Engineered for high mass transfer, extreme crush strength, and maximum adsorption kinetics. Explore our featured product line.
Shanghai Jiuzhou Chemicals Co., Ltd. is located in Shanghai, the largest economic development city in China. Over the years, Jiuzhou has continuously adhered to the core principles of "Quality Control, Innovation", committing itself fully to the scientific development, testing, research, and high-end manufacturing of premium-grade innovative chemical products. Our diversified portfolio features high-performance molecular sieve powders, synthetic molecular sieves, activated powder, activated alumina, aluminum oxide catalysts, specialized alumina packing, inert ceramic balls, sodium silicates, aluminum hydroxide, zeolite 4A, sodium carbonates, and SLES.
Demonstrating our unwavering focus on international quality standards, all our molecular sieve manufacturing pathways operate in accordance with the ISO9001: 2008 Quality Management System, accompanied by rigorous third-party certifications from TUV and SGS. Our systems provide a robust alternative to high-performance catalysts like Grace molecular sieves, optimized for multi-cycle durability and deep dehydration profiles.
With an active distribution network spanning across the United States, Southeast Asia, Japan, Europe, North and South America, and the Middle East, we enable global energy-saving and environmentally friendly adsorption schemes tailored to modern industrial requirements.
Our operation is built on two simple but strict commitments to engineering excellence.
Redundant production facilities in Shanghai and Wuxi ensure uninterrupted supply chains and prompt global distribution.
Zeolite molecular sieves are crystalline aluminosilicates characterized by uniform three-dimensional pore networks. In systems requiring low-dew-point gas processing, the selection of the correct framework type (e.g., LTA or FAU topologies) decides the efficiency of the entire process loop. Jiuzhou’s advanced synthetic protocols produce zeolites that match or exceed the performance metrics of traditional Grace molecular sieves (such as Sylosiv and Syloid lines) through optimized pore-size distribution and high hydrothermal stability.
By adjusting the silica-to-alumina ratio ($SiO_2/Al_2O_3$) and executing precise cation exchange ($\text{Na}^+$, $\text{K}^+$, or $\text{Ca}^{2+}$), we carefully adjust the effective pore opening of our adsorbents to target specific kinetic diameters. This ensures that co-adsorption is minimized while maximizing the retention of water, nitrogen, carbon dioxide, or volatile organic compounds (VOCs).
| Zeolite Type | Framework Cation | Nominal Pore Diameter | Kinetic Diameter Target | Primary Applications & Equivalency |
|---|---|---|---|---|
| 3A Zeolite | Potassium ($K^+$) | ~3 Å | < 3 Å (e.g., $H_2O$, $NH_3$) | Ethylene drying, ethanol dehydration, insulated glass gas drying. Prevent hydrocarbon co-adsorption. |
| 4A Zeolite | Sodium ($Na^+$) | ~4 Å | < 4 Å (e.g., $CO_2$, $H_2S$) | Air brake systems, closed-circuit liquid drying, refrigerant dehydration, standard desiccant. |
| 5A Zeolite | Calcium ($Ca^{2+}$) | ~5 Å | < 5 Å (e.g., n-paraffins) | PSA oxygen generation, separation of normal/isoparaffins, carbon dioxide removal from natural gas. |
| 13X Zeolite | Sodium ($Na^+$) | ~10 Å | < 10 Å (e.g., mercaptans) | Cryogenic air purification, medical oxygen concentration (VPSA), sour gas sweetening, siloxane removal. |
Crucially, our synthetic molecular sieve powders display high mechanical crush strength, reducing dust formation and pressure drop across adsorption columns—a common issue faced by engineers using lower-grade options. The optimized bulk density and high static water adsorption capacity make our product a top choice for modern gas treatment infrastructure.
In today's volatile raw material market, supply chain resilience is a key factor for global buyers. Jiuzhou’s integration of Factory 4.0 standards across our Wuxi and Shanghai complexes guarantees structural cost advantages and consistent production quality. By using closed-loop distributed control systems (DCS), we monitor key crystallization parameters (pH, silica activity, and thermal gradients) in real-time. This eliminates batch-to-batch variation, ensuring that our products perform reliably in demanding field conditions.
Our facility runs multiple automated production lines with a total footprint of 25,000 square meters. This helps us scale production to meet large orders quickly, maintaining short lead times even when the market is tight. Backed by vertical integration in raw material sourcing (sodium silicate, aluminum hydroxide, and specialty binders), our supply chains are designed to withstand global logistics disruptions and provide stable pricing for long-term partners.
Jiuzhou molecular sieves play a vital role in several industrial sectors, supporting progress in energy efficiency and clean air initiatives:
For Pressure Swing Adsorption (PSA) hydrogen purification, our customized molecular sieves remove trace impurities like carbon monoxide, nitrogen, and methane, achieving high-purity hydrogen (exceeding 99.999%) required for fuel cells and clean energy applications.
During steam cracking, ethylene and propylene must be dried to very low water levels (under 1 ppm) to prevent hydrate formation and catalyst poisoning in downstream polymerization reactors. Our JZ-K1W Activated Alumina and 3A molecular sieves provide reliable moisture control with minimal olefin polymerization inside the adsorbent bed.
Before cryogenic liquefaction of air, carbon dioxide and water must be completely removed to prevent ice blocks in cold boxes. Our 13X series molecular sieves offer high CO2 capacity at low partial pressures, helping to lower energy consumption and prolong operating cycles between regenerations.
In liquefied natural gas (LNG) plants, our sieves dehydrate and sweeten gas streams simultaneously. We protect pipelines against corrosion and liquid phase freeze-outs by targeting hydrogen sulfide, mercaptans, and heavy hydrocarbons.
Jiuzhou is more than a manufacturer—we contribute directly to the standards that define the quality of modern adsorbents.
JB / T 10532-2017
Adsorption compressed air dryers for general use
HG / T 3927-2007
Activated aluminum oxide for industrial use
JB / T 10526-2017
Refrigeration compressed air dryers for general use
T/CGMA 1201-2024
Machinery industry group standards for gas purification
T/HGHX 02-2024
Chemical industry technical specifications for molecular sieve testing
T/CIET 854-2024
International environmental and green chemical process standards
The future of chemical separation technology centers on improving selectivity, reducing carbon emissions during manufacturing, and achieving longer cycle lives. Jiuzhou’s current R&D focuses on several key areas:
Better Air, Better Life — Aligning our industrial success with ecological preservation and clean production standards.
Navigating chemical import regulations requires strict compliance and reliable trace documentation. As an established global exporter, Jiuzhou provides full regulatory compliance across major jurisdictions, including REACH (European Union), TSCA (United States), and regional chemical inventory registrations. Our products ship with comprehensive documentation, including detailed Safety Data Sheets (SDS), certificates of analysis (COA) for every production run, and ISO-certified quality reports.
To support global projects, we offer on-site technical assistance, bed load design optimization, and startup supervision. Our engineers work directly with your team to determine optimal dynamic mass transfer zones (MTZ), select proper gas velocities, and set regeneration cycles. This support helps minimize risk during installation and commissioning, ensuring long-term performance.
Get answers to common technical questions about selecting, using, and maintaining zeolites.
Discover our range of advanced molecular sieve formulations, powders, and specialty products.
Our engineering team is ready to assist you with custom bed designs, pricing inquiries, or compatibility analyses. We typically respond within 24 hours.
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