China Molecular Sieve Manufacturers, Suppliers and Factory - Molecular Sieve Price

Excellent Molecular Sieve Manufacturing Factory

Shandong Xunda Chemical Group Co., Ltd. is a factory specializing in the production of arsenic remover, which play an important role in the field of environmental protection. Our factory has advanced production equipment and technology, and can produce high quality, high performance sphere /strip Molecular Sieve products.We can formulate catalysts with different performance indexes that on your requests.

Why Choose Us

Professional R&D team

Our factory has a professional R&D team and after-sales service team, responsible for the development, optimization and upgrading of catalysts.

Production Capacity

Our company has three most advanced producrion lines of catalyst,with an annual output of 9,500 tons of various catalysts to meet the needs of different users.

Global Sales

The products are exported to the Middle East, Southeast Asia, East Asia, North America and Europe, and are well received. In addition, the company has broken through the countries where it only exported products in the past and exported complete sets of image technology to the Middle East and the CIS and regions.

Patent Certification

In recent years, the company has developed more than 20 high-tech projects, among which 5 have been listed as Star Fire projects by the Ministry of Science and Technology, 2 have been listed as key torch plans by the country, and participated in formulating 15 national standards and 1 industry standard. There are 57 patent applications for national patents, and 3 have won national-level awards.

Molecular Sieve 3A
XUNDA 3A Molecular Sieve is a type of alkali aluminosilicate, which can adsorb molecules with a critical diameter of no more than 3Å.We can customize the content, shape and specifications of the
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Molecular Sieve 4A
XUNDA-Molecular Sieve 4A is a kind of alkali aluminosilicate.able to adsorb molecules with their critical diameters no more than 4Ǻ.We can customize the content, shape and specifications of the
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Molecular Sieve 5A
Molecular sieve 5A can adsorb molecules with their critical diameters no more than 5A.We can customize the content, shape and specifications of the products according to your needs.We will provide
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Molecular Sieve 13X
XUNDA-Molecular Sieve 13X is used for common commercial gas drying, purification of the feedstock of air separation plant.We can customize the content, shape and specifications of the products
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Types of Molecular Sieve

Zeolite Molecular Sieve 3A Adsorbents
XUNDA-3A molecular sieve is a kind of alkali aluminosilicate.able to adsorb molecules with their critical diameters no more than 3A.

Zeolite Molecular Sieve 4A Adsorbents
Molecular sieve 4A is a kind of alkali aluminosilicate, able to adsorb molecules with their critical diameters no more than 4Ǻ. It can adsorb H2O, NH3, H2S, CO2, C2H5OH, C2H6, C2H4, C3H6, etc.

Zeolite Molecular Sieve 5A Adsorbents
It is mainly used in air separation for O2 production to adsorb H2O, CO2 and acetylene in air, or used in the drying and sulfur removal of gases and liquids, or in PSA plant for H2-N2 and CH4 separation to purify H2, or in O2-rich plant for N2-O2 separation, or in oil dewaxing plant to separate n-alkanes

Zeolite Molecular Sieve 13X Adsorbents
13X is used for common commercial gas drying, purification of the feedstock of air separation plant (to remove H2O and CO2) as well as sulfur removal (to remove H2S and COS) from liquid hydrocarbon and natural gas.

Advantages of Molecular Sieve

High adsorption capacity

Molecular sieves have an excellent high surface area, allowing them to adsorb large amounts of molecules on their surfaces.

Selective adsorption

The uniform pore sizes enable them to selectively adsorb specific molecules while excluding others, making them highly effective for separation and purification processes.

Regenerability

They can be regenerated and reused multiple times by heating them to release the adsorbed molecules, making them a cost-effective solution for many applications.

Stability

They are highly stable under a wide range of temperatures and pressures, allowing them to be used in demanding industrial conditions.

The Difference Between Zeolite and Molecular Sieve

The chemical composition is different. The main chemical composition of is sodium aluminosilicate, while molecular sieves are crystalline silicates or aluminosilicates, which are formed by connecting silicon-oxygen tetrahedra or alumino-oxygen tetrahedra through oxygen bridges.

With different characteristics, zeolite has a glass-like luster and can re-absorb water or other liquids. Molecular sieves have the advantages of high adsorption capacity and strong thermal stability that other adsorbents do not have.

The molecular sieve is a powdery crystal with metallic luster, the hardness is 3 to 5, and the relative density is 2 to 2.8. Natural zeolite has color, synthetic zeolite is white, insoluble in water, thermal stability and acid resistance increase with the increase of SiO2/Al2O3 composition ratio.

Applications of Molecular Sieve

Petroleum Industry

In the petroleum industry, molecular sieve plays a critical role in purifying hydrocarbon streams by removing water and other contaminants.

Gas Stream Purification

Molecular sieve is also essential for purifying gas streams in various industrial applications. The ability of molecular sieve to adsorb water at low temperatures makes it ideal for this high-demand application.

Chemical Laboratories

Molecular sieve is commonly used in laboratory drying systems to maintain a moisture-free environment, ensuring accurate and repeatable results.

Liquid Natural Gas (LNG) Plants

In LNG plants, molecular sieve is indispensable for drying natural gas before it undergoes the liquefaction process. By using molecular sieve, LNG plants can effectively remove water and other impurities, ensuring a seamless transition from gas to liquid.

