Precipitation tanks, functionally designed to facilitate the efficient settling of solids from liquids, are a critical component of hydrometallurgical plants. These tanks enhance both product purity and metal recovery, while also optimizing the overall process by reducing the operational load on downstream filtration systems. There are two main types of precipitation tanks: batch and continuous. Batch precipitation tanks are engineered to process a defined volume of liquid in discrete cycles. Continuous precipitation tanks, on the other hand, provide a streamlined solution by allowing uninterrupted flow of liquid through the system. This configuration is especially advantageous for high-throughput operations where a constant processing rate is essential. Proses Makina offers precipitation tanks that are optimally designed to meet target particle size distributions and specific operational parameters. Key factors such as the solid-to-liquid ratio, the pH and temperature conditions required for effective metal precipitation are all carefully considered to maximize process efficiency. Each tank is designed with four distinct zones: inlet, settling, outlet, and sludge zones. The precise engineering and balance of these zones minimize filtration time and contribute to increased product purity. This layered design approach ensures a robust and reliable precipitation process tailored to the specific needs of the operation.
Key Fetatures:
Metal Precipitation Tank
Technical Specifications
The Precipitation Tank is designed for chemical precipitation, metal recovery and wastewater treatment processes. The system provides efficient mixing of process solutions with precipitation reagents, ensuring homogeneous reactions, rapid crystal formation and effective solid-liquid separation before filtration.
| Model | Working Volume | Tank Diameter | Tank Height | Agitator Power | Typical Batch Capacity | Approx. Dimensions (Ø × H) | Approx. Weight |
|---|---|---|---|---|---|---|---|
| PT-250 | 250 L | 700 mm | 1,200 mm | 0.37 kW | 150–250 L | 700 × 1,800 mm | 180 kg |
| PT-500 | 500 L | 900 mm | 1,500 mm | 0.75 kW | 300–500 L | 900 × 2,100 mm | 280 kg |
| PT-1000 | 1,000 L | 1,150 mm | 1,800 mm | 1.5 kW | 600–1,000 L | 1,150 × 2,500 mm | 480 kg |
| PT-2000 | 2,000 L | 1,500 mm | 2,100 mm | 2.2 kW | 1,200–2,000 L | 1,500 × 2,900 mm | 850 kg |
| PT-3000 | 3,000 L | 1,700 mm | 2,400 mm | 3 kW | 1,800–3,000 L | 1,700 × 3,200 mm | 1,200 kg |
| PT-5000 | 5,000 L | 2,100 mm | 2,800 mm | 5.5 kW | 3,000–5,000 L | 2,100 × 3,800 mm | 1,900 kg |
| PT-10000 | 10,000 L | 2,700 mm | 3,600 mm | 7.5 kW | 6,000–10,000 L | 2,700 × 4,800 mm | 3,500 kg |
Standard Technical Features
- Heavy-duty vertical precipitation reactor
- High-efficiency top-entry agitator
- Variable-speed mixing (optional VFD)
- Homogeneous chemical dispersion
- Conical or flat-bottom configuration
- Automatic chemical dosing compatibility
- PLC & HMI automation
- pH, ORP and temperature sensor connections
- Sampling port
- Overflow and drain connections
- Corrosion-resistant PP, HDPE, FRP or Stainless Steel construction
- Easy maintenance access
- Modular industrial design
Typical Applications
- Precious metal precipitation
- Gold refining
- Silver refining
- Platinum Group Metals (PGM) recovery
- Battery recycling
- Hydrometallurgical processing
- Heavy metal precipitation
- Industrial wastewater treatment
- Chemical manufacturing
Operating Conditions
| Parameter | Recommended Value |
|---|---|
| Operating temperature | Ambient to 90°C |
| Operating pressure | Atmospheric |
| Mixing speed | 20–250 rpm (depends on project) |
| Process type | Batch or semi-continuous |
| Tank material | PP, HDPE, FRP, AISI 304 or AISI 316L |
| Liquid density | Up to 1.5 kg/L |
| pH operating range | 0–14 (depending on construction material) |
Available Connections
- Process solution inlet
- Chemical dosing inlet
- Product outlet
- Bottom drain connection
- Overflow connection
- Sampling port
- Vent connection
- pH / ORP sensor ports
- Temperature sensor connection
- Inspection hatch