Solvent extraction is a core process in modern vegetable oil production, enabling efficient and complete oil recovery from various oilseeds and grains. Huatai Grain and Oil Machinery Co., Ltd. designs and manufactures customized solvent extraction systems that combine safety, efficiency, and reliability for industrial-scale oil producers worldwide.
How Solvent Extraction Works
The process utilizes food-grade solvent (n-hexane) to dissolve oil from prepared raw materials. Key stages include:
- Feeding: Expanded or flaked oilseeds are uniformly fed into the extractor
- Extraction: Solvent percolates through the material, dissolving oil
- Separation: Two intermediate products are obtained:
- Wet meal: Sent to a desolventizer to produce high-value animal feed
- Mixed oil: Evaporated and stripped to remove solvent, yielding crude oil
Huatai Extraction Equipment Options
We offer three types of extractors to suit different raw materials and plant layouts:
Rotary Extractor
- Suitable for high-capacity plants
- Continuous operation with low solvent consumption
Loop Extractor
- Gentle handling of fragile materials
- Flexible for multiple oilseed types
Drag-Chain Extractor
- Ideal for rice bran and other lightweight materials
- Compact design with high efficiency
Applicable Raw Materials
Huatai extraction systems process a wide range of oilseeds including:
Soybean,Rice bran,Corn germ,Sunflower seed,Cottonseed,Rapeseed,Tiger nut (Cyperus esculentus)
Key System Features
- High Oil Yield – Up to 99% extraction efficiency
- Solvent Recovery – Advanced evaporation and stripping systems
- Meal Quality – Gentle desolventizing preserves protein value
- Safety Compliance – Meets international food safety standards
- Automation – PLC control for stable operation
From Crude Oil to Finished Product
The extracted crude oil still contains impurities and requires subsequent refining—including degumming, decolorization, and deodorization—to meet edible oil standards. Huatai provides complete solutions from extraction to refined oil production.
Global Implementation
Huatai solvent extraction plants operate successfully in over 30 countries across Asia, Africa, and South America, serving both large enterprises and medium-scale producers.
Why Choose Huatai?
- 38+ Years of specialized experience
- Custom Engineering – Tailored to your raw material and capacity needs
- Complete Service – From design and manufacturing to installation and training
- Proven Technology – Reliable performance with low operating costs
