Direct from Pingxiang production lines: high-performance random packings, molecular sieves, and inert catalyst support media engineered to withstand extreme reactor thermodynamics, acid environments, and mechanical stresses.
In high-pressure petrochemical reactors, hydroprocessing units, and ultra-fine industrial ball mills, catalyst support media and grinding spheres are critical components that determine plant reliability. Pingxiang Zhongtai Environmental Chemical Packing Co., Ltd., based in the West Section Hi-Tech Industry Park of Pingxiang, Jiangxi, manufactures inert alumina ceramic balls, high-alumina grinding media, and mass transfer packings engineered to eliminate catalyst bed channeling, pressure drop spikes, and downstream silica contamination.
Pingxiang produces a significant portion of the world's chemical packing and industrial ceramics. Zhongtai's integrated access to high-purity alpha-calcined alumina, advanced isostatic pressing machinery, computer-controlled tunnel kilns, and experienced ceramic technologists ensures tight compositional consistency, low leachable silica, and dependable bulk delivery cycles for refineries and chemical plants worldwide.
Alumina ceramic balls are categorized by purity, density, and crystalline microstructure. We utilize alpha-phase corundum (α-Al2O3) to ensure high chemical inertness, compressive strength, and thermal shock resistance across varying operational thresholds.
Formulated from refined aluminosilicate clays and fired above 1280°C. Delivers balanced thermal stability and structural hold-down support for standard gas sweetening, primary distillation, and desulfurization guard beds where silica leaching is not a limiting risk factor.
Engineered for elevated-pressure fixed beds. Exhibits higher bulk density and superior cold crush resistance, mitigating thermal shock spalling in heavy-duty gas processing, molecular sieve hold-down beds, and secondary catalytic hydrotreaters.
Cold isostatically pressed from micro-pulverized calcined alumina. Delivers extreme Mohs hardness (9.0), ultra-low wear loss (≤0.01%), and exceptional kinetic energy transfer for ultrafine wet milling in zirconia, titanium dioxide, paint, and electronic ceramic applications.
The global benchmark for steam methane reformers, secondary shift reactors, and ammonia synthesizers. With SiO2 ≤ 0.2% and Fe2O3 ≤ 0.1%, it eliminates silica migration that poisons downstream catalyst pores in high-temperature steam services.
| Property / Grade | Standard Inert (17-23%) | Intermediate (23-30%) | High Alumina (92%) | Ultra-Pure (99.5%) |
|---|---|---|---|---|
| Al2O3 Content (%) | 17.0 – 23.0 | 23.0 – 30.0 | ≥ 92.0 | ≥ 99.5 |
| SiO2 Content (%) | 70.0 – 76.0 | 65.0 – 72.0 | ≤ 4.0 | ≤ 0.15 |
| Fe2O3 Content (%) | ≤ 1.0 | ≤ 1.0 | ≤ 0.2 | ≤ 0.05 |
| Bulk Density (g/cm³) | 1.35 – 1.45 | 1.40 – 1.50 | 2.25 – 2.45 | 2.05 – 2.15 |
| Water Absorption (%) | ≤ 3.0 | ≤ 2.0 | ≤ 0.02 | ≤ 1.0 |
| Mohs Hardness | 6.5 | 7.0 | 9.0 | 9.0 |
| Cold Crush Strength (1/2" Ball) | ≥ 2.5 kN | ≥ 3.5 kN | ≥ 14.0 kN | ≥ 8.5 kN |
| Operating Temp (°C max) | 1100 °C | 1200 °C | 1500 °C | 1650 °C |
| Acid Resistance (wt loss %) | ≤ 0.5% (ASTM C515) | ≤ 0.5% (ASTM C515) | ≤ 0.08% | ≤ 0.02% |
Procurement directors and EPC plant managers face complex pressures: raw material price swings, shipping bottlenecks, and stringent QA requirements. Zhongtai leverages the geographic and technical manufacturing cluster of Pingxiang to deliver clear supply advantages:
Our facility sits directly adjacent to regional bauxite refining belts and high-grade kaolin clay reserves in Jiangxi. Immediate raw material access eliminates secondary middleman markups and guarantees consistent batch-to-batch chemical purity.
