Copper Collectors at low pH range

Copper Collectors at low pH range

Novel flotation collector for base and precious metals at lower pH value. Florrea MAXCOPPER@ series collectors are world advanced functionalized flotation reagents for minerals Processing. This new flotation reagent has been shown to demonstrate robustness in plant operation – reduced variability in plant recoveries, and improved overall copper recovery. It is a greener mining reagent than standard products especially xanthates.

MAXCOPPER@ Copper Flotation Collector at Lower pH range

Novel flotation collector for base and precious metals at lower pH value
Florrea MAXCOPPER@ series collectors are world advanced functionalized flotation reagents for minerals Processing.
This new flotation reagent has been shown to demonstrate robustness in plant operation – reduced variability in plant recoveries, and improved overall copper recovery.
It is a greener mining reagent than standard products especially xanthates.

Application

» Copper ores

» Copper Gold ores

» Copper Molybdenum ores

» Platinum Group Metal Ores(PGM)

» Copper Lead Zinc Gold Siver complex polymetallic ores

♦ MAXCOPPER@ series Florrea collectors is excellent very strong and selective collector for Cu. Mo. Au. Ag. PGM, especially for Cu rich minerals and coarse particles.

♦ MAXCOPPER@ is now in commercial use worldwide for the flotation of copper, gold, silver and PGM minerals.

♦ It is suitable for selective flotation of copper ores containing iron sulfides under mildly alkaline conditions (pH 8-10).

♦ MAXCOPPER@ series collectors can also be used as xanthate replacement completely or partially

Collecting Power
exceptional stronger.
In view of the limitations of traditional sulfide collectors and xanthate,
MAXCOPPER@ combine the selectivity of traditional collectors and the collecting power of xanthates.

Selectivity
very selective against pyrite even at lower pH below 10.

Pulp pH value:7-11
Hydrolytic stability over a wide pH range of 7 to 11.

Dosage:5-30g/T

Frothing characteristics
Because it operates at lower pH levels, the froth generated can be dramatically changed so the use of these products normally requires additional or stronger frothers like florrea F105.F573.F542G etc

Reagent preparation and feeding method:
undiluted.

Addition point
The best point of addition should be determined by laboratory and plant testing.

Benefits

♦ Substantial lime savings, provides a considerable reduction in lime costs.

♦ Combine the selectivity of sulfide ore flotation collector and the collecting power of xanthates.

♦ Increased recovery of coarse middlings particles

♦ Increase the recovery of copper

♦ Generally, enhances the recovery of precious metals, well established in practice.

♦ Enhances the molybdenum recovery in both Cu-Mo ores and primary molybdenum ores.

♦ Improved gangue sulfide rejections (including pyrite, pyrrhotite, inactivated sphalerite, and Galena)

♦ Operating in the lower pH range is also good on ores containing significant amounts of clay and other slimes, also reduces pulp viscosity. It usually enhances flotation efficiency or permits operating the circuit at higher % solids

♦ Their reduced dosage also translates directly to reduced residual reagent concentrations in the concentrate and tailings. This, in turn, provides significantly better environmental profile over traditional collectors.

♦ Very effective in the flotation of pyrite and arsenopyrite in mildly acidic and neutral circuits.

♦ Can also be also used as a secondary collector at low dosages (5g/t-15g/t), in conjunction with other collectors in the rougher or cleaner circuits.

♦ Faster kinetics in the flotation of sulfides and precious metals than traditional collectors; this is an important advantage in circuits with shorter residence time.

♦ MAXCOPPER@ are liquids which afford greater flexibility in dosing can be dosed directly into the mill, conditioners or stage-added to the flotation bank. MAXCOPPER@ do not require reagent dosing systems traditionally required for xanthates.

♦ Improved reagent handling also provides significantly less chemical exposure to product.

Product Functions

» Effective Collector at Neutral pH (Low Lime Requirement)

» Boosts copper and Precious Metals Recovery

» Effective Secondary Collector to Boost Xanthate Performance

» High Mo/Fe selectivity

» Low Dosage

» Ready To Use - Dosed Neat

» Selective Against Pyrite

Please contact Florrea representative
To address your mineral processing challenges for BETTER FLOTATION AND METALLURGICAL RESULT.

