I. Product Overview This product is a high-performance catalyst-grade silicon dioxide independently developed by Shandong Zhonglian Chemistry Co., Ltd. It is a custom-developed catalyst carrier material designed to address the core pain points in the catalyst industry: "insufficient catalytic activity caused by poor carrier performance, short service life due to poor stability, and low reaction selectivity due to uneven dispersion". Based on precise regulation of nano-scale particle size and pore structure, combined with advanced preparation processes such as sol-gel method and optimized airflow crushing technology, the product not only solves the key problems of traditional silicon dioxide carriers but also possesses excellent load-carrying performance, chemical stability and structural controllability. It is widely used in petrochemical, environmental protection, fine chemical and other fields, and is exported to Europe, America, Southeast Asia and the Middle East and other international markets. II. Core Product Advantages 1. Ultra-high Specific Surface Area and Precise Pore Structure Regulation The product has an ultra-high specific surface area (≥500 m²/g) and a controllable pore structure (pore size range 2-50 nm), which can provide sufficient active sites for the loading of catalytic active components. Its core mechanism lies in the adoption of template method and improved sol-gel process to precisely control the nucleation and growth process of silica crystals, realizing the accurate matching of pore volume and pore size distribution with different catalytic reaction systems. This effectively improves the loading capacity of active components and the mass transfer efficiency of reactants, and significantly enhances the catalytic activity of the composite catalyst. 2. High Purity and Excellent Chemical Stability Strictly adhering to the high-standard requirements of catalyst carrier materials, the product has a purity of ≥99% and extremely low heavy metal content (lead ≤0.001%, arsenic ≤0.0003%), fully complying with national industry standards and international advanced standards. The entire production process adopts inert gas protection and high-purity raw material pretreatment technology, which fundamentally avoids the introduction of impurity ions. It has excellent acid and alkali resistance and high-temperature stability (stable at ≤800℃), and does not undergo chemical reactions with active components or reactants, effectively preventing catalyst poisoning and ensuring long-term stable operation of the catalyst. 3. Excellent Dispersion and Loading Adaptability Relying on the optimized nano-scale particle size distribution (D50=1-10 μm) and surface modification technology, the product has excellent dispersion performance and can be uniformly mixed with various active components (such as platinum, nickel, cobalt, etc.). It can form a strong interaction with the active components, effectively preventing the agglomeration of active components during the reaction process. For different types of catalytic reactions (such as hydrogenation, oxidation, cracking), it can achieve efficient loading of active components, improve the utilization rate of active components by more than 30%, and enhance the reaction selectivity and conversion rate. 4. Flexible Customization Capability It supports personalized customization services for key parameters such as particle size (1-100 μm), specific surface area (200-1000 m²/g) and pore structure (2-100 nm). According to the process characteristics and performance requirements of different catalyst application scenarios (such as petrochemical catalytic cracking, automotive exhaust treatment, pharmaceutical intermediate synthesis), it provides highly adaptable product solutions. For example, for heavy oil cracking catalysts, it can customize large-pore-size silica carriers to improve the diffusion efficiency of macromolecular reactants; for precision catalytic synthesis, it can provide high-purity narrow-distribution products. 5. Full-cycle Technical Service Guarantee It provides one-stop technical support covering pre-sales, in-sales and after-sales. Pre-sales can provide customized sample testing and catalytic performance evaluation services; in-sales, it provides technical guidance on carrier activation and active component loading processes; after-sales, a professional R&D team tracks the application effect, solves technical problems such as catalyst deactivation and performance attenuation, and optimizes product parameters according to user feedback to ensure the maximum exertion of catalyst performance. III. Production Strength Guarantee Shandong Zhonglian Chemistry Co., Ltd., founded in 2022, is a high-tech enterprise focusing on the R&D and production of high-end chemical materials, with independent import and export rights and multiple qualification certificates. The company has 2 core patents in the field of silica preparation, including a super airflow crushing device for silica production and an intelligent optimization system for electrochemical reaction processes, providing solid technical support for product quality improvement. The production base adopts refined process control, equipped with advanced testing equipment such as laser particle size analyzers, specific surface area and pore size analyzers, and X-ray fluorescence spectrometers, and has established 18 full-process inspection procedures covering raw material purification, intermediate synthesis to finished product testing. It has obtained ISO9001 quality management system certification, realizing standardized control of the entire chain from R&D, production to quality inspection. IV. Packaging and Transportation Specifications 1. Standard Packaging Specifications Adopting standardized packaging design that meets the YS/T 1662-2023 precious metal catalyst packaging specification requirements, providing 25kg kraft paper composite bags and 50kg galvanized iron drum packaging options to meet different order quantities and transportation needs. The packaging materials are all made of inert materials to avoid chemical reactions with the product. 2. Professional Moisture-proof and Anti-pollution Design To ensure product stability during transportation and storage, a dual protection solution is adopted: the inner layer uses food-grade PE film with a thickness of ≥0.08mm for moisture-proof sealing, and the outer layer uses high-strength woven bags or galvanized iron drums for anti-collision protection. For export products, vacuum packaging + container shipping is used to prevent moisture intrusion and cross-contamination during long-distance transportation. 3. Storage and Transportation Requirements - Storage conditions: Should be stored in a cool, dry and well-ventilated warehouse, avoiding direct sunlight, high temperature (≥40℃) and humid environment (relative humidity ≤60%), and should be stored separately from strong acids and alkalis; - Shelf life: 36 months under suitable storage conditions; - Transportation attributes: The product is a non-hazardous chemical, supporting sea freight, land freight, air freight and other transportation methods, and can be safely delivered to domestic and foreign customer designated locations. During transportation, it is necessary to avoid violent collision and rain. 4. Standard Labeling Each batch of product packaging is strictly marked with product information such as catalyst carrier attribute, purity, specific surface area, pore size, production batch number and shelf life; at the same time, according to the regulatory requirements of different export markets, multilingual labels and safety data sheets (SDS) can be customized to ensure compliance with local market access standards. V. Applicable Application Fields The product is widely used in the catalyst field, covering multiple industries and scenarios: 1. Petrochemical Field It is used as a carrier for catalytic cracking, hydrotreating and olefin polymerization catalysts. For example, in the crude oil catalytic cracking process, the product loads active components to promote the decomposition of macromolecular hydrocarbons into light oils such as gasoline and diesel, increasing the light oil yield by more than 5%; in the propylene腈 synthesis process, it improves the reaction conversion rate and selectivity. 2. Environmental Protection Field It is applied to automotive exhaust treatment and industrial waste gas purification. As a carrier of ternary catalysts, it loads precious metals to convert harmful gases such as carbon monoxide and nitrogen oxides in exhaust gas into harmless substances; in industrial flue gas denitrification and desulfurization, it improves the efficiency of pollutant treatment and helps enterprises meet environmental protection emission standards. 3. Fine Chemical Field It is used for catalyst carriers in the synthesis of spices, pharmaceuticals and adhesives. In the synthesis of pharmaceutical intermediates and antibiotics, it improves the reaction selectivity and product purity, reducing production costs; in the production of silicone adhesives, it promotes the curing reaction and enhances the bonding strength. 27. New Energy Field It is used as a catalyst carrier for fuel cells and solar cells. In proton exchange membrane fuel cells, it loads platinum-based catalysts to improve battery performance and stability; as a solar cell anti-reflection film material, it reduces light reflection loss and improves photoelectric conversion efficiency. VI. Conclusion Shandong Zhonglian Chemistry's catalyst-grade silicon dioxide is positioned at the core of "enhancing catalytic efficiency, ensuring operation stability and reducing application costs". Relying on innovative preparation technology, strict quality control system and professional technical service team, it provides one-stop catalyst carrier solutions for enterprises in petrochemical, environmental protection, new energy and other industries. The company is committed to promoting the upgrading of the catalyst industry with high-quality products and sincerely welcomes inquiries and cooperation from domestic and foreign customers.