flotation nickel bulk

It should be added that segregation of laterite ores prior the flotation process has shown some improvement in upgrading nickel. The segregation process relies on the addition of calcium chloride or sodium chloride and carbon allowing the formation of nickel and iron chlorides at temperatures between 900 and 1150 °C. Iwasaki et al., (1961) and …

Download CSV Display Table. Aaltonen et al. ( 1980) studied the dissolution of a bulk Ni-Cu concentrate grading 5.4% Ni and 1.5% Cu in sulfuric acid and …

Potassium amyl xanthate (PAX) and sodium isobutyl xanthate (SIBX) are traditional thiol collectors used in the bulk and selective froth flotation of nickel and copper sulfide mineral ores. Individually, they are not selective enough for economical low-grade nickel froth flotation. Therefore, more selective collectors or co-collectors are required.

Request PDF | Decreasing Easily Slimed Gangue Minerals Effect on Copper-Nickel Bulk Flotation by Combinatorial Depressants | This article research a low grade ore in Jinping, it contain 0.634% ...

The bulk copper–lead flotation with depression of zinc followed by copper–lead separation and re-flotation of zinc is the most common practice in the treatment of copper–lead–zinc ores. About 90% of operating plants use this method. ... The reagent practice in the flotation of nickel and copper–nickel ores depends on three basic ...

The flotation stage is divided into two main, parts; bulk flotation of sulphide minerals and the separation of the nickel and copper concentrates from the bulk concentrate. The bulk flotation process is operated at a low pH value. Chemicals used in the process are KEX as a collector, Finnish raw pine oil as a frother, and sulphuric acid …

Since the bulk of the flotoactive sulphides is extracted as the result of between-bath flotation, during basic flotation pyrrhotite and talc are mostly extracted, 78% and 83% of each, respectively. ... The FTIR (DRIFT) and FT-Raman studies of the products of copper–nickel ore flotation have recorded the presence of goethite, iron sulphates ...

optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The parameters investigated include collector dosage, percentage solids, …

hydrometallurgical processing of nickel sulfide flotation concentrates has several distinct advantages over pyro-metallurgy. In the first part of this review, a survey of ... Aaltonen et al. (1980) studied the dissolution of a bulk Ni- Cu concentrate grading 5.4% Ni and 1.5% Cu in sulfuric acid and ammoniacal solutions at ambient pressure, the ...

In this paper, the flotation behaviour of nickel-copper ores processed in the Sudbury area is discusse~ with emphasis on the effect of oxidation on individual minerals, pnmarily pyrrhOlite. In general, moderate oxidation of a freshly ground ore promotes the flotability of all principal sulphides in the ore leading to a bulk flotation concentrate.

The strategy uses a flotation stage superstructure that represents alternative flotation circuit configurations. This representation is similar to that used by Cisternas et al. (2014), but several products are allowed in the circuit.In addition, as is discussed later, each flotation stage can operate with different objectives, e.g., to concentrate one mineral or …

The invention discloses a flotation method of copper-nickel sulfide ore, which comprises the following steps: a. grinding and pulp mixing copper-nickel sulfide ore to obtain ore pulp; b. adding a sulfide mineral modifier into the ore pulp in the step a, wherein the sulfide mineral modifier comprises 1-10 parts by weight of soluble copper salt, 0-200 parts by …

At our El Soldado copper mine in Chile, our new demonstration plant uses CPR technology in a novel way using the Hydrofloat™, which combines flotation with gravity concentration, allowing the flotation process to be changed to treat larger-diameter material and permit coarser grinding.

The sulphides in the underflow could then be processed by bulk flotation at 25–30% solids in the hypersaline water 1 at the site to give an acceptable nickel recovery with the required level of MgO rejection (> 99.5%). Concentrate typically assayed about 20% Ni and had an Fe : MgO of about 3.

