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Silica Alumina Gel (also known in industrial environments as alumina-silica bead desiccants) is a chemical compound consisting of a hybrid matrix of silicon dioxide ($SiO_2$) and aluminum oxide ($Al_2O_3$). This composition optimizes the pore framework to provide excellent water-resistance and high adsorption capacity. While typical silica gel (weakened by liquid water) decrepitates and shatters when exposed to liquid droplets, the incorporation of aluminum atoms reinforces the structural integrity of the gel matrix.
Our flagship JZ-SAG Alumina Silica Gel is characterized by a pore diameter ranging from 2.0 to 3.0 nm, a high specific surface area exceeding 650 m²/g, and a distinctive resistance against capillary pressure surges. This makes it an ideal buffer layer in heavy-duty gas drying installations.
The catalytic and physical behaviors of Silica Alumina Gel are governed by the ratios of $SiO_2$ and $Al_2O_3$. The acid-site concentration, which is derived from the isomorphic substitution of $Al^{3+}$ for $Si^{4+}$ in the tetrahedral silicate grid, determines the gel's capabilities. Our products offer a customized balance between adsorption capacity and chemical stability.
Established in 1994, Shanghai Jiuzhou Chemicals Co., Ltd. is located in China's primary economic and trading center, Shanghai. We have spent decades adhering to our core principles of Quality Control and Innovation, establishing a solid footprint in global markets.
Our production operations are divided between two major manufacturing centers: the Shanghai Factory and the Wuxi Factory. Equipped with automated, multi-functional production lines and dynamic simulation testing chambers, we ensure consistent product quality across all batches.
Every shipment is audited and verified at our central analytical laboratory, which is equipped with XRD spectrometers, BET surface area analyzers, and mechanical strength testers. Our products meet or exceed standard global regulations, having successfully obtained ISO9001:2008, TUV, and SGS certifications.
Our Wuxi factory serves as the main production center for molecular sieves and structural catalyst carriers. By integrating chemical synthesis, hydrothermal crystallization, high-temperature calcination, and automated packaging, the plant can scale production to meet the requirements of international engineering firms.
Understanding the differences in pore structures and dynamic properties is essential when selecting the appropriate adsorbent for your chemical process.
| Property Parameter | Silica Alumina Gel (JZ-SAG) | Standard Silica Gel (JZ-CSG) | Activated Alumina | Molecular Sieve (4A / 13X) |
|---|---|---|---|---|
| $Al_2O_3$ Composition (Wt%) | 2.0 - 8.0 % | < 0.2 % | > 92 % | Aluminosilicate Lattice |
| Water Resistance | High (Anti-decrepitation) | Low (Cracks in contact with liquid) | Excellent | High (But subject to hydrothermal aging) |
| Specific Surface Area ($m^2/g$) | 650 - 780 | 700 - 820 | 300 - 360 | 800 - 1000 |
| Adsorption Capacity at RH 60% | > 35% | > 36% | > 18% | > 22% (Highly selective) |
| Primary Application | Buffer Desiccant for Compressed Air & Gas | Packaging Moisture Control & Instrument Drying | Catalyst Support, Fluoride Removal | Deep gas drying (dew points < -70°C) |
Shanghai Jiuzhou Chemicals is an industry standard-setter. We play a key role in drafting and defining Chinese national and industrial standards for desiccants, adsorbents, and compressed air systems.
Adsorption compressed air dryers for general use. Standardized parameters for desiccant service life and dew point stability.
Industrial activated alumina testing standards. Outlines pore volume, crushing strength, and particle size distribution guidelines.
Refrigeration compressed air dryers for general use. Established thermodynamic guidelines for refrigerant-based systems.
Specifies requirements for energy efficiency, performance metrics, and life cycle assessments in air-drying systems.
Quality testing parameters for synthetic chemical adsorbents and composite alumina-silica mixtures.
Environmental standards for industrial carbon footprint calculation in inorganic chemical manufacturing.
Our products are engineered to protect downstream processes from water contamination, trace acid contamination, and catalyst deactivation.
In natural gas extraction, Silica Alumina Gel functions as a buffer layer to protect molecular sieves. It handles liquid water carryover, preventing hydrothermal damage to the molecular sieve beds and maintaining pipeline gas dew points.
Used for drying and purifying liquid hydrocarbons, including liquefied petroleum gas (LPG), propane, butane, and light fractions. Its stable pore structure resists clogging and minimizes coke formation.
Installed in heatless or heated regenerative compressed air dryers. In these systems, silica alumina gel provides low pressure drops, resists attrition, and maintains reliable outlet dew points under variable flow rates.
We are dedicated to sustainable chemical manufacturing. Guided by our corporate philosophy of "Better air, Better life," we have integrated energy-saving systems across our factories, reducing the carbon footprint of our calcination and activation operations.
Our commitment extends beyond green manufacturing to the long-term reliability of our products. By extending the operational life of our desiccants, we help reduce raw material consumption and minimize industrial waste at municipal treatment plants.
Each batch of Silica Alumina Gel undergoes a series of testing procedures before being cleared for export. We evaluate:
Our logistical operations ensure dispatch, using moisture-proof container liners and double-walled metal drums to preserve product quality during transport.
Get expert insights on the selection, operation, and regeneration of silica alumina gel desiccants.
Explore our complete range of high-efficiency desiccants and catalysts for global shipping and chemical processes.
Our engineering team can assist you with product selection, pore size design, and process optimization. We respond to all requests within 24 hours.
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