Explore our primary chemical structures and synthetic catalysts customized for global distribution and critical industrial applications.
Shanghai Jiuzhou Chemicals Co., Ltd. is strategically located in Shanghai, the largest economic and industrial development hub in China. Over the decades, Jiuzhou has consistently adhered to the core philosophies of "Quality Control & Continuous Innovation," establishing itself as a premier developer, researcher, and manufacturer of high-purity chemical adsorbents and custom industrial agents.
Our comprehensive product portfolio includes premium-grade molecular sieve powders (including Zeolite 4A), activated alumina, synthetic molecular sieves, alumina catalysts, chemical packing elements, sodium silicates, aluminum hydroxides, and SLES. All chemical processes and manufacturing protocols are strictly certified under the ISO9001:2008 Quality Management System, alongside verified clearances from TUV and SGS.
"With advanced dynamic laboratories and multi-functional automated workshops, we provide global enterprises with customized adsorption products and environmentally friendly process configurations."
Operating high-efficiency manufacturing centers equipped with smart control systems to ensure batch consistency and custom capabilities.
Bridging the gap between raw material synthesis and high-performance industrial outcomes across major sectors.
As a non-phosphate builder, 4A Zeolite replaces Sodium Tripolyphosphate (STPP) to eliminate water eutrophication. Its high calcium ion exchange capacity (≥310 mg CaCO₃/g anhydrous) ensures water softening in diverse temperatures.
Used as a co-stabilizer in PVC formulations, 4A Zeolite acts as an acid scavenger. It neutralizes evolved hydrogen chloride (HCl) during thermal processing, improving PVC stability and preventing discoloration.
Serving as the primary raw material for 3A, 4A, and 5A molecular sieve beads, the powder determines the final desiccant's crushing strength, pore distribution, and adsorption capacity.
Filters heavy metal ions (such as Pb²⁺, Cu²⁺, Zn²⁺, and Cd²⁺) from industrial wastewater. It provides an cost-effective ion-exchange mechanism that supports strict environmental compliance.
At the molecular level, Zeolite 4A is a crystalline alkali metal aluminosilicate with a three-dimensional framework structure of the LTA (Linde Type A) topology. The chemical formula is represented as:
With an effective pore opening of approximately 4 Ångströms (0.4 nm), this structure selectively adsorbs molecules with critical diameters smaller than 4 Å, such as water, while excluding larger hydrocarbons.
Our manufacturing process ensures precise control over the Silicon-to-Aluminum ratio (SiO₂/Al₂O₃ ≈ 2.0). This ratio optimizes the anionic charge of the framework, maximizing the density of exchangeable sodium ions ($Na^+$) and ensuring high calcium binding capacity under varying temperature and pH conditions.
Analyzing geopolitical trends, production pathways, and logistical frameworks that affect industrial sourcing decisions.
We source high-purity sodium silicate and sodium aluminate directly from verified upstream manufacturers. This supply chain integration helps insulate our pricing models from market volatility, protecting large-volume buyers from sudden cost fluctuations.
Operating near the Port of Shanghai allows us to minimize inland transportation costs. We utilize moisture-proof bulk bags (such as 650kg or 1000kg super sacks) and specialized container liners to protect dry powder shipments from maritime humidity.
Every batch undergoes rigorous quality inspections prior to dispatch. We provide complete chemical assay certificates (COA), particle size analysis reports, and mineralogical identification curves to support your compliance requirements.
Shanghai Jiuzhou Chemicals is an active participant in drafting and implementing national and industrial standards for adsorbents.
Adsorption compressed air dryers for general industrial applications.
Activated aluminum oxide specifications for industrial adsorbent applications.
Refrigeration compressed air dryers for standard industrial applications.
Machinery and compressed gas association quality framework.
Modern chemical engineering synthesis standard parameters.
Carbon reduction and eco-efficiency metrics for chemical enterprises.
Our environmental policy prioritizes clean manufacturing and waste reduction. We utilize high-efficiency dust recovery units and closed-loop process water recycling systems to minimize our environmental footprint.
By shifting from energy-intensive batch processing to continuous hydrothermal synthesis, we have reduced carbon dioxide emissions per metric ton of Zeolite 4A by 18%. This aligns with global ESG goals and supports clean industrial practices.
Providing technical and regulatory support to ensure smooth integration into localized production processes.
Our Zeolite 4A formulations are fully registered under EU REACH regulations. We provide chemical data packages to support import compliance for buyers across Western and Northern Europe.
For North American clients, our products comply with EPA regulatory frameworks. We maintain records for materials used in indirect food-contact packaging applications, in line with FDA guidelines.
We provide specialized packaging configurations and dynamic technical support to meet maritime shipping requirements in Japan, South Korea, and Southeast Asia.
Developing advanced frameworks and high-purity synthetic routes for the next generation of industrial adsorbents.
We are conducting research into nano-zeolites with particle sizes below 1 micron. These materials aim to provide faster exchange kinetics for advanced water filtration and polymer stabilization systems.
Our development pipeline includes structural modifications designed to improve the thermal stability of LTA frameworks. This prevents pore collapse during high-temperature regeneration cycles.
We are exploring alternative silica sources, such as agricultural residues like rice husk ash, to synthesize high-purity Zeolite 4A. This process helps lower energy consumption and supports circular economy goals.
Answers to common technical, logistics, and quality control questions from procurement managers and engineers.
A1: Key quality indicators include the Calcium Ion Exchange Capacity (typically ≥310 mg CaCO₃/g anhydrous), particle size distribution (PSD, with a target D50 of 2-4 µm), whiteness (≥95%), and framework crystallinity (≥95%). Lower crystallinity index indicates higher amorphous silica-alumina residue, which decreases overall ion-exchange efficiency.
A2: In PVC processing, thermal degradation releases hydrochloric acid (HCl), which catalyzes further polymer degradation. Zeolite 4A acts as an inorganic acid scavenger, absorbing and neutralizing HCl within its aluminosilicate cavities. This process improves thermal stability when used alongside calcium-zinc organic stabilizers.
A3: Since dry 4A Zeolite powder is highly hygroscopic, we package export shipments in double-layered, moisture-proof bulk bags (PP outer bag with sealed PE inner liner). For extended maritime transport, we recommend utilizing container desiccants and PE protective liners to prevent moisture entry.
A4: Yes. Our manufacturing plants are equipped with classified milling and screening systems. We can customize particle sizes, including narrow-PSD powders with a D50 of 2.5 µm for liquid detergents, or coarser distributions for solid dry-blend formulations.
A5: When stored in its original, unopened packaging in a cool, dry, and ventilated warehouse, 4A Zeolite powder maintains its chemical properties for up to 24 months. If bags are opened, they must be resealed immediately to prevent ambient moisture adsorption.
Browse our full range of molecular sieves, silica gels, and active powders designed for industrial separation processes.
Connect with our sales engineers to request detailed pricing, custom mesh specifications, or packaging requirements. We respond to verified business inquiries within 24 hours.
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