The YX-DS101 Depressant Effectively Suppresses Pyrite In Low-alkalinity Environments.

The YX-DS101 is a high-efficiency depressant engineered to suppress pyrite and pyrrhotite in low-alkalinity and non-alkaline flotation environments, delivering an environmentally friendly alternative to conventional lime-based processes.

YX-DS101 is a highly efficient depressant for pyrite and pyrrhotite, offering an environmentally friendly solution for complex sulfide ore beneficiation. It is particularly suitable for copper ore, lead-zinc ore, and copper lead-zinc ore. Under low-alkalinity or non-alkaline conditions, it effectively suppresses the formation of pyrite and pyrrhotite while exhibiting minimal depressant effects on valuable minerals such as chalcopyrite, galena, and sphalerite. Notably, it has the potential to fully or partially replace lime in the flotation process.

As resource utilization rates increase, ore properties are becoming more complex and the technical difficulty of ore dressing continues to rise. Complex polymetallic sulfide ores exhibit variable original ore properties and close symbiotic relationships, with copper and sulfur minerals being particularly similar in nature. These minerals are often embedded in microfine grain symbiosis, making separation extremely difficult.

At present, the most widely used method to inhibit pyrite is the lime method. While this method offers good separation effects and can achieve high copper concentrate grade and recovery, the use of a high-alkali medium introduces unavoidable defects in the traditional process:

• In high-alkali media, lime exerts varying degrees of inhibition on copper, sulfur, gold, silver, and other minerals, hindering further improvement of the copper index and limiting comprehensive recovery of associated valuable metals such as gold and silver.
• Sulfur in copper tailings is strongly inhibited, requiring the addition of activators to achieve sulfur recovery from copper tailings — resulting in serious resource waste and increased flotation costs.
• Large-scale industrial use of lime is prone to plugging and scaling, and easily corrodes equipment.
• Beneficiation wastewater from this process has high alkalinity, resulting in high wastewater treatment costs.

Therefore, developing a new, environmentally friendly, and safe pyrite inhibitor has become imperative — aligning with national energy-saving and environmental protection policy while solving the problem of high-alkalinity wastewater for enterprises.

The mechanism of action for this pyrite depressant involves its reaction with the surface of pyrite upon introduction into the slurry. This reaction leads to the formation of a stable complex, rendering the surface of pyrite hydrophilic and preventing its adsorption with bubbles. Consequently, the treated pyrite is unable to enter the flotation foam layer and instead becomes a foam product, facilitating the separation of pyrite from the desired target minerals.

1. Background: More than 40 years of mining industry experience.
2. Product: Patented products specially designed for complex, difficult mineral ores.
3. Technology Service: Formula adjustment and recommendation of the most suitable product model according to different application environments.
4. Samples: Samples provided for testing.

Y&X Beijing Technology Co., Ltd. is a leading provider of advanced beneficiation solutions for metal mines, with a specialization in processing refractory ores. With years of experience in the processing of copper, molybdenum, gold, silver, lead, zinc, nickel, magnesium, scheelite, rare metals such as cobalt and palladium, and non-metallic ores like fluorite and phosphorus, we offer tailored solutions based on ore characteristics and production requirements. Our solutions utilize cutting-edge methods and highly efficient reagents to maximize client benefits.

We are committed to research and development (R&D) and the production of eco-friendly reagents, supporting sustainable mining practices that improve reagent efficiency and resource utilization. Our innovative flotation reagents have successfully transformed previously unproductive mines into industrialized operations, turning waste into valuable resources.

• High-efficiency Frother: Provides superior performance compared to common frothers like terpineol oil and MIBC.
• High-efficiency Collector: Increases metal recovery rates more effectively than traditional collectors.
• Pioneering Depressant: A powerful solution for complex refractory beneficiation of ores with high talc, carbon, and fine mud/clay content. Special copper depressants offer enhanced solutions for copper and molybdenum separation.
• High-efficiency Activators and Regulators: Essential to optimizing beneficiation performance and improving indices.
• Flocculent: Offering better cost performance and extensive mining application experience compared to top global brands.