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Rise of 10,000-Mesh Graphite & CITIUS Filter Cloth's New Mission
Release time:
2025-07-09
I. Graphite: From Traditional Material to Future Strategic Resource
Graphite, this seemingly ordinary black mineral, is quietly driving a materials revolution. From traditional refractory materials and electrode materials to today's new energy batteries, nuclear energy, energy storage materials, graphene, and military protective layers, the application of graphite is accelerating its penetration into high-tech fields. International materials experts predicted as early as the late 20th century: "The 20th century was the century of silicon, and the 21st century will be the century of carbon." Now, this judgment is gradually being verified.
In terms of industry scale, The global graphite market reached US$11.913 billion in 2022, a year-on-year increase of 57.49%. Looking back from 2016 to 2022, the compound annual growth rate of the global graphite market reached 38.94% , establishing its core position in strategic minerals. China is not only the world's largest reserve and producer of natural graphite, with a production of 2.312 million tons in 2022, accounting for more than 60% of the global total , but also an important force in the deep processing and export of graphite.
II. Ultra-fine Wave: 10000-mesh Graphite Powder is Ushering in a Dual Upgrade of Technology and Market
In the deep processing link of the graphite industry chain, particle size control is a key indicator that determines the value of the product. In particular, 10000-mesh (about 1.3 microns) ultrafine graphite powder , has become the "gold powder" in high-end applications.
This ultra-high mesh graphite product is mainly used in:
Lithium battery anode materials : Improve specific surface area and conductivity, and enhance cycle stability;
Graphite precursor for graphene preparation : Complete layer structure, high purity, uniform particle size;
Aerospace lubrication and heat-resistant materials : Stronger stability under extreme conditions;
High-performance thermal conductive composite materials : Used in 5G equipment, precision instruments, electric vehicle thermal management, etc.
However, 10000-mesh graphite powder not only requires extremely high raw material purity, but also poses an extreme challenge to particle size control, grading, and filtration and dehydration systems . Traditional sedimentation and centrifugation methods are no longer able to meet the needs of industrialization in terms of efficiency and energy consumption. Modern industry urgently needs a more stable and efficient ultrafine powder filtration solution.
III. Market Demand Forecast: Entering the "Tens of Thousands of Tons" Consumption Era
The global high-purity graphite market will enter a period of rapid growth in 2025. Driven by the demand from the new energy, semiconductor, and nuclear energy industries, the market size is expected to exceed US$18 billion, with a compound annual growth rate of over 12%. As the largest producer and consumer, China accounts for 62% of the production capacity.
Taking China's lithium battery industry as an example, the total production capacity in 2024 has exceeded 900 GWh, of which power batteries exceed 600 GWh. According to calculations:
Each GWh battery ≈ 1300 tons of spherical graphite
Among them, about 3% is ultrafine surface-treated powder
That is: 600 GWh × 1300 tons × 3% ≈ 23,400 tons
It is estimated that the annual demand for 10000-mesh ultrafine graphite powder in the Chinese market in 2025 will reach 25,000 to 30,000 tons. The global market is expected to reach 40,000 to 60,000 tons . This data does not include potential incremental amounts from energy storage systems, consumer electronics, and overseas markets.
✳️ The market for ultrafine graphite has transitioned from "high-end experimentation" to "large-scale production," which means that industrial filtration systems and filter cloth capacity have become one of the bottleneck links. 。
IV. From Crude Ore to Nanometer Purification: Industrial Filter Cloth is Reshaping the Graphite Refining Process
In the production process of ultrafine graphite powder, from the initial selection of crude ore, flotation purification, acid washing purification, to the final micro-powder grading and dehydration drying, every process is inseparable from precise solid-liquid separation technology . Among them, industrial filter cloth, as the "core execution layer" of the filtration system, its performance directly determines the quality and efficiency of graphite refining. 。
Typical application stages of industrial filter cloth include:
Process Stage | Filter Cloth Function | Requirements |
|---|---|---|
Flotation and concentration dehydration | Primary solid-liquid separation filtration | Corrosion-resistant, wear-resistant, high water permeability |
Acid washing and purification filtration | Filtration of graphite in an acidic solution environment | Acid-resistant, high-temperature resistant, strong chemical stability |
Ultrafine powder grading filtration | Precise particle size filtration | Uniform pore size distribution, good peelability, not easy to block |
Dehydration before vacuum belt drying | Control water content | High filtration efficiency, strong regeneration ability |
V. Xiamen CITIUS: Providing System-Level Solutions for Ultrafine Graphite Filtration
In the field of graphite deep processing, Xiamen CITIUS Filtration Materials Technology Co., Ltd. With 30 years of dedicated R&D in industrial filter cloths and filtration systems, it has become a leading provider of high-precision graphite powder filtration solutions. Xiamen CITIUS is not only a technological innovator in industrial filter cloths, but also one of the important partners of high-end carbon material manufacturing enterprises at home and abroad Its products are exported to many countries in Southeast Asia, Europe and America.
CITIUS' application cases in the graphite industry cover:
Ultra-fine graphite powder filtration system Used with 10000-mesh grading and dehydration New filtration equipment Achieving high throughput, low residual liquid, and continuous operation;
Vacuum belt filter press matching filter cloth The filter cloth adopts multi-layer weaving and high-strength fiber blended technology, which can withstand high-corrosion acid washing environment and has strong anti-blocking property;
Plate and frame filter press graphite filter cloth Specially designed for high-carbon powder, with strong stripping property, improving filtration efficiency by more than 25%, suitable for tail mud dehydration and mid-stage recovery;
Acid washing and purification system filter cloth Custom-developed high-molecular, high-temperature resistant filter cloth resistant to HF and HCl environments, with high interception accuracy (≤1.5μm), good filter cake stripping and regeneration performance, extending service life and improving filtration accuracy.
Technical highlights:
Nanometer pore size control, suitable for the particle size requirements of 10000-mesh graphite;
Surface modification technology, improving filter cake stripping and reducing residue;
One-stop filtration system design + filter cloth customization service can be provided, suitable for the entire process of flotation-fine washing-grading-drying.
VI. Trend Outlook: "Two-way Rush" of High-end Graphite and High-performance Filter Cloth
With the continuous expansion of industries such as new energy vehicles, energy storage, and new materials, the demand for high-end graphite powder will continue to experience explosive growth. The smaller and purer the graphite product, the greater the challenge to the filtration system. In the future, the graphite industry chain will show the following development trends:
The ultra-fine trend is more obvious From 5000 mesh to 8000 mesh, 10000 mesh, or even 20000 mesh;
Higher purity requirements Especially in the fields of graphene and nuclear energy materials;
Filtration equipment and filter cloth co-evolution Intelligent control, automatic cleaning, and adaptive structure will become mainstream;
Industrial green transformation drives low-energy consumption and high-recovery filtration solutions 。
Companies like Xiamen CITIUS, which master both the core weaving and processing technology of filter cloths and can design complete filtration systems, will play a key role in the high-end graphite deep processing track.
Conclusion
Graphite is not only the cornerstone of the materials industry, but also a symbol of new productivity. In the ultra-fine processing stage that magnifies its value by hundreds of times, Industrial filter cloth plays the role of an "invisible craftsman" that determines purity and efficiency With the increasing market demand for 10000-mesh and even higher-grade graphite products, Xiamen CITIUS is using cutting-edge technology and high-performance filter cloth solutions to help the Chinese graphite industry reach the peak of the global value chain.
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