Pharmaceutical Industry

Molecular sieves are commonly used in air and gas drying systems to effectively remove moisture, ensuring a clean and dry environment for pharmaceutical manufacturing.

Molecular Sieve Production Process

Preparing the Base Materials
The first step in creating a molecular sieve involves preparing the base materials, typically a zeolite compound. Start by sourcing high-quality zeolite, which forms the foundation for the sieve’s porous structure. Depending on the type of sieve, you may need to mix the zeolite with binders and other additives to enhance stability and performance. Blend the mixture carefully to achieve uniformity, a critical factor for maintaining consistent pore sizes.

Synthesizing the Molecular Sieve
Once the base materials are ready, the next step is to synthesize the molecular sieve. This process involves shaping the material into its desired form using a specialized mold or extrusion technique. After shaping, the material undergoes high-temperature treatment in a furnace. This stage triggers crystallization, solidifying the sieve’s porous structure. Maintaining precise temperature control during this process ensures maximum performance and durability.

Drying and Activation of the Molecular Sieve
After synthesis, the sieve must be dried and activated to function effectively. This step involves carefully heating the sieve to remove any residual moisture that could hinder its adsorption capabilities.

Testing and Quality Assurance
The final step is rigorous testing to confirm the sieve’s effectiveness. This includes inspecting pore sizes, evaluating adsorption capacity, and verifying structural integrity.

Molecular Sieve Safety Requirements

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Methods and materials for containment and cleaning up

Use appropriate tools to put the spilled solid in a convenient waste disposal container. Dispose of material according to local and regional requirements.

Conditions for safe storage, including any incompatibilities

Suitable for any general chemical storage area. Keep container tightly closed. Do not store super sacks outside; ultraviolet radiation and other adverse conditions will negatively impact its integrity and may eventually cause the bag to fail.

Appropriate engineering controls

Use process enclosures, local exhaust ventilation, or other engineering controls to limit airborne levels. Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

Packaging and Delivery

Packaging Details	Jumbo bag or steel drum package
Port	Shanghai,Ningbo,Shenzhen,Qingdao
Selling Units:	Single item
Quantity (kilograms)	>1000

Other Services

Payment Methods

T/T、L/C、D/A.

Payment Terms

Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

Delivery Time

The exact time is according to actual situation ,such as final destination, and transport way, etc.

Customized Services

We can customize the content, shape and specifications of the products according to your needs, and ensure that the products are within the qualification standard.

MOQ

The minimum starting order is one ton.

Shipping method

We provide sea method.

Samples provided

We will provide free samples, you will only pay the express fee, we will start sample after received the express fee.

FAQ

Q: How many times can molecular sieves be reused?

A: The number of times molecular sieves can be reused depends on the type of sieve, the application, and the regeneration process. Properly regenerated sieves can be reused multiple times.

Q: How long do you leave molecular sieves in?

A: The manufacturers of the molecular sieves recommend replacing the sieves after around 40,000 operating hours. Our operating experience shows, however, that the molecular sieves can be used for significantly longer depending on the purity of the gas, the number of cycles and the dimensioning of the system.

Q: Do molecular sieves need to be activated?

A: Yes, to function effectively, molecular sieves must first undergo proper activation. Proper activation involves heating the sieves to a specific temperature to eliminate adsorbed moisture or impurities. This process ensures their high absorption and filtration efficiency.

Q: What is the shelf life of a molecular sieve?

A: Life span of the molecular sieve is 5~8 years for ZMS (zeolite molecular sieve for oxygen production) and 6~10 years for CMS (carbon molecular sieve for nitrogen production) under standard working conditions and scheduled maintenance for all parts.

Q: What does mesh mean in molecular sieves?

A: A molecular sieve is a material with pores (voids or holes), having uniform size comparable to that of individual molecules, linking the interior of the solid to its exterior. These materials embody the molecular sieve effect, the preferential sieving of molecules larger than the pores.

Q: What is the difference between activated carbon and molecular sieve?

A: Molecular sieves are ideal for gas separation and purification processes, especially when targeting specific molecules. In contrast, activated carbon is best suited for air purification, water treatment, and odor control applications, where adsorption of gases and odors is more critical than moisture control.

Q: What is the difference between 4A and 3A molecular sieves?

A: 3A is the preferred Molecular Sieves adsorbent for the commercial dehydration of unsaturated hydrocarbon streams. 4A is the preferred Molecular Sieves adsorbent for the static dehydration in a closed gas or liquid drying system.

Q: How do you clean molecular sieves?

A: molecular sieve uses dry gas as the regenerative gas, influenced by the blowdown of regenerative gas, the molecular sieve removes water and undergoes regeneration.

Q: How to check if molecular sieves are activated?

A: Molecular sieves must be activated (dried) before use. To check if molecular sieves are dry, you may put a bit in the palm of your hand and add a touch of water. If they generate a good amount of heat, they are dry.

Q: What is the difference between molecular sieve and silica gel?

A: Molecular sieve has a higher rate of adsorption, resulting in faster moisture removal when compared with similar quantities of silica gel. Free moisture fits into the uniform pores of molecular sieve at a higher rate than in silica gel. Silica gel is commonly used in packaging, pharmaceuticals, and electronics to control humidity and protect against corrosion or spoilage.

As one of the most professional molecular sieve manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy high-grade molecular sieve from our factory.

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