In cases such as the Sudbury deposit where the copper content of the ore is almost equal to that of nickel the concentrate is subjected to a second selective flotation whereby the copper is floated to produce a low-nickel copper concentrate and a separate nickel concentrate each to be processed in its respective smelting line

We study the effect of one of the main parameters of flotation ore-dressing specifically alkalinity of the pulp on the selective flotation of sulfide and oxide minerals of copper from the Udokan deposition ores Chita oblast It is found that the optimum values are pH = 9 for sulfide minerals of copper and pH = 10 for the oxide ones

Nickel is most frequently found in sulfidic ores and nearly always mixed with copper cobalt zinc iron and other metals While solvent extraction SX can be used to recover nickel novel selective ion exchange IX resins are making it possible to isolate and purify nickel at lower cost and in more environmentally sustainable ways

Acids e g Cyanex 272 as this extractant is very selective for cobalt over nickel and demonstrates many admirable qualities As noted above however this extractant is not so selective for cobalt compared to many common impurities found in leach liquors such as copper zinc iron II cadmium calcium magnesium and manganese

Bulk flotation An efficient procedure for nickel recovery is to combine copper sulphate to activate pentlandite with guar gum to depress talc This is the method which has been used for the flotation of nickel ores in industry and which we have termed the standard bulk float A selection of results for this ore is given in Table 3

A selective or sequential flotation flowsheet of two or more products By utilizing selective flotation two or more minerals in an ore are separated into individual high grade products ORE TREATED The most common of ores treated in this manner are lead zinc copper-zinc-iron copper-nickel but application may be made to other two or three mineral separations

Aug 11 1981· A process for beneficiating a finely ground ore containing sulfide minerals of copper and nickel by selective flotation to produce a copper concentrate and a copper-nickel concentrate comprises pulping the ore with water to form a slurry conditioning the slurry with an aqueous solution of SO 2 H 2 SO 3 equivalent to from about 2 to about 4 5 pounds of SO 2 per ton of dry ore for a time

Handbook of Flotation Reagents Chemistry Theory and Practice Flotation of Sulfide Ores by Srdjan M Bulatovic • ISBN 0444530290 • Publisher Elsevier Science Technology Books • Pub Date April 2007

Selective flotation of ultrafine nickel sulphide from serpentine in saline water by pluronic triblock copolymer The activation of copper sulphate on the flotation of nickel sulphides

1 Froth Flotation Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral water slurry The particles with attached air …

Advanced flotation process control system at a selective copper nickel flotation Advanced flotation process control system at a base metal concentrator Mvuyiso Gqwaru1 nickel and copper at bulk flotation and separation circuits respectively Since selective flotation is a highly pH dependent process advanced pH controllers were commissioned Flotation experiment research on a

During the reorganization of a beneficiation plant with water recycling a close correlation between the selectivity of flotation of complex copper-nickel sulfide ores and the sulfoxide ion concentration in the recycled water and pulp was found This necessitated the control of the ionic composition of the pulp

title = chlorination of copper and nickel sulfide concentrates abstract = A chlorination process for treating metal sulfide flotation concentrates is described The process involves low temperature chlorination combined with sulfur chloride conversion and selective oxidation to produce nonferrous metal chlorides elemental sulfur and

May 02 1995· U S Pat No 5 074 993 to Kerr et al issued on Dec 24 1991 describes the use of water-soluble polyamines as a pyrrhotite depressant for the selective flotation of nickel-copper minerals The success of the process is demonstrated by various examples using feed samples in which Po Pn ratio is relatively low with one exception at 15

The precipitate flotation of copper nickel cobalt manganese zinc and Other liquid ion exchangers selective for copper have been introduced by other companies 4 5 Commercial LIX63 is a light yellow liquid containing up to 70 inert solvent

Copper extraction refers to the methods used to obtaining copper from its ores The conversion of copper consists of a series of physical and electrochemical processes Methods have evolved and vary with country depending on the ore source local environmental regulations and other factors

All the flotation test-work was done using the Denver laboratory machine with a 1 5l stainless steel flotation cell The required mass of nickel-copper sulphide ore material ground to 70 passing 75 µm was weighed and placed in the flotation cell This was followed by the addition of distilled water to about

A new reagent for the application in the preparation of mineral raw materials mainly sulphide and oxyde mono-and polymetallic ores of non-ferrous metals which are used as a corrosion inhibitor of the equipment and grinding bodies and as a selective collector of the wanted metal is described The new reagent is a composition of water mercaptobenzothiazole salts and its derivatives in the

Two different flotation separation strategies are used Differential flotation sequence A differential copper-cobalt flotation separation which begins with selective copper flotation by raising the slurry pH to 10 with lime and using a dithiophosphate copper collector

Apr 06 2007· Sulphur dioxide has been successfully used as a depressant for galena and sphalerite in selective copper flotation of complex fine-grained sulphide ores Dosage of the gas demands care and that is why it is not used as often as it could be The sulphur dioxide gas has been replaced by a solution of sulphur dioxide forming salt with improved selectivity

This product is a highly versatile collector that can be used in many flotation processes It supports selective copper flotation in copper-nickel sequential flotation as a bulk collector for copper-nickel flotation or to enhance copper flotation in the copper-nickel separation stage

A process for beneficiating a finely ground ore containing sulfide minerals of copper and nickel by selective flotation to produce a copper concentrate and a copper-nickel concentrate comprises pulping the ore with water to form a slurry conditioning the slurry with an aqueous solution of SO 2 H 2 SO 3 equivalent to from about 2 to about 4 5 pounds of SO 2 per ton of dry ore for a time

Development of a selective and sensitive flotation … A simple selective and rapid flotation method for the separation preconcentration of trace amounts of cobalt nickel iron and copper ions using phenyl 2-pyridyl ketone oxime PPKO has been developed prior to their …

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic This is used in mineral processing paper recycling and waste-water treatment industries Historically this was first used in the mining industry where it was one of the great enabling technologies of the 20th century

A process for beneficiating a finely ground ore containing sulfide minerals of copper and nickel by selective flotation to produce a copper concentrate and a copper-nickel concentrate comprises pulping the ore with water to form a slurry conditioning the slurry with an aqueous solution of SO sub 2 H sub 2 SO sub 3 equivalent to from about 2 to about 4 5 pounds of SO sub 2 per ton of dry ore

The selective flotation of pentlandite from a nickel ore The selective flotat Nickel sulphide ores containing pentlandite pyrrhotite and talc have traditionally been treated by bulk sulphide flotation an approach copper and nickel flotation equipment Production Line Separation of the bulk concentrate copper and nickel minerals is

200tons Oxide sulfide Copper Mining Flotation Machine Flotation Flotation is a selective process and can be used to achieve specific separations from complex ores such as lead-zinc copper zinc etc Initially developed to Chat Online

A simple selective and rapid flotation method for the separation preconcentration of trace amounts of cobalt nickel iron and copper ions using phenyl 2-pyridyl ketone oxime PPKO has been developed prior to their flame atomic absorption spectrometric determinations

Two different flotation separation strategies are used Differential flotation sequence A differential copper-cobalt flotation separation which begins with selective copper flotation by raising the slurry pH to 10 with lime and using a dithiophosphate copper collector

contain very low grades of nickel 0 6 and copper 0 04}0 4 The easily Soatable non-sulRde min- selective depression of pyrrhotite at Canadian plants was found to be due to the process water containing III NICKEL AND COBALT ORES FLOTATION 3493 Figure 5 Flotation selectivity in the separation of pentlandite