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Dia-Filtroplast® Filters for Battery Manufacturing
High-efficiency candle filters for battery and industrial fluid filtration. Durable, chemical-resistant, and regenerable.
Engineered for High-Solids Filtration in Battery Materials Manufacturing
Pall’s Dia-Filtroplast® (DFL) candle filter elements are engineered to handle aggressive fluids such as brines, acids, and caustic solutions. Constructed from high-density polyethylene (HDPE), these filters offer exceptional chemical resistance and durability when used in a backwash filter configuration, making them ideal for high solids content applications
Innovative Filter Element Design for High-Efficiency Filtration
| Dia-Filtroplast® | Competitor |
|---|---|
| Asymmetric Structure: Designed with an asymmetric configuration for enhanced filtration performance. | Symmetrical Structure: Utilizes a uniform structure that limits filtration efficiency. |
| Dual-Layer Design: A high-porosity support layer combined with a high-precision surface filtration layer effectively prevents particles from entering the filter element. | Deep Filtration Drawback: Particles easily penetrate the element, making backwashing and regeneration difficult. |
| Efficient Cleaning: The asymmetric structure enables easy backwashing and regeneration, contributing to an extended service life. | Reduced Durability: Symmetric design leads to shorter service life and frequent filter replacements. |
| Optimized Performance: High flux reduces device volume and overall cost, while maintaining low pressure drop and high throughput across filtration cycles. | Performance Limitation: Low flux results in higher pressure drop and reduced operational efficiency. |
| Robust Design: The Dia-Filtroplast® filter elements are engineered with high mechanical strength, ensuring resistance to deformation and long-term operational stability. Unlike conventional filters, they do not rely on cloth, felt, or membranes—materials that are prone to tearing during operation. This design choice enhances durability and reliability, especially in demanding industrial environments. | Structural Weakness: Higher risk of filter deformation under elevated pressure conditions. |
Why Choose Dia-Filtroplast® Absolute-Rated Filters
- Material: HDPE with sintered support and membrane layers
- High Abrasion Resistance: Integral fusion of support and membrane
- Back flushable: Even under high pressure
- Hydrophobic: Does not swell in water
- Chemical Resistance: Withstands acids, alkalis, saline solutions, alcohols, and hydrocarbons
- Absolute Rated: Ensures high filtration efficiency
- Long Service Life: Durable and reliable for continuous operations
Use Cases for Dia-Filtroplast® Filters in Battery Manufacturing
Lithium Refining:
- Protects nano-filter and reverse osmosis (RO) membrane systems from fouling and scaling caused by carryover solids.
- Shields ion exchange (IX) systems and crystallizers from solid contaminants.
- Recovers fine particles of lithium carbonate or lithium hydroxide from mother liquor recycle and wash water streams.
Precursor Cathode Active Material (Pre-CAM) Processing:
- Enables recovery of mixed metal hydroxides from mother liquor and water wash streams.
Working Mechanism of Dia-Filtroplast® Filters
Dia-Filtroplast® filters are engineered for high-efficiency solid-liquid separation, utilizing a multi-stage backwash filtration process to maintain optimal performance and longevity. This self-cleaning mechanism ensures minimal downtime and consistent filtration quality, making it ideal for demanding industrial applications.
- Filtration: In this initial stage, the filtration system operates under normal conditions. The feed (typically water or another liquid) passes through a filter medium designed to trap suspended solids, particulates, and contaminants. The clean filtrate exits the system, while the solids begin to accumulate on the surface or within the depth of the filter.
- Cake accumulation: As filtration progresses, trapped particles begin to form a layer on the surface of the filter medium, commonly referred to as the filter cake. Initially, this layer can enhance filtration efficiency by acting as an additional barrier to fine particles. However, as the cake thickens, it significantly increases the resistance to flow and leads to a higher pressure drop across the filter. This buildup eventually reduces system performance and signals the need for cleaning or backwashing.
- Backwashing & Sedimentation: Once the filter cake reaches a critical thickness, the system initiates backwashing—a cleaning process that reverses the flow direction using pressurized liquid or gas. This dislodges the accumulated particles from the filter medium. The dislodged solids are then flushed out and collected in a sedimentation tank or disposal system. The filter resumes normal operation with minimal interruption.
This cycle can be automated and repeated thousands of times, significantly extending the filter’s service life
To ensure regulatory requirements are met for your country or region, please contact our sales team.