Low Temperature Subcritical Herbal Extraction Machine

 Low Temperature Sub-critical Herbal Extraction Machine

Subcritical Herbal Extraction Machine Description

Low temperature sub critical herbal extraction machine is widely applied in extract oils from plant, leaves, seed, woods. Apply to extract essential oils, plant protein, plant pigments, fine chemical engineering and Chinese medicine extraction, etc.

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Subcritical Herbal Extraction Machine Technical PrincipleMain solvents for low temperature sub critical extraction are liquid propane, butane, dimethyl ether, R134a and liquid ammonia. It is because the extraction temperature is above the boiling point of the solvent but under the critical temperature, and these 5 sub critical solvents' boiling point are all below 0℃. We define it as low temperature sub critical extraction. The extraction principle is similarity-inter-miscibility theory, the technology is counter current extraction, the pressure is between 0.3~ 1.0MPa, the temperature for extraction and dissolving is environment temperature, the solvent is adopted compression recovery and recycling.

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Sub critical Herbal Extraction Machine Technical Advantages

1.Complete materials extraction and dissolve at room temperature, the heat-sensitive components in oils and meals would not thermotropy, achieving the quality of extraction and separation for protein, pigment, medicinal herbs and volatile oil products;

2.Less solvent consumption, per ton of raw material consumes solvent below 8 kg;

3.Energy conservation, relative to the conventional hexane extraction, heat energy saving of 70%; 4 Comparing to the super-critical CO2 extraction, it is small investment, low production cost and big production scale.

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Sub-critical Herbal Extraction Machine Workflow

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