Florrea is committed Helping mining operators boost their productivity thanks to our specialty mining reagents.
Meeting or exceeding the most stringent technical and environmental specifications, our specialty mining reagents help customers in the mining industry improve their productivity and reduce operating costs while meeting complex metallurgical challenges.

As a fast growing value added better solutions provider and partner to the mining industry. Florrea leverage more than our industry knowledge, applications expertise and on-site technical support to optimize mining operations worldwide in mineral processing, mineral refining and solvent extraction.

What kind of ore Beneficiation can MAXCOPPER be used?

» MAXCOPPER@ is widely used for the flotation of Cu, Cu-Mo and Cu-Au ores.

» The functionalized collector MAXCOPPER@ are especially effective for copper-rich minerals such as chalcocite, digenite, covellite and bornite.

» Selective against galena

Why MAXCOPPER@ is more selective against pyrite ?

Pyrite floats quite readily in neutral and acidic circuits.
This make the new collector MAXCOPPER@ series strong copper sulfide collectors at low pH values (<11), for example, while still maintaining the selectivity against pyrite characteristic of sulfide collectors.

Why MAXCOPPER@ can replace traditional sulfide collectors and xanthate completely?
It is true that xanthate derivatives and other traditional collectors are good collector for selective flotation of copper ores in alkaline circuits.

However, due to its high selectivity, it generally requires the conjoint use of a xanthate to insure maximum recovery of middling particles.
but MAXCOPPER @combines both the selectivity of the traditional selective flotation collectors and the collecting power of xanthate, and itself is stronger enough and maybe does not require xanthate as secondary collector for ensuring recovery as in the case.

At pH 10 or below, it keeps the collecting power of xanthate, shall MAXCOPPER@ still keep good selectivity against pyrite?

» They are more selective against iron sulfides than traditional selective collectors even at pH < 10.

» Florrea MAXCOPPER@ is a selective collectors for operation at reduced pH values and, as such, afford substantial lime savings.

» They have excellent shelf life, hydrolytic stability in a wide pH range, and they are readily dispersed in water.

What pulp pH can be suitable?

» Florrea MAXCOPPER@ is a suitable selective flotation of copper ores containing iron sulfides under mildly alkaline conditions (pH 8-10), in contrast to the higher pH values required to depress pyrite when using xanthate and other collectors.

» Because of their high collecting power in moderately alkaline circuits and their high selectivity against iron sulfide minerals, the preferred rougher flotation pH for these collectors is usually in the range of 8 to 10, compared to the typical range of 10 to 12 required with other collectors.

» Similarly, in the cleaner circuits, the pH required is lower than that necessary with other collectors.

Why the dosage of MAXCOPPER@ is much lower than traditional collectors like xanthate and thionocarbamates?
In most cases, the dosage required of this collector MAXCOPPER@ is lower than that for the traditional collectors, in addition to providing considerable savings in lime costs.

Why Florrea collector MAXCOPPER@ can increase copper recovery a lot?
Microscopical examination of flotation tails from porphyry copper plants using Florrea MAXCOPPER has demonstrated that part of the performance advantages obtained with these collectors can be attributed to the efficient recovery of coarse sulfide particles, including middlings.

Why MAXCOPPER@ can improve precious metals recovery?
Because lime usually depress precious metals but MAXCOPPER@ require less lime in flotation as pyrite depressant.

Please contact Florrea representative

to address your mineral processing challenges for BETTER FLOTATION AND METALLURGICAL RESULT.

Florrea teams work hand-in-hand with mining metallurgists as team work to maximize the performance of your mining operations through optimum reagent selection, superior applications expertise, and a constant stream of innovative, proprietary products and technology.

SUCCESS CASE 1

♦ Benefit: 5% copper recovery for a large copper gold concentrator

♦ Collector: Florrea MAXCOPPER Collectors replacing SIBX and other thio collectors

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