Depressant D421B
PRODUCT DESCRIPTION:
- Product Name: Depressant D421B
- Appearance: Grey white powder, finely ground with excellent solubility in water, making it easy to incorporate into flotation processes.
- Dosage: The recommended concentration is 1%-2%. Typically, this product is prepared into a solution and added to the flotation process at a dosage of 50-600 g/t of raw ore. The agent is added before the collector and frother to ensure efficient interaction with the target mineral surface.
- Use/Application: Depressant D421B is primarily used to suppress pyrite in the flotation of non-ferrous metals. When added to the slurry, it reacts with the surface of pyrite to form stable, hydrophilic complexes. These complexes render the pyrite surface hydrophilic, making it less likely to float, and effectively separating it from the target mineral (e.g., copper, copper-gold, lead-zinc ores). This makes it an essential tool in the flotation process for selective separation, improving recovery rates and reducing unwanted mineral contamination in the final concentrate.
- Main Applications: Used extensively in the flotation of non-ferrous metals such as copper, copper-gold, lead-zinc, and other similar ores. Also beneficial in complex ore bodies where pyrite needs to be suppressed without affecting the desired target mineral recovery.
PACKAGING:
- 25kg/bag
- 50kg/bag
- 1000kg/bag (bulk packaging for large scale operations)
Packaging Options provide flexibility depending on operational scale, and the bags are designed for secure storage and easy handling during transportation.
STORAGE:
- Store in a shaded, cool, and well-ventilated place to maintain optimal product performance and prevent degradation due to exposure to light or temperature extremes.
- Keep away from strong oxidizing agents, strong reducing agents, or open flames. This product is stable under normal storage conditions but should be kept separate from incompatible chemicals to avoid possible reactions.
- Shelf life: Proper storage ensures that the product retains its effectiveness for up to 24 months from the manufacturing date, providing ample time for use in mining operations.
COMPOSITION:
- Active Components:
- Humic Acid: Enhances the depressant's ability to form stable complexes with pyrite, increasing the efficiency of separation.
- Fulvic Acid Sodium: Acts as an excellent dispersing agent, promoting uniform distribution of the depressant across the slurry.
- Sodium Humate: A natural organic polymer that helps modify the surface properties of pyrite, further enhancing the suppression of unwanted minerals.
- Dextrose: Serves as a stabilizing agent to ensure the depressant remains effective throughout the flotation process.
- Cellulose: Adds viscosity and improves the stability of the solution, preventing any premature reactions before the depressant is added to the flotation cell.
This combination of organic acids, stabilizers, and dispersants creates a potent depressant that targets pyrite without harming the flotation of desired metals.
SAFETY AND HANDLING:
- Dust and Aerosol Control: Avoid the formation of dust and aerosols during handling. Dust inhalation can be harmful and may cause respiratory irritation, so use appropriate dust control measures in the workplace.
- Personal Protective Equipment (PPE):
- Gloves: Always wear gloves to prevent direct contact with the skin.
- Eye/Face Protection: Use safety goggles or face shields to protect eyes from splashes.
- Clothing: Wear long-sleeved work clothing and closed footwear to prevent accidental contact.
- Training: Operating personnel must receive specialized training on safe handling, storage, and emergency procedures.
- Spill Management: In case of spills, clean up promptly using proper containment and disposal methods to avoid environmental contamination.
ENVIRONMENTAL IMPACT:
- Tied to Concentrates: The majority of the reagent reacts with pyrite and is incorporated into the concentrate, where it is eventually removed during the subsequent processing operations.
- Tailings: The remainder of the reagent, after reacting with pyrite, is transferred to the tailings. Therefore, care should be taken to ensure that tailings are managed in accordance with environmental regulations to minimize the risk of contamination.
- Water Systems: Release of the depressant into water systems should be strictly avoided. If accidental discharge occurs, immediate remedial action should be taken to contain and neutralize the reagent.
PRECAUTIONS:
- Transportation: Avoid violent impacts during transportation, as the product can become compromised if exposed to physical damage. Ensure that the product is securely packaged to prevent any spills or contamination during transit.
- Compatibility: Always verify the compatibility of Depressant D421B with other chemicals used in the flotation circuit to prevent any unwanted reactions that could affect the flotation performance or cause equipment damage.
Conclusion:
Depressant D421B is a high-performance reagent specifically designed for the flotation of non-ferrous metals, offering efficient pyrite suppression in ores such as copper, lead-zinc, and copper-gold. With its carefully formulated composition, it ensures optimal separation and recovery rates, making it a valuable addition to mining operations worldwide. For best results, ensure proper storage, handling, and use according to the guidelines provided.
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