Most of the world's nickel is extracted from the mineral pentlandite, (Ni, Fe)9S8, which frequently oc-curs in ores containing predominantly pyrrhotite and various non-sulRdes, some of which contain magne-sium (Table 1). The nickel content in such sul Rde ores is generally low (0.2}3%) and varies from place to place in the same deposit.

addition on flotation performance of a nickel sulphide ore. The objectives of the study were to: 1. develop an understanding of the effects of collector and depressant dosage, and its interactive effects, on flotation performance and 2. determine the effect of stage dosing collector and depressant on flotation

High Intensity Conditioning improved pentlandite flotation from a nickel ore. Specifically, High Intensity Conditioning increased the flotation rate of pentlandite contained in the 8 to 75 μm particle size range. ... In the past dozens of years, a mass of reports regarding the application of bulk nanobubbles in flotation has been emerging …

Bulk flotation is a process where two or more valuable minerals with similar floatability are floated together as a bulk concentrate in the flotation system. The bulk flotation includes partial bulk flotation and full bulk flotation. The bulk concentrate can be separated by flotation or other methods to obtain a single concentrate as needed.

Bulk sulphide grades of between 15 and 20 wt.% nickel were achievable, with a corresponding nickel sulphidation degree of about 80%. Decreasing the sulphur …

Nickel ore dispersion before flotation using different reagents was investigated on a bench scale to improve metallurgical recovery and selectivity. The nickel ore had a content of 0.8 pct nickel and 14.5 pct MgO. A positive linear correlation between MgO and Ni was found. Carboxy methyl cellulose, both pure and combined with …

Abstract. The challenges in processing nickel laterite ores using flotation process were comprehensively reviewed. Literature shows that flotation has not been …

Bulk sulfide flotation is generally carried out on Western Australian nickel ores which tend to be low in copper and contain substantial concentrations of …

This report describes the results obtained from separating mattes smelted from Duluth Gabbro bulk flotation concentrates into copper-rich and nickel-rich fractions by mineral dressing techniques. In conventional processing of mixed sulfide ores of copper and nickel, the separation of copper from nickel begins in the ore beneficiation plant.

GOLD FLOTATION. The flotation process, which is today so extensively used for the concentration of base-metal sulphide ores and is finding increased use in many other fields. In 1932 flotation plants began to be installed for the treatment of gold and silver ores as a substitute for or in conjunction with cyanidation.

Samples were prepared at two different levels of sulphur addition in order to assess the impact of bulk nickel sulphide grade on the flotation performance. Prior to flotation, each sample was mixed with water to achieve a pulp density of 66 wt.% solids and ground in a 0.5L Netzsch ISA mill M-V with 1200 g of ceramic grinding media at 1000 rpm ...

Nickel sulphide ores containing pentlandite, pyrrhotite and talc have traditionally been treated by bulk sulphide flotation, an approach which seeks to …

The mining grade of nickel sulfide ore is generally 0.3–2%. Copper-nickel bulk concentrate containing 4–8% nickel is usually selected by flotation. Some factories separate the bulk concentrate into nickel concentrate (containing about 10% nickel), copper concentrate, and pyrrhotite concentrate.

A series of batch flotation tests was performed on chalcopyrite-quartzite, on pyrrhotite-quartzite and on chahcopyrite-pyrrhotite-quartzite mixtures. ... A.S., 1985, "Use of ozone in the differential flotation of copper-nickel bulk sulfide concentrates," Minerals & Metallurgical Processing, Vol. 2, pp. 68–72. Google Scholar Li, X ., and ...

The effect of the depressant galactomannan (KGM) on the depression of talc and the flotation of a nickel–copper sulfide ore have been investigated through microflotation, batch flotation and industrial flotation tests, zeta potential and infrared spectrum measurements. ... the bench-scale locked cycle tests from Ni/Cu bulk …

Bulk sulfide flotation is generally carried out on Western Australian nickel ores which tend to be low in copper and contain substantial concentrations of …