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High-performance 3A, 4A, 5A, 13X desiccants & industrial adsorbents from a trusted Chinese manufacturer. ISO9001 certified, SGS tested, and globally shipped.

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Who We Are

Xi'an Lvneng Purification Technology Co., Ltd. was relocated to Xi'an from Dalian in November 2004. With more than 20 years of management and development, it has become a key manufacturer of special-type molecular sieves in China.

We specialize in molecular sieves, activated alumina, and other industrial desiccants, serving industries such as petrochemicals, air separation, refrigeration, and high-voltage electrical equipment.

20+
Years Experience
ISO9001
Certified
Global
Shipping
Factory Equipment Molecular Sieve Packaging Laboratory Testing Quality Control

Our Best-Selling Products

Engineered for performance, reliability, and industrial efficiency

13X Molecular Sieve Desiccant

13X Molecular Sieve Desiccant

  • Equilibrium CO₂ Capacity: ≥ 18%
  • Water Capacity: ≥ 27%
  • Chemical Formula: Na₂O·Al₂O₃·(2.8±0.2)SiO₂·(6~7)H₂O
  • Application: Air separation, oxygen/nitrogen generation
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3A Molecular Sieve Desiccant

3A Molecular Sieve Desiccant

  • Size: 1.6–2.5mm, 3.0–5.0mm
  • Bulk Density: ≥0.75g/ml
  • Water Adsorption: ≥21.0%
  • Application: Deep purification, ethanol dehydration
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Carbon Molecular Sieve

Carbon Molecular Sieve (CMS)

  • Color: Black
  • Pore Diameter: 4 Angstroms
  • Function: Air separation (N₂ generation)
  • Form: Impregnated granules, 1.1–1.2mm
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Activated Alumina Balls

Activated Alumina Balls

  • Color: White
  • Shape: Granular
  • Certification: ISO9001
  • Application: High-pore-volume desiccant
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4A Molecular Sieve Adsorbent

4A Molecular Sieve Adsorbent

  • Surface Area: 500–800 m²/g
  • Particle Size: 1–3mm
  • Pore Volume: 0.35–0.45 ml/g
  • Use: General drying, solvent purification
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Molecular Sieve 5A

Molecular Sieve 5A

  • Function: Adsorption & separation
  • Application: Drying solvents, gas purification
  • Form: Pellets, beads
  • Brands: Zeochem, UOP compatible
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Refrigerant Desiccant

Refrigerant Desiccant

  • Type: Molecular sieve beads
  • Form: Packets, bulk
  • Use: HVAC, refrigeration systems
  • Moisture Removal: High efficiency
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Palladium Catalyst

Palladium Catalyst

  • Types: Alumina carrier, metal deoxidizing
  • Function: Oxygen removal, hydrogenation
  • Form: Pellets, granules
  • Applications: Petrochemical, electronics
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Why Choose Our Molecular Sieves?

Engineered for industrial excellence and long-term reliability

High Purity & Quality

SGS tested, REACH certified, and manufactured under strict ISO9001 standards for consistent performance.

Industrial-Grade Durability

High crushing strength, low attrition rate (≤0.1%), and long service life in demanding environments.

Global Supply Chain

25kg bags, moisture-proof packaging, and fast international shipping to over 50 countries.

20+
Years in Industry
50+
Countries Served
ISO9001
Quality Certified
SGS
Tested & Verified

What Our Clients Say

"Thanks for your kind hospitality. Your company is very professional, we will have a nice cooperation in the near future."

— Elane

"Good company with nice service and high quality and high reputation. One of our reliable suppliers, goods are delivered on time with excellent packaging."

— John Lenson

"Through very good communication all problems were solved. Satisfied with my purchase and will order again."

— Alexandra

Frequently Asked Questions

What is a molecular sieve?

A molecular sieve is a porous material (usually a zeolite) that adsorbs gases and liquids based on molecular size and polarity. It's widely used for drying, purification, and separation in industrial processes.

What’s the difference between 3A, 4A, and 5A molecular sieves?

The number refers to the pore size in angstroms: 3A (3Å) for water removal in ethanol, 4A (4Å) for general drying, and 5A (5Å) for larger molecule adsorption like in solvent drying.

Can I reuse molecular sieves?

Yes, most molecular sieves can be regenerated by heating to 250–350°C under vacuum or inert gas to remove adsorbed moisture and contaminants.

What packaging options are available?

We offer 25kg moisture-proof bags, vacuum-sealed packets, and bulk packaging for industrial use. Custom packaging is available upon request.

Get in Touch

For quotes, technical support, or bulk orders, visit our official website to connect with our team.

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