Technological principle
After adding material in the lab scale crystallizer, cryogenic circulating fluid is injected through the jacket, the material is fully cooled and crystallized under the stirring action, the separated material is put into the filter through the bottom valve of the kettle body, and the material filter cake is obtained by vacuum filtration. The mother liquor flows through the pipe to the mother liquor receiving pipe tank. After the cake is removed, the mother liquor can be transferred to the crystallizing kettle by pipeline, and the heating function of the heating and refrigeration cycle is turned on to concentrate the mother liquor and distill it. After concentration, the mother liquor can be re-crystallized and filtered in the crystallizer to obtain the recovered material.
Products Pictures
Products Specifications
| Model | GK-50L | ||
| Stirring tank | Net volume 50L | ||
| Parts in contact with the materialis SS316; The rest is SS304 | |||
| magnetic seal | |||
| Stirring power: 750W, frequency conversion speed regulation; |
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| Circulating heating of jacket, 70mm heat insulation layer outside the jacket; | |||
| One pressure gauge and temp sensor | |||
| One inlet, DN15, with one ball valve; | |||
| One gas proctection port, DN15, with one ball valve; | |||
| Inlet and outlet of jacket DN25. | |||
| Condenser | Heat exchange area 1m2 | ||
| Material:Stainless steel 304 | |||
| Refrigerant import and export DN20 | |||
| Filter tank and filter | Φ400×200mm(25L) | ||
| 50 um filter plate + filter cloth (the precision can be customized) | |||
| Vacuum insulation. | |||
| With observation window | |||
| Collection tank | Volume:30L | ||
| Material:Stainless steel 304 | |||
| With observation window | |||
| Mother liquor tank | Volume:30L | ||
| Material:Stainless steel 304 | |||
| With observation window | |||
| Controller box | Explosion-proof controller and motor | ||
Key Components
The lab scale crystallizer main cludes following components:
1. Stirring Tank
• Material: Glass or stainless steel (316L) for corrosion resistance
• Design: Jacketed for temperature control (±0.5°C accuracy)
• Agitation: Adjustable-speed stirrer (PTFE or stainless steel impeller)
2. Condenser
• Efficient Cooling: Vertical or coiled design for optimal vapor condensation
• Material: Borosilicate glass or stainless steel
• Coolant Options: Water, glycol, or cryogenic circulation
3. Filter Tank & Filter
• Filtration Type: Vacuum or pressure-assisted (0.2–10 µm membrane options)
• Material: Chemical-resistant PTFE, PP, or stainless steel
• Quick-Release Design for easy sample collection
4. Collection Tank
• Capacity: Scalable from 1L to 20L
• Graduated Marks for precise volume measurement
• Leak-Proof Seal to prevent solvent loss
application of lab scale crystallizer
• Pharmaceuticals: API crystallization, polymorph screening
• Chemicals: Purification, salt formation, nanoparticle synthesis
• Food & Materials: Sugar crystallization, specialty coatings
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