—— Verification of the Application of Xadias’ New Nanomicro-Powder Filtration Machine in Multi-Material Systems

【Development Background】

In recent years, as... New materials, high-end manufacturing, new energy, and the electronic information industry With rapid development, the proportion of nanomicro-powder materials used in industrial systems continues to rise. Nano-metal powders, nano-oxides, ultrafine inorganic fillers, and functional powders for electronic pastes has become a critical foundational material that influences product performance and industrial competitiveness.

During the preparation, modification, synthesis, and post-processing of powders, Solid-liquid separation is virtually integrated into all key processes. However, once the particle size enters the micrometer or even nanometer range, traditional solid-liquid separation equipment gradually reveals systemic shortcomings:

• Small particle size and high suspension stability, Difficult to effectively intercept
• Fine powder tends to be lost with the filtrate. Yield is uncontrollable.
• The slurry has high viscosity, Easily clogged and prone to blockages, increasing labor costs.
• Low washing efficiency; residual impurities and ions affect product quality.
• The filter cake has a high moisture content, resulting in high energy consumption for subsequent drying.
• Laboratory feasible, but... The failure rate for industrial-scale amplification is high.

Meanwhile, the state is... Resource utilization efficiency, energy conservation and consumption reduction, green manufacturing, and minimization of hazardous waste. Regulatory requirements are becoming increasingly stringent. If high-value nanomicro-powder materials suffer significant losses during the filtration process, it will not only affect the company’s economic performance but also run counter to current industrial policy guidelines.

Against this backdrop, traditional centrifuges, plate-and-frame filter presses, and membrane separation technologies have increasingly become unable to meet the demands of industrial-scale production of nano- and micro-sized powders. High precision, high yield, high stability The comprehensive requirements.

Based on long-term research into the production processes of nanoscale micronized powder materials and extensive feedback from field applications, Xadias has systematically developed... New nanomicro-powder filtration machine , used to address the issue of nanoscale and microscale powders under industrial conditions. “ Difficult to stop, hard to wash clean, high water content, challenging to mass-produce. ” Common challenges.

[Technical Principle]

Xia Días’ new nanomicro-powder filtration machine, based on Precision physical filtration and low-disturbance solid-liquid separation principle By optimizing the filter structure design tailored to the characteristics of nano- and micro-sized particles, we achieve effective removal of micron-sized particles. — Stable retention of nanoparticles.

During operation of the equipment:

• Adopt Pure physical filtration method Does not rely on any chemical agents or additives.
• Establish a stable and controllable particle-retention interface through a precision filtration structure.
• Complete solid-liquid separation under low-shear and low-disturbance conditions to avoid particle breakage, hard agglomeration, or morphological damage.
• Combining online washing and dehydration processes to achieve impurity removal and moisture content control.

Unlike traditional separation methods that rely on high-speed centrifugal force or strong pressure differences for driving, this device is more suitable. Small particle size, stable system, high value The nanoscale micropowder material ensures the stability and reproducibility of the separation process.

[Product Advantages]

1. Direct separation of nanometer- and micrometer-sized particles
   Can stably intercept 25 nm–5 μm   For nanoparticles and microparticles within the particle size range, the concentration of effective particulate matter in the filtrate can be controlled to: ppm Level 。
2. Pure physical filtration process
   The entire process requires no addition of any chemicals or additives, does not introduce secondary pollution, and does not alter the original physicochemical properties of the powder.
3. Integrated solid-liquid separation, washing, dehydration, and drying
   Achieve clear filtrate, thorough washing, low moisture content in the filter cake that is easy to peel off, thereby reducing the burden on downstream processing.
4. Low energy consumption, high degree of automation
   The equipment operates stably, supports continuous production, requires minimal manual intervention, and has low overall operating costs.

【Applicable Material Range】

Industrial powder raw materials

• Non-metallic mineral powders: talc, heavy calcium carbonate, quartz, wollastonite, kaolin, mica, graphite, and others.
• Industrially synthesized powders: silicon carbide, corundum, silicon nitride, precipitated silica, titanium dioxide, diamond, and others.

Nano-micron powder material

• Metal powders: nano-nickel powder, silver powder, copper powder, zinc powder, aluminum powder, iron powder, zirconium powder, titanium powder, gold ore
• Oxides and Functional Materials: Nickel oxide, zinc oxide, aluminum oxide, iron oxide, titanium oxide, nano-silica, calcium carbonate, and others.

[Application Value]

1. Improve product yield and consistency
   Stably retains fine particles, reduces the loss of high-value powders, and enhances batch-to-batch consistency.
2. Improve product purity and performance stability
   Online washing is highly efficient and effectively removes ions, impurities, and reaction residues.
3. Reduce overall production costs
   Reduce material loss, lower washing water consumption, and decrease drying energy consumption.
4. Supporting scalable and continuous production
   It possesses excellent scalability from laboratory scale, through pilot-scale, to industrial mass production.
5. Reduce environmental and compliance risks
   Reduce the discharge of powder-containing wastewater and enhance resource utilization efficiency.

