Flocculants for Mining & Minerals
Specialized Flocculants formulations engineered to meet the operational and regulatory demands of Mining & Minerals. Manufactured in our two Cairo facilities since 1977 and shipped to clients across MENA, Africa and Europe.
Flocculant consumption in mining concentrates in one place: solid-liquid separation of fine mineral slurries. Polyacrylamide (PAM) powder (≥ 88% active content) is the volume product, dosed into thickener feedwells and ahead of tailings deposition to accelerate settling and recover clarified water for reuse — a duty where powder form matters, since dry polymer in 25 kg bags with a 24-month shelf life survives long haulage and site storage far better than emulsions. For polishing duties — clarifying return water, supporting flotation-circuit water quality, or running a DAF unit on workshop and camp effluent — ARTFLOC L 53 H, a cationic polyacrylamide emulsion, offers faster make-down and simpler dosing. Selection starts with the mineralogy: charge type and molecular weight must match the slurry, and the polymer that thickens one ore blend can fail on the next, so cylinder settling tests across representative ore types are essential. Buyers should also scrutinise make-down: powder PAM is slow-dissolving and needs a properly sized preparation unit with aging time, and make-down water quality affects performance. Ask suppliers for dose-response curves from your own slurry samples, guidance on feedwell dosing points and dilution, storage recommendations for site conditions, and the TDS and SDS for each grade under evaluation.
Why Flocculants matter in Mining & Minerals
About Flocculants
Advanced polymer flocculants for enhanced solid-liquid separation. Improve clarity and reduce sludge in municipal and industrial applications.
About Mining & Minerals
Process water treatment, tailings management, and mineral processing chemicals for mining operations.
What is a mining flocculant?
A mining flocculant is a high-molecular-weight, water-soluble polymer — most commonly polyacrylamide-based — that gathers fine mineral particles suspended in process water into larger, fast-settling flocs. Mines use flocculants in thickeners, tailings treatment and mine-water clarification to recover reusable water, accelerate settling and meet discharge limits.
The polymer works by bridging: its long chains adsorb onto many particles at once, binding them into aggregates heavy enough to settle in minutes rather than hours. Higher molecular weight generally means stronger bridging and faster settling, while the polymer's ionic character — anionic or cationic — determines which slurries it grips best.
Anionic or cationic — which flocculant does a mine need?
Anionic flocculants suit most mineral tailings and high-solids slurries, where dissolved calcium bridges the polymer to mineral surfaces. Cationic flocculants suit organic-rich mine water and sludge dewatering, binding directly to negatively charged surfaces. Ore mineralogy, slurry pH and solids loading decide the choice — and laboratory jar testing on the actual slurry remains the industry's standard way to confirm it.
Coagulant first, flocculant second: the mine-water treatment train
Fine colloids that will not settle at all are first destabilised with a coagulant such as ferric chloride, which neutralises their surface charge. The flocculant is then dosed downstream — typically at the thickener feed well or clarifier inlet — to grow the destabilised particles into large flocs. Pairing the two stages correctly is what makes water reuse economical in water-scarce mining regions.
| Anionic | Cationic | |
|---|---|---|
| Best suited to | Mineral tailings, coal fines, high-solids slurries | Organic-rich mine water, sludge dewatering |
| Typical duty | Thickener feed, tailings settling ponds | Filtrate clarification, sludge conditioning |
| Working mechanism | Bridging via dissolved calcium on mineral surfaces | Direct charge neutralisation and bridging |
Standards & references
- GISTM (2020)Global Industry Standard on Tailings Management — the reference framework for tailings facility governance, including water management and dewatering practice.
- IFC EHS GuidelinesIFC Environmental, Health and Safety Guidelines — the effluent, water-use and tailings benchmarks lenders apply to mining projects in emerging markets.
- ASTM D2035Standard practice for coagulation-flocculation jar test of water — the bench method used to select coagulant/flocculant and dose on a representative slurry sample.
