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Molecular sieves

4A Molecular Sieve Powder

4A molecular sieve powder is NaA molecular sieve powder, the hydrate of crystalline silicon aluminate metal salt. 4A molecular sieve powder has the characteristics of stable quality, moderate particle size, high crystallinity, made of formed products with
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Description
4A Molecular Sieve Powder Properties
What is 4A Molecular Sieve Powder ?
The chemical composition of 4A molecular sieve powder is mainly silicate and aluminate, in which the atomic ratio of silicon and aluminum is about 4:1, which is also why it is called 4A molecular sieve powder. Its crystal structure comprises silicate and aluminate tetrahedrons, which form a three-dimensional pore structure by sharing oxygen atoms. The pore diameter of 4A molecular sieve powder is mainly in the range of 4 ranges, so it can adsorb and separate substances of similar molecular size. 4A molecular sieve powder has many unique properties. First, it has a high level of thermal stability and can be used in high temperatures. Secondly, it has excellent adsorption and desorption properties and can adsorb and separate molecules of specific sizes. In addition, 4A molecular sieve powder has good hydrothermal stability and anti-toxicity and can maintain stable performance in certain impurities.

TRUNNANO is a trusted global supplier of 4A Molecular Sieve PowderFeel free to send an inquiry to get the latest priceif you would like to buy in bulk.

Technical Parameter of 4A Molecular Sieve Powder:
Item Type Unit 4A-5 Powder 4A Powder 4A-D Powder nm-A
Static H2O Adsorption % ≥ 27 ≥ 27 ≥ 26.5 ≥ 26.5
Package Moisture % ≤ 21 ≤ 21 ≤ 21 ≤ 21
pH-value   ≤ 11 ≤ 11 ≤ 11 ≤ 11
Bulk Density g/ml 0.62-0.68 0.70-0.75 0.77-0.83 ≤ 0.65
Screen Residual % ≤ 0.5 ≤ 0.5 ≤ 0.5 ≤ 0.5
D50 um 1-3 3-5 7.5-9.5 < 1 (SEM)
700℃ Static H2O Adsorption % ≥ 27 ≥ 27 ≥ 26.5  


Applications of 4A Molecular Sieve Powder:

Industrial catalysis
As the main carrier material of catalyst, 4A molecular sieve powder has been widely used in industrial catalysis. It can support a variety of metal ions, such as copper, zinc, manganese, etc., to form a catalyst with specific catalytic properties. The pore structure of 4A molecular sieve powder can provide efficient diffusion and reaction channels, giving the catalyst excellent activity, selectivity, and stability. In many organic reactions, such as alkylation, isomerization, and disproportionation, the 4A molecular sieve powder catalyst has shown excellent catalytic performance. In addition, 4A molecular sieve powder can also be used as an auxiliary catalyst, combined with other catalysts, to improve the overall catalytic performance.
Gas separation and adsorption
4A molecular sieve powder has a regular pore structure and highly dispersed active sites, which can adsorb and separate molecules of specific sizes. 4A molecular sieve powder can separate and purify oxygen, nitrogen, hydrogen, and other gases in gas separation. Due to its excellent adsorption and desorption properties, 4A molecular sieve powder can achieve efficient gas separation at lower operating temperatures, reducing energy consumption. In addition, 4A molecular sieve powder can also be used to remove impurities in gaseous and liquid media, such as water, carbon dioxide, and hydrogen sulfide. In adsorption, 4A molecular sieve powder can remove harmful substances in the air, such as organic volatile substances such as formaldehyde and benzene, and hazardous gases like ammonia, hydrogen sulfide, and hydrogen.
Environmental protection
4A molecular sieve powder is also widely used in environmental protection. It can be used for waste gas treatment and desulfurization and denitrification processes to remove harmful substances in the air, such as sulfur dioxide and nitrogen oxides. The adsorption properties of 4A molecular sieve powder make it an ideal environmental protection material, which can efficiently purify exhaust gas emissions and protect the environment.
Petrochemical industry
4A molecular sieve powder is also widely used in the petrochemical industry. It can be used as a carrier material for catalysts to improve the efficiency and yield of petrochemical processes. In addition, 4A molecular sieve powder can also be used for adsorption separation and purification of petroleum products, such as gasoline,  lubricating oil, and so on. It can adsorb and separate harmful substances and improve the quality and stability of petroleum products. In addition, it can also be used as a thickener to increase the consistency or density of water or oil.


Production Method of 4A Molecular Sieve Powder:
Preparation of raw materials: It is necessary to prepare raw materials such as silicate, aluminate, ammonium salt, alkali metal or alkaline earth metal hydroxide, and the appropriate amount of water and other solvents.

Synthesis steps: the silicate and aluminate are dissolved in the solvent, adding an appropriate amount of template agent and other additives to adjust the chemical composition and properties of the solution, stirring, and crystallization to form a precursor solution.

Precursor filtration washing: the precursor solution is filtered to remove impurities and unreacted raw materials to obtain pure 4A molecular sieve powder.

4A molecular sieve synthesis: The pure precursor powder is synthesized by crystallization under a certain temperature and pressure to obtain 4A molecular sieve powder.

4A molecular sieve treatment: It is a synthesized 4A molecular sieve that is processed at high temperatures to eliminate an organic agent as a template and alter its physical characteristics, like the specific surface area as well as the volume of the pore.


Storage and transportation: Store the produced 4A molecular sieve powder in a dry and ventilated environment and avoid mechanical or moisture damage while taking appropriate protective measures to ensure its quality and performance are not affected.


Packaging of 4A Molecular Sieve Powder
25kg carton, lined with PE bag
55kg gallon sealed steel drum
Customized different packaging according to customer requirements

4A Molecular Sieve Powder supplier

Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.

If you are looking for high-quality 4A Molecular Sieve Powder, please feel free to contact us and send an inquiry. ([email protected])


4A Molecular Sieve Powder Properties

Other Names N/A
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Appearance NA
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Solubility in H2O N/A
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4A Molecular Sieve Powder Health & Safety Information

Signal Word N/A
Hazard Statements N/A
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Transport Information
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