[Comparative Advantages of Xadias Filtration Solutions]

[Application Effects]

[Method of Application]

The new nanomicro-powder filtration machine from Xadias has been widely adopted in the fields of metal powders, nano-oxides, functional materials, and high-value-added powders.

Through continuous and in-depth on-site user research and process validation, Xiadis has developed a comprehensive set of engineered solutions centered on the filtration, purification, washing, dehydration, and drying of nanometer- and micrometer-sized powder materials, designed to reduce moisture content. These solutions allow for flexible configuration of equipment and operating modes based on different material systems and process objectives.

Application Case 1: High-Efficiency Solid-Liquid Separation and Washing of Nano-Silver Powders

1.  Project Background

A certain new materials enterprise is engaged in... High-purity nano-silver powder Its industrial production primarily focuses on the fields of electronic pastes and conductive materials. The particle size of this type of powder is concentrated in... Hundred-nanometer level The dispersed system is stable but extremely sensitive to impurities and ion content.

The original process employed a combined conventional pressure filtration and centrifugation technique; however, during scale-up production, significant bottlenecks emerged.

• The silver powder is severely lost along with the filtrate, and the loss per batch is uncontrollable.
• The number of washes has increased, but the effect remains limited, and it’s difficult to meet the conductivity standards.
• The filter cake has a high moisture content, resulting in a long vacuum drying cycle at the downstream end and high energy consumption.

2.  Technical Challenge

• Small particle size, high value Any material leakage will result in significant economic losses.
• The slurry system is stable, making it difficult for conventional filtration media to form an effective retention layer.
• Washing and dehydration must be carried out without compromising the particle morphology.

3.  Solution Design

Xia Días introduced for this project. New nanomicro-powder filtration machine And a targeted process configuration has been implemented for the material system:

• Adopting a specialized filtration structure for micro- and nano-particles to achieve stable particle retention.
• Integrated design for filtration, washing, and dehydration, reducing intermediate handling steps.
• A purely physical separation process throughout the entire procedure, with no auxiliary agents introduced.

4.  Application effect

• The clarity of the filtrate has significantly improved. Solid residue below 1 ppm
• The recovery rate of nano-silver powder has significantly improved, and batch-to-batch stability has been markedly enhanced.
• After washing, the conductivity stabilizes and meets the standards, enhancing product consistency.
• The moisture content of the filter cake decreases, significantly reducing drying energy consumption.

Application Case 2: Stable Retention of Micron-Sized Copper Powder and Industrial-Scale Scaling-Up

1.  Project Background

A powder metallurgy materials company produces... Micron-sized copper powder It is primarily used in thermal-conducting materials and electronic packaging applications. The powder particle size distribution is narrow, yet the proportion of fine particles is high, placing stringent demands on filtration stability.

2.  Original process issue

• The centrifuge has limited ability to retain fine powders.
• Plate-and-frame filter presses have a long operating cycle and are prone to cloth fouling.
• The filtrate exhibits severe backmixing, leading to significant product fluctuations.

3.  Xia Días Solutions

• Replace the original centrifugal section with a new nano- and micro-powder filtration machine.
• Optimize the filtration parameters to achieve stable retention of micron-sized particles.
• Enhance continuous operation capability and reduce manual intervention.

4.  Application results

• 800 nm Copper powder of grade forms a stable filter cake.
• The filtrate is clear, and the solid residue is below. 1 ppm
• Product batch consistency has been significantly improved.
• The equipment operates stably, and the maintenance frequency has decreased.

Application Case 3: High-Purity Separation and Washing of Nano-Zirconia Powder

1.  Project Background

Nano-zirconia is widely used in the fields of structural ceramics, biomaterials, and high-end functional ceramics, and it has extremely high requirements for particle size, purity, and dispersibility.

2.  Process difficulties

• Nanoparticles tend to agglomerate easily and are prone to loss.
• The washing process can easily disrupt the dispersion system.
• The product performance is extremely sensitive to impurities.

3.  Implementation effect

• 500 nm The zirconia filter cake at this level has a complete structure.
• The filtrate is clear, and the conductivity remains unchanged.
• Product purity and stability have been significantly improved.

Conclusion

When the particle size of powders enters the nanometer-to-micrometer scale,
The filtration equipment is no longer “ Auxiliary equipment ”，
But rather The key equipment that determines whether a product can be successfully industrialized. 。

Xiamen Xiadis Filter Materials Technology Co., Ltd.’s new nanomicro-powder filter machine,
Through engineering validation across multiple industries, multiple systems, and multiple particle size ranges,
Provides a pathway for nanoscale micropowder materials. A solid-liquid separation solution that is implementable, scalable, and replicable. 。

For sample submission for experiments, please contact:
📞 13950107241
📧 Email: wyl@citius-filter.com
💬 WeChat & WhatsApp: +86-13950107241