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Home / Products & Industries / Mining Solutions / Sulfide Ores
Mining Solutions
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Chemical Solutions for Sulfide Ore Processing

Our Products
Our Products
Guide of Flotation Reagents
Guide of Flotation Reagents

Advanced Chemical Solutions for Optimized Sulfide Ore Processing

Clariant Mining Solutions delivers advanced flotation reagents that optimize recovery, concentrate grade, and operational efficiency in sulfide ore processing. Our comprehensive portfolio includes customized collectors tailored to specific ore mineralogy, frothers optimized for bubble size and stability, depressants for graphite, pyrite and for copper-moly separation (NaSH replacement), filter aids for concentrates, and acid mist supressants for electrowinning operations.

HOSTAFLOT™ Flotation Collectors

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Clariant Mining Solutions flotation collectors are engineered to increase sulfide recovery rates and concentrate grade during sulfide ore processing.The HOSTAFLOT™ flotation collector product line includes:

  • HOSTAFLOT™ formulated collectors including dithiophosphates (DTP), thionocarbamates (TC), dithiophosphinates (DTPI), and customized formulations to maximize recovery and grade as the ore changes throughout the life of the mine.
  • HOSTAFLOT™ xanthate-replacement collectors as a safer and more sustainable alternative for sulfide ore flotation without compromising recovery. Ready-to-use, non-flammable, water-soluble liquid collectors that eliminate the exposure to hazardous decomposition products like C₂S that can take place during preparation and use of xanthates.
  • HOSTAFLOT™ collectors for coarse particle flotation to improve recovery of particles larger than 200µm when trying to increase mill throughput or designing coarse gangue rejection circuits.

    FLOTANOL™ Frothers

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    Clariant Mining Solutions’ frothers optimize sulfide flotation through precise froth stability and bubble control to maximize mineral recovery. They are customized for each operation's specific needs to improve bubble mechanical strength for coarse and fine particle recovery while allowing effective drainage.

    Specially formulated FLOTANOL™ frothers for coarse particle flotation improve flotation circuits operating at larger particle sizes.

    FLOTICOR™ DP Depressants

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    Depressants designed to optimize mineral separation in sulfide ore flotation operations.The FLOTICOR™ DP depressant product line includes:

    • FLOTICOR™ DP copper depressants to replace NaSH in copper-molybdenum separation, eliminating H₂S exposure while maintaining recovery at lower dosages
    • FLOTICOR™ DP pyrite depressants to reduce iron content in copper concentrates
    • FLOTICOR™ DP carbon depressants to suppress carbonaceous gangue interference in carbon-containing ores
    • FLOTICOR™ DP clay and silicate depressants to minimize interference of talc, biotite, mica, feldspar and other silicates in flotation
    The image shows a large transparent sphere surrounded by several smaller metallic spheres labeled "Mo" (Molybdenum) and one smaller metallic sphere labeled "Cu" (Copper). The "Mo" spheres are silver/gray in color, while the "Cu" sphere is copper-colored. The arrangement suggests a molecular or atomic structure, possibly representing copper atoms interacting with molybdenum atoms or a cluster of molybdenum atoms with a copper atom nearby.

    Coarse Particle Flotation Reagents

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    HOSTAFLOT™ collectors and FLOTANOL™ frothers optimized for recovery of particles larger than 200µm.

    Clariant Mining Solutions’ coarse particle flotation chemical solutions enable greater energy efficiency, increased throughput, and improved tailings handling. Whether increasing grind size to increase throughput or designing new circuits with coarse gangue rejection, Clariant’s coarse particle flotation reagents help optimize sulfide flotation performance.

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    FLOTICOR™ FA Filter Aids

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    Reduce moisture content and optimize filtration rate in filtration of sulfide ore concentrates and tailings.

    FLOTICOR™ EW PFAS-free Acid Mist Suppressants

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    Non-fluorinated suppressants for acid mist in electrowinning and electroplating operations to decrease airborne acid concentration. Clariant’s acid mist suppressants are completely compatible with the electrolyte solutions and preserve cathode quality.

    Flotation Solutions for Frequently Occurring Sulfide Minerals

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    Clariant Mining Solutions offers an extensive portfolio of high-performance flotation reagents specifically designed for the following sulfide minerals:

    Copper

    HOSTAFLOT™ collectors, FLOTANOL™ frothers, and FLOTICOR™ DP depressants maximize copper recovery and concentrate grade across primary, secondary, and oxidized copper ores. They also effectively manage challenging conditions such as high viscosity pulps, undesirable contaminants, and interference of iron sulfide minerals like pyrite.

