology, 2001 2.4 Hydrometallurgy of Laterite Ores. Two hydrometallurgical processes for the recovery of nickel from oxide ores have been commercialized: the reduction roast–ammonium carbonate leach process and the sulfuric acid pressure leach process for the treatment of low magnesia content laterite ores.

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CA2534035C - Process for recovery of nickel and cobalt ...

A process for recovering nickel and cobalt values from nickel- and cobalt- containing laterite ores as an enriched mixed nickel and cobalt sulphide intermediate and for producing nickel and cobalt metal from the nickel and cobalt sulphide intermediate. The laterite ore is leached as a slurry in a pressure acid leach containing an excess of aqueous sulphuric acid at high pressure and ...

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Development of a New Combined Process for Nickel and ...

The studies on the development of a new process for nickel and cobalt recovery from ferriferous laterite ores via a reducing roasting-sulfuric acid leaching are carried out. The conditions for the reducing roasting of the ores in the temperature range from 400 to 950°C and for the sulfuric acid leaching of the cinder (after cooling without air and passivation in water) at pH 1.4-3.0 and the ...

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Process for recovery of nickel and cobalt from laterite ...

1. A process for producing an enriched mixed nickel and cobalt sulphide intermediate from a laterite ore slurry containing nickel, cobalt, copper, chromium, zinc, iron and silicon, comprising leaching the laterite ore slurry in a pressure acid leach containing an excess of aqueous sulphuric acid at high pressure and temperature for a time sufficient to extract nickel and cobalt, partially ...

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The Development of a Resin-in-pulp Process for the ...

The processing of laterite ores for the recovery of nickel and cobalt has increased as the reserves of exploitable sulphide ores have become depleted. The pressure acid leach process (PAL) has become the preferred option for the treatment of laterite ores. Difficulties associated with the poor settling characteristics of the pulp in the counter

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The development of a resin-in-pulp process for the ...

Up to 10% of the soluble nickel and cobalt can report to the tailings of a pressure acid leach (PAL) process for the recovery of nickel from lateritic ores as a result of the difficulties associated with the poor settling characteristics of the autoclave discharge.

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THE KINETIC PROFILE OF IRON DISSOLUTION FROM

to process the laterite ore is the low temperature route of process. Such a process is quite simple, in which the laterite ore is dissolved in acid solution prior to the refining stage. Iron dissolution is a very important step; it determines the recovery of iron for the whole process (Solihin, Mubarok, et al. 2015).

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Enhancing the Nickel Recovery of Morowali Nickel Laterite ...

Apr 22, 2021  Morowali has a lot of laterite ore deposits wich is one of the mineral resources containing several kinds of metal elements, consist of Iron (Fe), Silicone (Si), Nickel (Ni), Chromium (Cr), Manganese (Mn), Calcium (Ca), Phosphate (P), Zinc (Zn), Vanadium (V), and Scandium (Sc). Nickel is a metal that have high economic value because it various benefits, such as the production of stainless ...

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Cobalt extraction - Wikipedia

The hydrometallurgical process for laterite ore can use sulfuric acid or ammonia leach solutions. Recovery from arsenide ores. Arsenic containing concentrates are roasted in a fluidized bed to remove 60% to 70% of the arsenic present as arsenic oxide (As 2 O 5).

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Minerals and Materials Processing Laboratory - Departemen ...

2020, Analysis the Effect of Charcoal Mass Variation to Ni Content, Sinter Strength and Yield on Sintering Process of Limonitic Laterite Nickel Ore, F Abdul, S Pintowantoro, A Maulidani, Key Engineering Materials 867, 25-31; 2020, DIRECT REDUCTION OF NICKEL LATERITE LIMONITIC ORE USING A COAL-DOLOMITE MIXTURE BED AND Na 2 SO 4 AS A SELECTIVE AGENT.

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Patents Assigned to Process Research Ortech, Inc. - Justia ...

Abstract: The invention provides a process for the leaching of a laterite ore or concentrate for the recovery of value metals, at least one value metal being nickel. The laterite ore or concentrate is subjected to a leaching step with a lixiviant comprising hydrochloric acid to leach nickel from the laterite

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PENGOLAHAN NIKEL LATERIT SECARA PIROMETALURGI: KINI DAN ...

Low-Iron Laterite Ores: Process Descriptions, CIM Bull, Vol. 96, No. 1072, June-July, 2003 pp127-138 T. Utigard and Bergman, Gaseous Reduction of Laterite Ores, Metallurgical and Materials Transactions Volume 23 B. April 1992— 271

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Pelindian Bijih Nikel Laterit Kadar Rendah Menggunakan ...

duration, which has >70% of Ni recovery. Keywords: leaching, hidrometalurgi, hydrochloric acid, nickel laterites. PENDAHULUAN termasuk teknologi asam sulfat, klorida dan . Nikel merupakan logam strategis yang sering digunakan untuk produksi baja tahan karat dan campuran logam tanpa besi dengan kekuatan impak yang tinggi, ketahanan terhadap korosi

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Review Pengaruh Reduktor Dalam Reduksi Selektif Bijih ...

Seiring dengan menipisnya cadangan bijih sulfida, pengolahan bijih laterit kian digencarkan demi kebutuhan nikel tetap dapat dipenuhi. Metode reduksi selektif menjadi salah satu pilihan yang patut dipertimbangkan untuk mengolah laterit karena dinilai ramah lingkungan serta konsumsi energi yang lebih rendah. Selama ini pengembangan metode reduksi selektif terkonsentrasi pada agen selektivitas ...

