In nickel-copper sulfide ore processing, serpentine is a common gangue mineral encountered in complex sulfide ores and can easily cause entrainment during flotation.Large amounts of serpentine in the flotation concentrate reduces the effectiveness of smelting, often resulting in the imposition of smelter penalties on mineral processing companies.

Sulfide ores can be separated using froth flotation and hydrometallurgical or magnetic processes to create nickel matte and nickel oxide. These intermediate products, which usually contain 40-70% nickel, are then further processed, often using the Sherritt-Gordon Process.

Purpose: Isobutyl xanthate sodium is a collector, ability is applied to the collector of copper, lead, zinc, nickel sulphide ore collector ability for sulfide ores of precious metals is strong, also apply copper, lead ore flotation containing partial oxidation can also be used in hydrometallurgy precipitation agent for rubber vulcanization accelerator.

Nickel Sulphide Flotation From Serpentine 2014221the process for producing the nickel sulphide concentrate from ore includes crushing, grinding, flotation, and dewatering steps, typical of concentrator operations in sweden and finland a high proportion of the sulphide nickel is recovered in th...

In nickel sulfide ore processing, serpentine may report to flotation concentrate through attachment to the valuable minerals as “slime coatings” [3], [4] and [5]. Chat Now role of sodium hexametaphosphate in flotation of a nickel ore

Abstract—This study investigated the effect of oxygen and micro-cracking on the flotation of low grade nickel sulphide ore. The ore treated contained serpentine minerals which have a history of being difficult to process efficiently. The use of oxygen as a bubbling gas has been noted to be effective because it increases the pulp potential.

contaminate metallic mineral concentrates during traditional flotation of coarse sulphide particles. This could pose quite a complicated and challenging problem in the case of some types of low-grade and finely disseminated Cu-Ni ores bearing high serpentine contents. This is the case for the copper and nickel sulphides from the Yunnan Mine, China.

Nickel sulphide ore subjected to this investigation was taken from the Marmara district of Turkey, where widespread chromite mineralization can be observed. Some amounts of magnetite and chromite exist in the ore together with sulphide and oxide type nickel minerals. The ore sample contains 1.32% Ni, 10.79% SiO2, 78.39% Fe2O3, 1.3 g/t Ag, and 1.0 g/t Au.

The Bureau of Mines investigated the flotation responses of two copper nickel ore samples from the Duluth Complex with the objective of recovering bulk sulfide concentrates. One of the ores studied was taken from a test pit; the other was taken from a test shaft. The samples were quite similar except that the pit sample analyzed 0.35 pct Cu and 0.11 pct Ni and the shaft sample analyzed 0.69 ...

In nickel-copper sulfide ore processing, serpentine is a common gangue mineral encountered in complex sulfide ores and can easily cause entrainment during flotation [].Large amounts of serpentine in the flotation concentrate reduces the effectiveness …

micro-cracking on the flotation of low grade nickel sulphide ore. The ore treated contained serpentine minerals which have a history of being difficult to process efficiently. The use of oxygen as a bubbling gas has been noted to be effective because it increases the pulp

3 Nickel Sulphide Resources1 Nickel resources are typically classified as sulphides or laterites. Approximately 73% of the world’s nickel resources are estimated to be contained in laterites while 27% are as classified as sulphide. Currently, some 37% of the world’s nickel supply is derived from sulphide resources and almost all

Flotation of Nickel-Copper Sulphide Ore: Optimisation of. optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The parameters investigated include collector dosage, percentage solids, depressant dosage and pH. The effects of these parameters at three different levels on the recovery of Ni, Cu and ...

The effect of polyether on the separation of pentlandite from serpentine has been studied. In addition to flotation and sedimentation tests, electrophoresis and adsorption tests have been conducted.

This size fraction corresponds to a P 80 of about 140 µm which is appropriate for flotation tests. The nickel head grade of samples L, I and S (at the −300 µm size fraction) was found to be 1.2%, 1.1%, and 3.0%, respectively. Nickel was found, more or less, at the same grade in …

The valuable minerals in copper-nickel sulfide ore can easily be oxidized, leading to the reduction of their flotation recovery and a difficulty in separating them from gangue. In order to solve the problem, the reaction mechanism of the octanohydroxamic acid (OHA) on oxidized pyrrhotite was revealed through micro-flotation, adsorption tests, zeta potential measurements, and X-ray ...

