Dispersants & Depressants.

Smarter chemistry for superior flotation performance.

InterChem delivers high-performance dispersants and depressants engineered to maximize mineral selectivity, improve flotation recovery, and enhance gangue rejection. Our solutions are trusted across diverse mineral processing operations to control challenging gangue minerals, suppress unwanted sulfides, and improve circuit efficiency.

From pyrite suppression and clay dispersion to selective mineral depression, InterChem’s reagent portfolio is designed to help you achieve higher recoveries, cleaner concentrates, and more stable operations.

Our Solutions

Proven chemistry. Targeted results.

Our product range combines specialty formulations and reliable commodity reagents, offering flexible solutions tailored to your ore body and processing conditions.

Key Product Families

INTERFLOAT® Depressants

Optimized for selective mineral depression and improved concentrate quality.

FLOATMAX® Dispersants

Designed to control slimes, disperse clays, and enhance flotation kinetics.

Natural Biopolymers

Dextrins and starches

CMCs (Carboxymethyl Cellulose)

Sustainable, cost-effective options for gangue control and mineral selectivity.

Sulfonates

Lignosulfonates

Effective and selective depressants for pyrite in mineral flotation that are biodegradable and environmentally friendly.

Naphthalene sulfonates

Proven dispersants for clay management and slurry stability. Useful and effective depressants for graphitic material in flotation processes.

Tannins (Quebracho)

Effective natural depressants for sulfide and gangue mineral control.

Inorganic Depressants

Sodium metabisulfite (SMBS)

Sodium sulfide (Na₂S)

Sodium silicate

Sodium hydrosulfide (NaHS) and NaHS alternatives.

Reliable solutions for sulfide suppression and redox control.

Advanced Polymers

Tri-block copolymers

Amine-based reagents (DETA, TETA)

Engineered for demanding flotation environments and complex ore bodies.

Performance Through Partnership

Backed by InterChem®’s technical expertise and strategic partnerships with trusted global manufacturers, we provide bulk liquid and solid reagents supported by hands-on metallurgical guidance. Our team works closely with your operation to optimize dosage, improve selectivity, and unlock measurable performance gains.

Let’s optimize your flotation circuit.

Speak with your local InterChem representative to discuss how our dispersant and depressant solutions can improve your operation’s performance.