Industrial Borosilicate Solvent Extraction Units
Liquid-Liquid Extraction Units
Goel Glass manufactures turnkey Liquid-Liquid Extraction Units designed for the selective separation and recovery of chemical constituents from aqueous or organic solutions through differential solubility in an immiscible solvent phase. Constructed from high-purity Borosilicate Glass 3.3 and chemically inert PTFE, these semi-batch systems provide zero metallic contamination and complete process visibility.
The feed solution is charged into the extraction vessel while the extraction solvent is gently vaporized inside a lower reboiler vessel. Vapors ascend into a high-surface coil condenser, and pure condensed solvent passes through an overhead reflux splitter into a multi-port manifold. By configuring the manifold valves, solvent can be introduced either at the bottom (for lighter-than-feed solvents) or at the top (for heavier-than-feed solvents), ensuring optimal counter-current phase contact. The enriched extract stream returns to the reboiler where the solvent continuously vaporizes and recycles, concentrating the extracted solute in the reboiler.
Upon completion of the extraction cycle, the reboiler recovers the solvent cleanly overhead into the extraction vessel, allowing both the concentrated solute and recovered solvent to be drained independently via PTFE bottom outlet valves.
| Unit Cat.Ref. | Reactor Capacity | BATH KW | VAPOUR LINE | EXTRACTION VESSEL | CONDENSER M2 |
|---|---|---|---|---|---|
| LLU10 | 10 L | 3.00 | 40mmx1m | 10 L | 0.35 |
| LLU20 | 20 L | 4.00 | 50mmx1m | 20 L | 0.50 |
| LLU50 | 50 L | 6.00 | 80mmx1m | 50 L | 1.50 |
| LLU100 | 100 L | 9.00 | 100mmx1m | 100 L | 1.50 |
Solid-Liquid Extraction Units (Soxhlet Type)
Goel Glass Solid-Liquid Extraction Units operate on the classic Soxhlet percolation principle engineered on an industrial pilot scale. The system preferentially extracts and concentrates soluble compounds, bioactive molecules, or natural products from solid materials using a continuously recycled pure solvent loop.
The solid feedstock is loaded inside a high-porosity glass fiber thimble bag or porous basket within the extraction vessel. Solvent charged in the reboiler is steadily vaporized and delivered to the overhead condenser. The distilled, chilled solvent flows through a reflux divider into the extraction chamber, submerging the solid bed in freshly distilled solvent. Once the desired saturation and extraction cycle is reached, the concentrated extract returns to the reboiler, where solvent continuously distills away, leaving the purified extract behind.
The units are engineered for standard atmospheric and reduced-pressure operation across vessel volumes from 10 L to 100 L.
| Unit Cat.Ref. | Reactor Capacity | BATH KW | VAPOUR LINE | EXTRACTION VESSEL | CONDENSER M2 |
|---|---|---|---|---|---|
| SLU10 | 10 L | 3.00 | 40mmx1m | 10 L | 0.35 |
| SLU20 | 20 L | 4.00 | 50mmx1m | 20 L | 0.50 |
| SLU50 | 50 L | 6.00 | 80mmx1m | 50 L | 1.50 |
| SLU100 | 100 L | 9.00 | 100mmx1m | 100 L | 1.50 |
Schematic Flow: Liquid-Liquid Extraction System (10 L)
Key Engineering Features
- Dual Density Inflow Manifold: Configurable valve routing allows solvent feed from top or bottom depending on phase densities.
- In-Situ Solvent Stripping: Closed-loop solvent distillation and condensate recovery inside the same system.
- Total Corrosion Protection: 100% Borosilicate 3.3 and virgin PTFE contact parts prevent acid and halide pitting.
- High Solvent Recycling Rates: Minimizes expensive solvent consumption by over 95% via internal thermal recycling.
Industrial Applications
- Natural Products & Botanicals: Continuous extraction of alkaloids, flavonoids, and active phytochemicals.
- Biopharmaceutical Partitioning: Aqueous two-phase extraction and washing of fermentation broth intermediates.
- Specialty Chemical Washing: Removing residual catalysts and inorganic salts from synthetic oil phases.
- Cannabis & Hemp Extraction: Pilot and commercial solvent percolation with cold solvent recovery.