304SS Vacuum Alcohol Precipitation Tank

304SS Vacuum Alcohol Precipitation Tank

Precision Solid-Liquid Separation | Floating-Ball Decanter Technology | GMP & Explosion-Proof Certified


The Alcohol Precipitation Tank (commonly known as an ethanol settling tank) is critical equipment in pharmaceutical production for solid-liquid separation and liquid purification. Manufactured from high-grade SUS304 stainless steel, the unit consists of an elliptical head, a conical bottom, and a high-efficiency agitator. By adding ethanol to the liquid extract—often processed by a vacuum alcohol evaporator—it utilizes the solubility differences of various substances to precipitate non-alcohol-soluble impurities like starch and proteins, effectively refining the medicinal solution.

Core Value Propositions


  • Material Excellence & Compliance: Fabricated from premium SUS304 stainless steel with a mirror-polished interior (Ra ≤ 0.4μm). Equipped with a high-pressure CIP system, it fully meets CGMP and FDA hygiene standards.
  • Intelligent Decanting Design: Features a specialized floating-ball decanter that automatically tracks the liquid level. It stops precisely at the sludge interface, ensuring maximum recovery of clear supernatant without human error.
  • Explosion-Proof Safety: Specifically engineered for ethanol-rich environments, all transmission components utilize reliable mechanical seals and explosion-proof drive systems for total operational security.
  • Superior Thermal Control: The jacketed vessel is designed for chilled brine or cooling water circulation, supporting the low-temperature “freeze-precipitation” required for optimal pharmaceutical clarity.

Primary Application Scenarios


Traditional Medicine Refining: Effectively removes starch, proteins, and non-alcohol-soluble impurities from water-based extracts after vacuum evaporation.

Dual-Direction Precipitation: Highly versatile for both alcohol precipitation of water extracts and water-based precipitation of alcohol extracts to isolate complex solid-phase impurities.

Nutraceutical & Oral Liquid Production: Significantly enhances the transparency and shelf-life stability of botanical extracts, ensuring a premium final product appearance.

Fine Chemical & Dye Processing: Suitable for both room-temperature and cryogenic sedimentation of various industrial suspensions to achieve high-efficiency separation.

Solutions to Critical Technical Challenges


  • Enhancing Product Transparency: Removes micro-impurities and colloidal proteins that bypass traditional filtration, solving the “cloudy liquid” issue in pharmaceutical extracts.
  • Preventing Sediment Clogging: Sticky or hardened residues often block discharge ports. Our system incorporates a steam-assisted softening function to liquefy compacted sludge for rapid cleaning.
  • Eliminating Material Loss: The automatic decanter prevents the accidental discharge of valuable clear liquid, maximizing the yield of active pharmaceutical ingredients (APIs).
  • Maximizing Investment ROI: We offer a “One Agitator, Multiple Vessels” configuration, allowing a single motorized tank to serve multiple static settling tanks, drastically reducing energy and equipment costs.
ModelJC-300JC-500JC-1000JC-1500JC-2000JC-3000JC-6000
Volume (L)30050010001500200030006000
Heat Exchange Area (m²)1.83.04.56.57.58.513.0
Operating Temperature (°C)Normal temperature -15
Jacket Design Pressure (MPa)0.09-0.4
Internal Pressure (MPa)Atmospheric pressure
Stirring Power (kW)0.750.751.52.22.23.05.0
Stirring Speed ​​(rpm)72727272727272
Overall Dimensions (mm)600×800×900800×1000×13501000×1200×17001200×1400×22001300×1500×27001500×1700×29001600×1800×2700

Frequently Asked Questions


Answer: The Vacuum Alcohol Precipitation Tank operates in a sealed environment to prevent solvent loss. This ensures 100% containment of vapors, which is perfect for maintaining a safe workspace and achieving clear purity in your final extract.

Answer: We utilize 304SS to ensure the tank is completely resistant to alcohol corrosion. This genuine material grade prevents metal leaching and ensures the long-term growth of your pharmaceutical-grade production.

Answer: Yes. To master the sedimentation process, our tanks feature a cooling jacket. This allows for precise temperature control, which is an effective way to reduce solubility and ensure a high-yield precipitation of active ingredients.

Answer: The Alcohol Precipitation Tank features a conical bottom. This allows for effortless discharge of sediment and easy cleaning of the interior, keeping your workflow extraordinaryly efficient and sanitary.

Answer: Absolutely. We offer capacities from pilot-scale to large industrial sizes. Our expert engineering team can customize the agitation and vacuum levels to ensure a superb fit for your specific botanical application.

“Still have questions? Contact our technical team for a free consultation.”

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