We operate continuous automated tunnel kilns with 16-zone PLC thermal controllers. Precise ramp rates up to 1680°C ensure complete vitrification, uniform grain boundaries, and zero internal micro-fissures that cause premature bed collapse.
Both automated rotational pelletizing and high-pressure cold isostatic pressing (CIP) lines run concurrently. We produce spherical media from 1/8" (3mm) up to 2" (50mm) with strict roundness tolerances and homogenous density profiles.
Direct rail and highway corridors connect Pingxiang to Ningbo, Shanghai, and Shenzhen ports. We handle standard 1000kg flexible intermediate bulk containers (FIBC jumbo bags) and steel drums with export pallets on tight loading schedules.
Procuring industrial ceramic media for petrochemical services requires compliance with global safety, environmental, and metallurgical standards. Zhongtai structures every order around auditable engineering protocols:
Our chemical-resistant ceramic tower packings and bed supports comply with ASTM C515 specifications. We verify acid solubility (<0.5% in boiling sulfuric, nitric, and hydrochloric acids) to prevent structural degradation under harsh conditions.
All ceramic formulations are certified free from SVHCs (Substances of Very High Concern), heavy metal leachable ions (Pb, Cd, Hg, Cr6+), and toxic binders. Shipments to European ports include complete REACH safety documentation.
Every batch leaves our Pingxiang factory with full 3.1 MTR documentation: quantitative X-Ray Fluorescence (XRF) chemical assays, automated Cold Crush Strength (CCT) stats, bulk density records, and water absorption test logs.
We routinely support on-site inspection protocols conducted by SGS, Bureau Veritas, and TÜV. Our Pingxiang facility has completed vendor pre-qualification audits from major East Asian and Middle Eastern state energy corporations.
Alumina balls perform distinct operational duties across chemical, metallurgical, and environmental units. Proper specification avoids costly catalyst migration and localized flow disruptions:
Graded layers (from 1/8" hold-down layers up to 2" bottom support balls) distribute incoming feed evenly while preventing active catalyst pellets from escaping into downstream heat exchangers and pumps.
Ultra-pure 99.5% Al2O3 spheres prevent silica volatilization under high-temperature steam (1100°C+), protecting downstream waste heat boilers and delicate synthesis catalyst matrices from irreversible fouling.
Our intermediate and high alumina support media withstand fluctuating thermal cycles and sulfur dioxide/hydrogen sulfide acid attack within thermal reactors and catalytic converter beds.
92% high-alumina grinding balls deliver optimal grinding efficiency in continuous and batch ball mills, preventing iron contamination in high-end lithium battery cathode materials and sanitary ceramics.
As the chemical processing industry transitions toward decarbonization, process equipment must operate under harsher chemical regimes, deeper thermal cycling, and higher operational cleanliness:
Solid Oxide Electrolysis Cells (SOEC) and high-temperature methane pyrolysis units require bed supports with virtually zero trace metals to prevent poisoning of high-entropy alloy and nickel catalysts.
CO2 absorption and solvent regeneration towers depend on high-surface-area packing and neutral bed hold-downs that will not interact with amine-based solvents (e.g., MEA, MDEA) or accelerate degradation foaming.
Sustainable Aviation Fuel (SAF) and Hydrotreated Vegetable Oil (HVO) hydroprocessing involve aggressive organic acids and moisture. Alumina support balls must maintain structural integrity against deoxygenation acid attack.
Zhongtai is deploying high-speed computer-vision sorting belts in Pingxiang to inspect individual spheres for micro-cracks, ovality, and surface pinholes before final packaging, ensuring high sphericity and consistent bed void fraction.
Procurement and process engineers consult this reference before finalizing sizing specifications, grading schematics, and factory audit checklists:
Full catalog range manufactured in our Pingxiang workshops: carbon graphite random packings, molten metal filters, bio-filter media, and specialized zeolite adsorbents.
To accelerate technical evaluation and receive accurate mill-direct pricing, please include the following parameters in your inquiry:
