Silica, a critical catalyst support material in industrial catalysis, serves as the core carrier for active components. Manufactured through multiple processes including gel and vapor-phase methods, it strictly complies with China's GB/T 30737-2014 "Silica for Catalyst Supports", ISO 13365 international standards, and downstream industry specifications. Zhonglian's silica boasts ultra-high purity (over 99.5%), featuring controlled pore structures (2-100 nm), high specific surface area (100-800 m²/g), and exceptional chemical stability. This provides efficient active site support and reaction medium diffusion channels, making it adaptable to diverse catalytic scenarios.

Table parameters

Application description

The silica used as carrier in Zhonglian catalyst plays a core and auxiliary catalytic role in the field of industrial catalysis by relying on precisely regulated physical and chemical properties, and is suitable for various reaction systems:

1.High-efficiency loading of active components: The high specific surface area and abundant pore structure enable uniform loading of active components such as precious metals (platinum, palladium, rhodium) and metal oxides (copper oxide, zinc oxide), achieving a 20%-30% increase in loading rate. This prevents active component agglomeration and ensures stable catalytic efficiency. For instance, in automotive exhaust purification catalysts, it enables uniform dispersion of platinum group metals, boosting NOx and CO conversion rates to over 95%.
2.Reaction selectivity optimization: By regulating pore size distribution, the target molecules in catalytic reactions can be screened and side reactions suppressed. In the field of fine chemical industry, when used for styrene oxidation reaction, the carrier with 30-50nm pore size can increase the selectivity of the target product benzaldehyde to 88%, which is 15% higher than that of ordinary carriers.
3.Chemical stability guarantee: under the reaction conditions of acid and alkali environment (pH 2-11) and high temperature (≤800℃), it does not react with active components and reaction medium, and has high mechanical strength, which can avoid the breakage of catalyst in fixed bed and fluidized bed reaction, and the service life is extended to 3-5 years.
4.Widely applied in scenarios: covering petrochemicals (catalytic cracking, hydrotreating), environmental catalysis (tail gas purification, wastewater treatment), fine chemicals (organic synthesis, pharmaceutical intermediates preparation), and energy fields (fuel cell catalysts, photocatalysis). For instance, in heavy oil hydrosulfurization catalysts, the carrier enables a desulfurization efficiency of 99.9%, meeting China VI fuel standards. In photocatalytic CO₂ reduction reactions, it enhances the separation efficiency of photogenerated charge carriers and increases methane yield by 40%.

Factory advantages

As a leading enterprise in China's silica-based catalyst carrier sector, the company has dedicated over two decades to developing functional silicon materials. It holds 8 patented technologies and operates a GMP-certified production facility. Equipped with advanced instruments including a fully automated BET (BET) pore structure analyzer and high-pressure compressive strength tester, the company has established a comprehensive 32-point quality control system covering raw material purity testing to finished product performance evaluation. Certified under ISO 9001 Quality Management System and ISO 22000 Environmental Management System standards, every batch of products maintains consistent performance quality.
Core advantages and highlights:

•Customization technology capability: we have a professional catalytic material research and development team, which can customize the carrier scheme of pore structure, specific surface area and surface modification according to the downstream catalytic reaction type and reaction conditions;
•Precise quality control system: using homologous high purity quartz sand raw material, through the automatic production line to achieve accurate control of particle size and pore structure, the difference of specific surface area between batches is less than 5%, heavy metal content fluctuation is less than 0.01mg/kg;
•Industry adaptation experience: It has provided customized carriers for many large domestic petrochemical enterprises and environmental protection catalytic enterprises. Its products are suitable for more than 20 catalytic scenarios such as automobile exhaust purification, petroleum hydrogenation, photocatalysis, etc., and have been exported to Europe, America, Southeast Asia and other countries and regions.

Packing for shipment

•Standard packaging: 20/25kg sealed PE inner film bag + outer kraft paper bag (powder type);
•Storage and transportation requirements: store in a cool, dry and ventilated place, avoid mixing with strong acid and alkali substances, shelf life 24 months; non-hazardous chemicals, support domestic land transport, sea transport and international air transport;

Frequently Asked Questions

Q: Can silica be modified on the surface for catalyst support?
A: Yes. We can carry out surface hydroxylization (to enhance the loading capacity of active components), silane coupling agent modification (to enhance the compatibility with organic catalysts), metal ion doping (to assist catalysis) and other surface treatments according to customer needs. After modification, the binding force between the carrier and active components is increased by more than 30%.
Q: How to determine the appropriate carrier parameters (e.g., pore size, specific surface area)?
A: Our technical team will develop 3-5 parameter configurations based on your specified catalytic reaction type (e.g., "NOx reduction from automotive exhaust"), active component type (e.g., "platinum-palladium-rhodium alloy"), and reaction conditions (e.g., "high-temperature 400-600°C"). These configurations will be validated through pilot-scale experiments to confirm catalytic efficiency, ultimately determining the optimal support parameters.
Q: Does the product meet the special standards of petrochemical, environmental protection and other industries?
A: Yes. Our products comply with GB/T 30737-2014 "Silica for Catalyst Carriers" (petroleum and chemical industry standard) and meet the compliance requirements of downstream industries.
Q: If you need to adjust the parameters after small batch trial, do you need to redevelop?
A: No need for redevelopment. Our production line has the ability to adjust flexibly, and the parameters such as aperture and specific surface area can be adjusted quickly on the basis of the original scheme. The cycle from pilot test to mass production can be shortened to 7-10 days, reducing the R&D cost of customers.

Qualification Honor

•FSSC22000
•ISO22000：2018
•ISO9001：2015
•SHC HALAL
•OU  KOSHER
•FDA attestation 
•FAMI-QS
•SEDEX
•Food additive production license
•Feed additive production license
•National high-tech enterprise
•Specialized and innovative enterprises in Guangzhou
•17 patents from the State Intellectual Property Office