1. Introduction. Serpentine is a magnesium-rich phyllosilicate mineral occurring in complex sulphide ores , .In nickel sulfide ore processing, serpentine may report to flotation concentrate through attachment to the valuable minerals as “slime coatings” , , .As a kind of magnesium silicate gangue mineral, large quantities of serpentine in flotation concentrates can cause problems during ...

In sulfide ore processing, serpentine may report to flotation concentrate through attachment to the valuable minerals as “slime coatings” , , . As a kind of magnesium silicate gangue mineral, large quantities of serpentine in flotation concentrates can cause problems during smelting, often resulting in the imposition of smelter penalties ...

within 3 min. During the flotation, the concentration was collected after cumulative times of 2, 4, 6, 8, and 10 min. To investigate how the flotation was affected by the pulp density of a single mineral and the mixture of sulfide and serpentine, sulfide and serpentine slurries (5 40 wt % of the total solid by

Apr 25, 2010· Froth Flotation of Ultramafic Nickel Ore - No Pre-treatment ... Because of decreasing sulphide ore sources and the cost of treating laterites, increasing attention is directed to the third source ...

Chlorite and serpentine are common magnesium-containing gangue minerals in copper sulfide flotation. In this study, sodium alginate, a natural hydrophilic polysaccharide, was introduced as a ...

Nickel processing - Nickel processing - Extraction and refining: The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are the use of higher-temperature refractories and the increased cooling required to accommodate the higher operating temperatures in nickel ...

Results of research into low-grade rebellious copper-nickel ore are presented. The mineralogical analysis reveals features of material composition, which affect processing properties of the ore—fine primary dissemination, essential serpentinization and substitution of insets by magnetite, as well as considerable fine difficult-to-dissociate epigenetic impregnation.

Keywords Flotation, nickel sulphide, serpentine, lizardite, chrysotile, carboxy methyl cellulose, slime dispersion, salt water. INTRODUCTION Western Mining Corporation mines several nickel sulphide deposits in the Eastern Goldfields region of Western Australia, north and south of Kalgoorlie.

May 01, 2020· In the flotation process of serpentine-containing copper-nickel sulfide ore, serpentine slime coatings significantly reduced the flotation performance…

A low-grade disseminated nickel sulphide serpentinite ore from W.A. had a relatively high permeability after drying. Various techniques indicated that the permeability resided within a fine network of fibrous vein- lets and especially within coarse cracks along which the sulphides lay. The ore minerals were therefore open to selective extraction by chemical leaching.

result in nickel losses into the tailings. This problem can be overcome by using depressants like car-boxymethylcellulose (CMC) and guargum deriva-tives, although their cost accounts for as much as 60% of the reagent cost incurred in the plant. Developments in Flotation Flotation of Nickel Sul\de Minerals

flotation circuit configurations were tested and results from the optimal circuit indicated that a nickel concentrate grading at 8.5% is achievable at a recovery of 78%, with substantial recoveries for the copper, cobalt and PGM co-products. The chromite concentrate, grading at 45%, was extracted from the flotation rougher tailings via a spiral

Serpentine (Mg 3 Si 2 O 5 (OH) 4 ) is one of the common MgO-containing silicates occurred in such ores, sulfide ores bearing nickel or copper, magnesite ores and brucite ores and so on, which ...

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract—This study investigated the effect of oxygen and micro-cracking on the flotation of low grade nickel sulphide ore. The ore treated contained serpentine minerals which have a history of being difficult to process efficiently. The use of oxygen as a bubbling gas has been noted to be effective because it ...

the flotation recovery of Ni, Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH, collector dosage, % solids and depressant dosage at different levels was investigated. Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals ...

Reducing the surface potential of serpentine and making it better dispersed in solution is the key factor to solving the problem of sulfide mineral flotation containing serpentine [11,12].

(2012). Effect of pulp rheology on flotation of nickel sulphide ore with fibrous gangue particles. Canadian Metallurgical Quarterly: Vol. 51, No. 4, pp. 368-375.

PDF | On Sep 24, 2012, Peng and others published Selective flotation of ultrafine nickel sulphide from serpentine in saline water by pluronic triblock copolymer | Find, read and cite all the ...

Froth Flotation (Sulphide & Oxide) ... Talc or other mineral such as serpentine of course makes a huge difference to the adopted strategy. Guar gum of course is well known talc depressant. ... I think that you need a number of strategies to successfully remove talc from nickel and copper sulphide concentrates, since 22-24% MgO is a lot of talc.