Mining flocculants — frequently asked questions
How do I choose a flocculant for my mine?
Start from the slurry, not the product sheet: ore mineralogy and surface charge point to anionic or cationic chemistry, target settling rate points to molecular weight, and jar testing on a representative slurry sample confirms the selection before plant trials. Water chemistry — pH, hardness, dissolved salts — shifts performance, so test with real process water.
What flocculant dosage is typical in mineral processing?
Flocculant demand is usually measured in grams per tonne of dry solids and varies widely with mineralogy, particle size and solids loading — from a few grams per tonne in thickener duty to substantially more for difficult ultrafine tailings. Jar testing establishes the economical dose; overdosing wastes polymer and can re-stabilise the suspension.
Can flocculants and coagulants be used together?
Yes — that sequence is standard practice for mine water carrying ultrafine colloids. The coagulant neutralises particle surface charge first; the flocculant then bridges the destabilised particles into fast-settling flocs. Dosing them in the right order, with enough mixing between stages, gives clearer overflow water than either chemical achieves alone.
Why does treated mine water matter for reuse?
Thickener overflow and clarified mine water are recovered back into grinding and flotation circuits, cutting raw-water intake — a decisive cost and licensing factor for mines in water-scarce regions such as North Africa and the Middle East. Effective flocculation is what makes that recovered water clean enough to recycle.
Is CHIMI ART a flocculant manufacturer or a trader?
CHIMI ART Industries is an Egyptian chemical manufacturer, producing water-treatment chemistry since 1977 at its plant in 6th of October City, Giza, and exporting across the Middle East, Africa and Europe. The company operates under ISO 9001, ISO 14001 and ISO 45001 management systems.
Flocculants we supply to Mining & Minerals
4 products in this line — every batch certified to international specifications and shipped with TDS and SDS documentation suitable for Mining & Minerals compliance.
ARTFLOC L 53 H
Cationic polyacrylamide is a high-molecular-weight, water-soluble polymer used as a flocculant in water and wastewater treatment. ARTFLOC L 53 H is a French-manufactured cationic polyacrylamide emulsion (≥ 30% active content) supplied by CHIMI ART for dissolved air flotation (DAF) units in industrial and municipal plants. It builds large, shear-resistant flocs that attach readily to air microbubbles, improving solids removal and clarified-water quality. Technical data sheets and application support are available.
ART FLOC 25 PWG
Cationic polyacrylamide is a water-soluble polymer flocculant that aggregates fine suspended particles into settleable flocs. ART FLOC 25 PWG is a high-molecular-weight cationic liquid grade supplied by CHIMI ART for drinking water clarification. It combines low dose consumption with a wide effective pH range (4.0-9.0), chlorine resistance and direct-feed capability, simplifying dosing systems and helping plants reduce reliance on inorganic coagulant salts.
ARTFLOC ECO
Quaternary ammonium polymer is a cationic organic coagulant used for de-coloring and organic-load reduction in water treatment. ARTFLOC ECO is a colorless liquid grade supplied by CHIMI ART that removes color, promotes flocculation and reduces COD in industrial effluents. Its permanently charged polymer chains act on dissolved dyes and colloidal organics, and it can be applied as a standalone treatment or alongside conventional coagulants.
Polyacrylamide (PAM)
Polyacrylamide (PAM) is a water-soluble polymer flocculant, (C₃H₅NO)ₙ, CAS 9003-05-8, used to aggregate fine particles into large, fast-settling flocs. CHIMI ART supplies cationic polyacrylamide as a free-flowing powder (≥ 88% active content) in 25 kg bags for sludge dewatering and water clarification in municipal and industrial plants. Correctly prepared and dosed, it improves cake dryness, filtrate clarity and the overall chemical efficiency of the treatment line.
Other industries served by Flocculants
Other product lines for Mining & Minerals
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