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Filter Cloth in Chemical Refining of Potash and Soda Feldspar Powder
Release time:
2025-09-16
Ore crushing and grinding
: Feldspar ore is crushed to a certain particle size and made into slurry;
- Chemical treatment and leaching : Impurities are dissolved and separated using acid or alkaline solutions;
- Slurry filtration and solid-liquid separation : Separation of filtrate containing valuable components and feldspar powder solids;
- Washing and drying : Further purification to remove impurities and residual liquids.
- During this process, the slurry often has high concentration and high viscosity, with uneven particle size distribution. Some fine particles easily penetrate the filter layer, causing turbid filtrate; while some coarser particles tend to form a filter cake layer on the filter cloth surface, increasing filtration resistance. This poses the following challenges for the filter cloth: High filtration precision requirements
: Effectively intercept fine particles to maintain clear filtrate;
- Balance permeability and strength : Ensure liquid can quickly pass through the filter cloth while resisting high slurry pressure and long-term mechanical abrasion;
- Strong chemical resistance : Maintain stable performance in acidic, alkaline, and complex chemical environments;
- Easy cleaning and regeneration : Ensure long-term cyclic use of the filter cloth and reduce operating costs.
- 2. Advantages of Horizontal Vacuum Belt Filter Compared with traditional plate and frame filter presses or rotary vacuum filters, the horizontal vacuum belt filter shows obvious advantages in the refining of potash-soda feldspar powder in the chemical industry:
Continuous operation
HVBF
- can achieve continuous feeding, filtration, washing, and discharging of materials, greatly improving processing capacity and suitable for large-scale mineral powder refining production.
Excellent washing effect Materials are evenly distributed on the filter belt and can be washed multiple times by spraying, significantly reducing impurity residues in the filter cake and improving product purity. - Controllable filter cake thickness
By adjusting the parameters of the cloth and vacuum zones, the filter cake thickness can be precisely controlled to ensure liquid permeability speed and optimize solid recovery rate. - Strong adaptability
Suitable for high concentration and high viscosity slurry, especially for potash-soda feldspar powder, which has a complex particle distribution in solid-liquid mixtures. - However,
its efficient operation depends on the performance and quality of the filter cloth. The filter cloth is both a
" Excellent washing effect filter and a conveyor belt ” , whose stability and durability directly affect the equipment's working efficiency. and a 3. Xidiars Industrial Filter Cloth Solutions ” As a leading brand in China's filtration material technology fabric research and manufacturing, Xiamen Xidiars has accumulated rich experience in developing filter cloth for horizontal vacuum belt filters. For the special working conditions of potash-soda feldspar powder refining, Xidiars offers the following core advantages:
High-efficiency solid-liquid separation performance
The filter cloth structure is precisely designed to ensure rapid liquid passage while effectively retaining fine particles, guaranteeing filtrate clarity and meeting the strict purity requirements of downstream chemical products.
- Excellent mechanical strength and wear resistance
Potash-soda feldspar slurry contains many hard particles that cause severe wear on the filter cloth surface. Xidiars filter cloth uses reinforced fibers and advanced weaving technology, providing strong tensile strength and significantly extended wear life. - Acid, alkali, and temperature resistance
During chemical leaching and washing, the filter cloth is in long-term contact with acidic and alkaline liquids. Xidiars filter cloth has excellent chemical corrosion resistance, maintaining stable filtration performance even in harsh environments. - Diverse processing and customization
According to different customer equipment and process requirements, Xidiars can provide - special processing such as glue brushing, edging, punching, and splicing
to ensure close fit between the filter cloth and equipment, enhancing operational stability. Easy cleaning and recycling ，Ensure the close fit between the filter cloth and the equipment and improve operational stability. - Easy to clean and recycle
The filter cloth surface is smooth, with good filter cake release properties, reducing clogging, and easy to clean and regenerate. Combined with an online cleaning system, it can extend service life and reduce user operating costs.
4. Application Effects and Industry Value
In the solid-liquid separation stage of potassium-sodium feldspar powder refining, the horizontal vacuum belt filter using Xadiyas industrial filter cloth can bring the following value to chemical enterprises:
- Improve production efficiency Continuous operation and rapid liquid permeability significantly shorten the production cycle;
- Enhance product quality High clarity of filtrate and low impurities in filter cake help obtain high-purity feldspar powder products;
- Reduce operating costs Long filter cloth life and good cleaning regeneration performance reduce replacement and downtime costs;
- Meet environmental protection and safety requirements Stable solid-liquid separation effect helps reduce waste liquid discharge, aligning with the trend of green chemical industry development.
5. Future Outlook
With the continuous development of new materials and green chemistry, solid-liquid separation technology is evolving towards higher precision, lower energy consumption, and more environmental friendliness The combination of horizontal vacuum belt filters and high-performance industrial filter cloth will play an increasingly important role in the refining of potassium-sodium feldspar powder and other mineral powders.
Xadiyas will continue to focus on the research and innovation of filtration material technology, combining international perspectives and industry application experience to provide customized solid-liquid separation solutions for chemical industry customers, promoting the refining process of potassium-sodium feldspar powder and other minerals towards efficiency, energy saving, and sustainability.
✦ Conclusion
Potassium-sodium feldspar powder refining is not only a mineral processing procedure but also a comprehensive test of filtration and separation technology in the chemical industry. On this stage, Xadiyas industrial filter cloth, through efficient cooperation with horizontal vacuum belt filters, provides chemical enterprises with stable, professional, and reliable technical support, helping the industry achieve higher quality and more sustainable development.
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