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US20060228279A1 - Process for recovery of nickel and ...

A process for recovering nickel and cobalt values from nickel- and cobalt-containing laterite ores as an enriched mixed nickel and cobalt sulphide intermediate and for producing nickel and cobalt metal from the nickel and cobalt sulphide intermediate. The laterite ore is leached as a slurry in a pressure acid leach containing an excess of aqueous sulphuric acid at high pressure and temperature ...

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RECOVERY OF NICKEL IN LEACHING OF LATERITE ORES ...

The invention provides a process for the leaching of a laterite ore or concentrate for the recovery of value metals, at least one value metal being nickel. The laterite ore or concentrate is subjected to a leaching step with a lixiviant comprising hydrochloric acid to leach nickel from the laterite ore. Nickel is extracted with an oxime at a ...

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Nickel recovery from a high ferrous content laterite ore

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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The development of a resin-in-pulp process for the ...

The processing of laterite ores for the recovery of nickel and cobalt has increased as the reserves of exploitable sulphide ores have become depleted. The pressure acid leach process (PAL) has become the preferred option for the treatment of laterite ores. Difficulties associated with the poor settling characteristics of the pulp in the counter current decantation (CCD) circuit after pressure ...

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Response surface design for nickel recovery from laterite ...

May 01, 2010  Response surface design for nickel recovery from laterite by sulfation-roasting-leaching process LI Dong( " ) 1 , PARK Kyung-ho( nK$) 1, 2 , WU Zhan( )) 1 , GUO Xue-yi(F :, ) 1 1. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China; 2.

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Hydrometallurgical process for the separation and recovery ...

Hydrometallurgical process for the separation and recovery of nickel from sulphate heap leach liquor of nickeliferrous laterite ores S. Agatzini-Leonardou, P.E. Tsakiridis*, P. Oustadakis, T. Karidakis, A. Katsiapi Department of Mining and Metallurgical Engineering, Laboratory of Metallurgy, National Technical University of Athens, 9, Iroon Polytechniou Street, 157 80 Zografou, Athens, Greece

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Processing of Nickel Laterite Ores on the Rise

The SX-EW Method. SX-EW, or the Solvent Extraction – Electrowinning approach to lateritic ore beneficiation, is a hydrometallurgical method that relies on leaching, extractants, and electrowinning to produce nickel from ore. This process is often referred to as Leach Solvent Extraction – Electrowinning for its employment of a leaching step.

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Copper recovery from nickel laterite with high‐iron ...

Oct 13, 2019  The Canadian Journal of Chemical Engineering, published by Wiley on behalf of The Canadian Society for Chemical Engineering, is the forum for publication of high quality original research articles, new theoretical interpretation or experimental findings and critical reviews in the science or industrial practice of chemical and biochemical processes.

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Kajian Mengenai Peningkatan Kadar Fe Total pada Bijih Besi ...

Kajian Mengenai Peningkatan Kadar Fe Total pada 545 Teknik Pertambangan, Gelombang 2, Tahun Akademik 2016-2017 trommel screen 2 sebesar 5,8 Rpm; trommel screen 3 sebesar 6,34 Rpm dan magnetic separator sebesar 14,1 Rpm. Berdasarkan data pencucian raw material pada kondisi A sebanyak 4302 ton diperoleh konsentrat bijih besi ukuran -20mm sebesar 189 ton (6,03%) dengan

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PENINGKATAN KADAR NIKEL DALAM LATERIT ENIS LIMONIT

coal addition and 20% of Na2SO4 addition with recovery of nickel and iron in the consentrate 64,77% and 34,66% respectively. Keywords: Nickel laterite, Limonite, Reduction roasting, Magnetic separator 1. PENDAHULUAN Pada saat ini ada 2 jenis bijih nikel yang banyak digunakan sebagai bahan baku untuk membuat logam nikel yaitu bijih jenis sulfida

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[PDF] A green process for recovering nickel from ...

Abstract A novel process was proposed for recovering nickel from nickeliferous laterite ores. First of all, silicon and magnesium were removed from lateritic ore by high concentration sodium hydroxide leaching and carbonation respectively, so as to enrich nickel. Then the method of ammonia carbonate leaching was adopted to recover nickel from the carbonized slag, and the remaining residue was ...

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JURNAL REKAYASA PROSES Uji Validitas Model Shrinking Core ...

in the leaching of nickel laterites process evaluated by shrinking core reaction model. The process was ... The experiment results showed that the percentage recovery of nickel increases with higher concentration of citric acid. In addition, the validity test of shrinking core model indicates a ... seperti besi (Fe). Proses hidrometalurgi perlu ...

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The development of a resin-in-pulp process for the ...

Sep 29, 2003  The PAL process involves the leaching of the ore with sulfuric acid at temperatures in the range 250–270 °C followed by a number of stages of countercurrent decantation (CCD) in which the pregnant liquor is separated from the unleached residue and passed as overflow to neutralisation and metal recovery while the underflow (typically 35% ...

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REDUKSI LANGSUNG BIJIH NIKEL LATERIT LIMONITIK

11,49%, as well as the recovery of Ni highest ratio 2,09 with result 99,10%. Meanwhile, increased grades of Fe highest of 13,29% from the ratio 1,48 and recovery Fe highest gained with ratio 2,09 by 14,24%. Keywords : Nickel Laterite Limonitic, Direct Reduction, Ratio of Coal/Dolomite, Grades of CO/CO 2

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