    Molybdenum

    HOSTAFLOT™ collectors, FLOTANOL™ frothers, and FLOTICOR™ DP sulfide depressants optimize molybdenum recovery and quality creating a safer work environment. HOSTAFLOT™ molybdenum collectors are formulated avoiding hazardous aromatic components (benzene, toluene, ethylxylene, BTEX) and deliver molydenum concentrates with low oil content. FLOTANOL™ frothers are especially formulated for the unique froth stability requirements of copper-molybdenum circuits. FLOTICOR™ DP sulfide depressants effectively depress copper in copper-molybdenum separation circuits. When used as complete replacement for NaSH, they eliminate H₂S exposure risks.

    Platinum Group Metals (PGM)

    Customized HOSTAFLOT™ collectors and FLOTANOL™ frothers maximize PGM recovery and concentrate quality through enhanced selectivity against chromite and talc gangue minerals. Lower chrome and talc content and increased overall PGM grades in the concentrates are achieved.

    Polymetallic Ores

    HOSTAFLOT™ collectors including dithiophosphinates and dithiophosphinate alternatives maximize recovery and selectivity in complex polymetallic ore processing. Clariant’s polymetallics collectors are formulated specifically for lead, zinc, copper, nickel, cobalt, and silver circuits. FLOTANOL™ frothers optimize froth properties for efficient coarse and fine particle flotation.

    Gold and Silver

    HOSTAFLOT™ collectors are designed for enhanced recovery of both gold and silver. FLOTANOL™ frothers maximize recovery of precious metals from sulfide-bearing ores.

    Do You Know our Competence Center for Sulfide Ores?

    Clariant's Competence Center for Sulfide Ores in Santiago, Chile develops customized flotation reagents and solutions for copper, molybdenum, PGMs, polymetallic, gold and silver ore processing.
    Our technical specialists work in partnership with our customers to optimize mineral recovery, improve process efficiency, and deliver tailored solutions that address the specific metallurgical challenges of each operation.



    We Understand Your Sustainability Challenges.

    Discover how Clariant Mining Solutions helps you achieve six sustainability goals through innovative chemistry. Let's work together to create solutions for your specific needs.

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    Delivering minerals essential for the energy transition

    Supporting the energy transition with high-performance mining chemicals, including flotation reagents that optimize mineral processing and enhance recovery of copper, lithium, and other decarbonization minerals. Explore our solutions

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    Supporting the decarbonization of the steelmaking value chain

    Delivering higher grades and improving recovery with flotation reagents for iron ore and enabling the production of low-silica pellets to support the decarbonization of the steelmaking industry with high-performance pelletizing binders. Explore our solutions

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    Improving energy efficiency

    Optimizing the recovery of minerals contained within coarse size fractions with specialized collectors and frothers for coarse particle flotation to reduce energy consumption in grinding processes. Explore our solutions

    Clariant_Icon Tailing Management

    Managing tailings storage facilities in alignment with the GISTM

    Helping mining operations implement the Global Industry Standard for Tailings Management (GISTM) by minimizing risks in tailings storage facilities with filter aids to improve tailings filtration and flotation solutions to help recover valuable minerals from tailings. Explore our solutions

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    Optimizing water usage

    Helping beneficiation plants maximize water recovery with rheology modifiers for tailings handling and dewatering and water conditioning agents for heavy metal and cyanide removal. Explore our solutions

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    Minimizing use of hazardous chemicals in operations

    Helping the mining industry replace hazardous chemicals with safer and less toxic alternatives, such as xanthate replacement collectors, copper depressants that replace NaSH and PFAS-free acid mist suppressants. Explore our solutions

    The image is a cover page or title page for a document or presentation by Clariant Mining Solutions. The title is "Flotation of Frequently Occurring Minerals." The background color is orange, and the Clariant logo is displayed at the top right corner. The phrase "Greater chemistry" is also visible near the bottom right.

    Mineral Flotation Reagents: Find the Best Solutions for Your Process

    Explore our "Flotation of Frequently Occurring Minerals" tool, offering tailored recommendations for the industry's most common minerals. Whether you need direct or reverse flotation solutions, discover the ideal reagents to maximize recovery rates and process efficiency.

    Resources

    • Download
      Brochure Sulfide Ores 2026 EN
      Download
    • Download
      Chart Flotation of Frequently Occurring Minerals 2025 EN
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