Direct manufacturer and global exporter of high-precision molecular sieves, premium catalyst supports, and advanced activated carbon formulations engineered for chemical engineering processes.
Gamma alumina serves as a vital structural pillar in industrial heterogeneous catalysis. Thanks to its defect spinel crystal structure, which provides a high specific surface area and a finely adjustable surface acidity, this material is uniquely suited to drive complex chemical transformations.
By using precision sol-gel and precipitation synthesis pathways, our gamma-phase alumina maintains pore volumes ranging from 0.4 to 0.9 cm³/g and surface areas up to 350 m²/g. This guarantees high dispersion of active precious metals (like Pt, Pd, or Co-Mo) for demanding industrial processes.
Controlling coordinate unsaturated aluminum atoms ($\text{Al}^{3+}$) on the surface allows us to adjust weak, medium, and strong Lewis acid sites. This control helps prevent coke formation and prolongs the operational lifespan of the catalyst bed.
By introducing structural promoters like silica ($\text{SiO}_2$), lanthanum oxide ($\text{La}_2\text{O}_3$), or barium oxide ($\text{BaO}$), we prevent phase transformation from active Gamma ($\gamma$) phase to inactive Theta ($\theta$) or Alpha ($\alpha$) phases at temperatures exceeding 800°C.
As global environmental policies drive the transition toward decarbonization, Jiuzhou Chemicals is actively aligning its catalyst development with green chemistry principles.
The roadmap for our next-generation catalyst carriers focuses on four main technological developments:
| Property / Grade Name | JZ-GA-100 (Standard) | JZ-GA-200 (High Surface) | JZ-GA-300 (Thermal Stabilized) | Test Reference Method |
|---|---|---|---|---|
| Al2O3 Content (%) | ≥ 98.5% | ≥ 99.0% | ≥ 95.5% (with ≤4% La2O3/SiO2) | XRF Analysis / ICP-AES |
| BET Specific Surface Area (m²/g) | 180 - 240 | 260 - 350 | 140 - 180 (Aged at 900°C) | N2 Adsorption-Desorption |
| Pore Volume (cm³/g) | 0.45 - 0.65 | 0.70 - 0.90 | 0.50 - 0.70 | BJH Pore Distribution Method |
| Bulk Density (g/cm³) | 0.68 - 0.78 | 0.48 - 0.58 | 0.60 - 0.70 | ASTM D4164 Tap Density |
| Radial Crushing Strength (N/particle) | ≥ 120 | ≥ 90 | ≥ 140 | ASTM D4179 Single Particle |
Our products are formulated to meet the distinct engineering requirements of different regions, ensuring reliable performance in diverse climates and system environments.
Compliance & Ultra-Low Sulfur: Focused primarily on deep hydrodesulfurization (HDS) processes to comply with Euro VI emissions standards and EPA regulations. Our high-purity carriers minimize active metal sintering, extending operational cycles up to 36 months.
Thermal & Chemical Robustness: In high-temperature Claus sulfur recovery units and oil gas processing, our catalysts resist coking and hydrothermal deactivation caused by sour gas contaminants ($\text{H}_2\text{S}$, $\text{COS}$, $\text{CS}_2$) and process upsets.
Industrial & Coal Chemical Plants: Used extensively in coal-to-chemical conversions, industrial air drying, and PSA (Pressure Swing Adsorption) gas separations. Our high crush strength prevents structural collapse, ensuring steady gas flow and minimizing dust formation.
Shanghai Jiuzhou Chemicals Co., Ltd. is located in Shanghai, the largest economic development hub in China. For three decades, Jiuzhou has adhered to the core principles of strict quality control and continuous innovation, specializing in the research, development, and manufacture of premium industrial adsorbents and chemical catalysts.
Our comprehensive portfolio features high-performance molecular sieve powders, active zeolites, activated alumina, aluminum oxide catalyst supports, ceramic packing balls, sodium silicates, aluminum hydroxide, and diverse surfactant agents. All production facilities comply with the ISO 9001:2008 quality management standard, with manufacturing processes certified by TUV and SGS.
Shanghai R&D and Automated Factory
Wuxi Raw Material Refining & Extrusion Facility
Jiuzhou Chemicals is a recognized standard setter for the Chinese chemical and adsorption industry, driving technical progress and product consistency.
Activated aluminum oxide for industrial use standard
Adsorption compressed air dryers for general use
Refrigeration compressed air dryers for general use
Innovative pneumatic machinery purification standard
Advanced chemical adsorbent testing specifications
Eco-friendly green industrial drying & gas separation standards
We design carbon-efficient production routes and recycle process heat to reduce the environmental footprint of catalyst manufacturing worldwide.
Ensuring continuous global chemical production requires a reliable supply chain. Here is how Jiuzhou Chemicals maintains supply resilience and price stability:
Our close proximity to domestic bauxite sources and aluminum hydroxide refineries ensures a stable raw material supply, shielding our partners from global commodity price spikes.
By operating modern production centers in both Shanghai and Wuxi, we optimize manufacturing throughput. This dual-hub system allows us to keep lead times under 15 days, even during periods of heavy demand.
Located near the Port of Shanghai, the largest shipping hub in the world, we offer fast and flexible global transport options, including ocean container, LCL, air freight, and multimodal rail shipping.
Expert answers to common technical, logistics, and process configuration questions regarding Gamma Alumina catalysts and carrier materials.
Additional premium industrial-grade adsorbents, desiccant materials, and customized porous silica gel products for purification systems.
Get a detailed quote within 24 hours. Jiuzhou Chemicals delivers high-quality catalyst solutions tailored to your industrial requirements.
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