Mikrouna's laboratory solvent purification systems deliver contamination-free, anhydrous solvent delivery through a closed-loop dual-column adsorption process — eliminating water and oxygen to sub-ppm levels without the fire risks of traditional sodium-wire reflux methods. Available in 3-, 5-, and 7-channel configurations (SolvPurer A3/G3 through A7/G7), these systems are engineered for organic synthesis, battery electrolyte research, pharmaceutical intermediates, and semiconductor-grade chemistry.
What Is a Laboratory Solvent Purification System?
A solvent purification system is a closed-loop, column-based apparatus designed to remove water, oxygen, and other trace contaminants from common organic solvents at the point of use. Unlike hazardous traditional methods such as sodium-wire distillation or sodium/benzophenone reflux, a modern inert solvent purification system eliminates open-flame operations entirely — a critical safety upgrade for any high-throughput chemistry laboratory or industrial research facility handling flammable reagents.
Our solvent purification solutions are manufactured to the highest safety standards and can be fully customized to match your laboratory's solvent portfolio, spatial constraints, and throughput requirements.
How the Solvent Purification System Works
The operating principle is straightforward and inherently safe. Working gas — nitrogen or argon at a purity of ≥99.99% — pressurizes the stainless steel storage tank (Grade 1.4301 / UNS S30400, 20 L capacity), driving solvent through a corrosion-resistant stainless steel pipeline into a dual-column purification column (Ø100 mm × 700 mm). Each column employs high-capacity catalyst column media engineered for moisture removal and oxygen-free solvent delivery simultaneously. The ultra-pure, anhydrous solvent then exits through a vacuum-evacuated outlet directly into a collection bottle, reactor vessel, or — with fully compatible interface connections — directly into an inert atmosphere glove box. The entire operation runs as a closed-loop system, minimizing solvent vapor exposure and fire risk at every stage.
Key Technical Specifications at a Glance
Models: SolvPurer A3/G3 (3-channel), SolvPurer A5/G5 (5-channel), SolvPurer A7/G7 (7-channel)
Solvent flow rate: <1 L/min per channel
Purification column capacity: ≥800 L per column before regeneration is required
Column dimensions: Diameter 100 mm, Length 700 mm (dual-column configuration)
Construction material: Grade 1.4301 / UNS S30400 stainless steel throughout — pipework, storage tank, and cabinet frame
Piping standard: Stainless steel with ferrule (Swagelok-compatible) fittings for leak-free, corrosion-resistant connections
Control: Manual operation as standard; upgradable to PLC-based automatic control system for integration into automated workflows
Safety enclosure: Integrated flammable safety cabinet on all models
Working gas: Nitrogen or argon, ≥99.99% purity recommended
Storage tank features: Dual-valve shut-off device, customized piping, and dedicated filling port
Compatible Solvent Classes — Industrial Solvent Purification Coverage
One of the most frequently asked questions from B2B procurement teams concerns solvent compatibility. Our organic solvent purification systems are validated for the following solvent classes:
Aromatic and aliphatic hydrocarbons: Pentane, n-Hexane, Cyclohexane, n-Heptane, Toluene, Benzene
Ethers: Diethyl Ether, Tetrahydrofuran (THF), Dimethyl Ether
Chlorinated solvents: Dichloromethane (DCM), Chloroform, Chlorobenzene
Amine solvents: Triethylamine, Pyridine, N,N-Diisopropylethylamine (DIPEA)
Alcohols: Methanol, Ethanol
Other common solvents: Acetonitrile, DMF, DMSO, Acetone
If your process involves a solvent not listed here, contact our engineering team — custom column media formulations are available for specialty or mixed solvent streams, making our platform one of the most scalable industrial solvent purification solutions on the market.
Why Column Adsorption Outperforms Traditional Solvent Drying Methods
Laboratories that have relied on sodium-wire reflux or molecular sieve distillation face three persistent challenges: open-flame fire hazard, inconsistent purity batch-to-batch, and significant operator time per purification cycle. Column adsorption-based solvent drying systems resolve all three:
No open flame or reactive metals — eliminates the primary fire and explosion risk associated with traditional sodium-based drying
Reproducible, sub-ppm moisture removal — catalyst column media delivers consistent HPLC-grade or research-grade purity on every draw
On-demand, continuous delivery — no batch preparation time; solvent is available immediately when the system is pressurized
Closed-loop operation — reduces solvent vapor emissions, improving laboratory air quality and regulatory compliance
Column regeneration service — when purification media is exhausted, Mikrouna provides new refilling and reactivation services, minimizing system downtime
For facilities that also require complementary inert gas management, our gas purification systems provide matched nitrogen and argon purification down to <1 ppm O₂/H₂O.
Application Sectors — Where Solvent Purification System Solutions Are Critical
Contamination-sensitive research and production environments are the primary adopters of automated, column-based laboratory solvent purification systems. Key verticals include:
Battery electrolyte R&D: Lithium-ion, solid-state, and next-generation battery electrolyte preparation requires strictly anhydrous, oxygen-free solvents such as DMC, EC, or DMF. Even trace moisture accelerates electrolyte decomposition and SEI layer instability. Our system is a direct fit for battery automation lines and R&D glove box environments.
Organic synthesis and pharmaceutical intermediates: Reactions involving organolithium reagents, Grignard reactions, or moisture-sensitive catalysts demand HPLC-grade or better solvent quality on every run. The SolvPurer series enables high-throughput synthetic chemistry without bottlenecks at the solvent preparation stage.
Semiconductor and OLED material processing: Ultra-high-purity THF, toluene, and DCM are essential for thin-film deposition and device fabrication. The solvent purification column design ensures particulate-free, moisture-free delivery compatible with cleanroom-adjacent workflows.
Hazardous and toxic substance handling: For laboratories managing carcinogenic or acutely toxic solvents (chlorobenzene, benzene, chloroform), the closed-loop, sealed-cabinet design of the SolvPurer minimizes vapor exposure — supporting COSHH and GHS compliance frameworks.
Catalyst and materials research: Transition metal catalysis, MOF synthesis, and polymer research routinely require anhydrous ether or amine solvents. The multi-channel architecture supports simultaneous multi-solvent purification, keeping pace with parallel synthesis workflows.
Laboratories operating within an inert environment will find seamless integration with our custom glove box solutions, which can be configured with direct solvent inlet ports matched to SolvPurer outlet specifications.
System Selection Guide — Choosing the Right Solvent Purification System
Selecting the correct model depends on four primary factors:
Number of solvents in concurrent use: If your laboratory routinely draws from 3 or fewer solvent types simultaneously, the SolvPurer A3/G3 is the cost-efficient baseline. Facilities running 4–5 active solvent lines should specify the A5/G5. High-throughput synthesis groups or multi-user core facilities benefit from the 7-channel A7/G7 configuration.
Throughput and draw frequency: All models share a flow rate ceiling of <1 L/min per channel with a 20 L tank capacity. For laboratories with sustained high-draw demand, discuss increased tank sizing or parallel unit configurations with our application engineers.
Automation integration: If your facility already operates PLC-controlled equipment or is planning integration into a smart laboratory workflow, specify the PLC upgrade at time of order — retrofitting is possible but more complex post-installation.
Solvent compatibility and column media: Standard column media covers the full compatible solvent list above. Non-standard solvents or mixed-solvent purification requirements should be discussed with our technical team prior to procurement to confirm column media selection.
All models include a flammable safety cabinet as standard, with stainless steel ferrule-fitted pipework designed for gas-tight, leak-free operation. For peripheral containment and safe transfer of purified solvents, explore our glove box accessories range, including compatible transfer vessels and vacuum-rated fittings.
Compliance, Material Standards, and Post-Sale Support
Mikrouna's solvent purification systems are built to comply with the highest safety level requirements for laboratory equipment handling flammable and toxic solvents. Key compliance and quality points include:
Grade 1.4301 / UNS S30400 stainless steel throughout — food-grade and chemical-resistant, suitable for aggressive chlorinated and amine solvent contact
Dual-valve shut-off devices on all storage tank assemblies — preventing uncontrolled solvent release in the event of downstream line disconnection
CE-compliant electrical components and integrated flammable safety cabinet construction
Column media regeneration and refill service — Mikrouna provides both new purification media and reactivation services once existing column capacity is exhausted, ensuring continuity of operation with no need to source third-party consumables
Customization available — solvent channel count, tank volume, cabinet footprint, PLC integration, and solvent-specific column media can all be specified at time of order
Frequently Asked Questions
Q: How do I know when the purification column needs replacement or regeneration?
A: Each dual-column purification unit has a validated capacity of ≥800 L of solvent throughput before media performance degrades below specification. For high-draw laboratories, we recommend tracking cumulative volume dispensed per column. Mikrouna offers both column media refill kits and full reactivation services — contact our after-sales team for scheduling.
Q: Can the SolvPurer system be connected directly to a glove box?
A: Yes. All SolvPurer models feature a vacuum-evacuated outlet port that is compatible with standard inert atmosphere glove box solvent inlet fittings. Direct integration enables oxygen-free, anhydrous solvent delivery into the glove box without manual transfer steps, eliminating a significant contamination risk point.
Q: What working gas is required, and how much is consumed per purification cycle?
A: Nitrogen or argon at ≥99.99% purity is recommended as the pressurization working gas. Gas consumption is primarily used for tank pressurization and is not consumed at a high rate — typical laboratory usage results in low gas cylinder turnover. Exact consumption figures depend on draw frequency and system pressure settings.
Q: Is the system compatible with chlorinated solvents like DCM and chloroform?
A: Yes. The stainless steel (1.4301/UNS S30400) construction and ferrule-fitted piping are selected specifically for compatibility with chlorinated solvents, amine solvents, and other chemically aggressive reagents. Column media formulations are matched to the specific solvent class.
Q: What customization options are available for bulk or OEM procurement?
A: Mikrouna supports customization of solvent channel count, storage tank volume, cabinet dimensions, PLC control integration, and column media selection. Bulk procurement and OEM supply agreements are available — please submit an inquiry with your specification requirements.
Ready to eliminate solvent contamination risk in your laboratory or production line? Our application engineers are available to provide solvent compatibility assessments, system sizing guidance, and custom specification support. Contact our team today to request a quotation or discuss your anhydrous solvent delivery requirements.
