Extraction method of linalool
An extraction method and a technology of linalool, which are applied in the field of linalool extraction, can solve the problems of harsh preparation conditions, high production cost, and difficult operation of linalool, and achieve low cost, sufficient amount of raw materials, and short process flow Effect
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Embodiment 1
[0029] 1) Put the star anise fruit and leaves into the steam oil pan, the steam pressure is 0.01-0.03MPa, the kettle temperature is 30-100°C, the oil-water mixture is collected, and the oil-water is separated to obtain fennel oil;
[0030] 2) Frozen centrifugation: Put the fennel oil into the cold storage, adjust the temperature of the cold storage to -3-5°C, freeze for 12-16 hours, crush and centrifuge, then heat and melt;
[0031] 3) Put the molten liquid obtained in step 2) into a rectifying tower, control the temperature of the kettle at 50-125°C under a low pressure of ≤100Pa, collect the front fraction equivalent to 13-15% weight ratio of the molten liquid at 10-50kg / h, and obtain 30% Artemisinin, control the temperature of the kettle at 120°C-130°C, collect the intermediate product equivalent to 5-7% weight ratio of the melt at 5-15kg / h, and obtain 60-70% anethole, press 140- 150kg / h continues to collect anethole equivalent to 70-74% weight ratio of the melt, and the te...
Embodiment 2
[0036] Step 1)-5) with embodiment 1;
[0037] 6) Put 2T head oil (84% linalool) into the 3T high-efficiency separation and rectification tower, raise the temperature to 60-80°C at ≤100Pa, collect 500kg of fractions at 45-60°C, adjust the temperature to 90-110°C, and the reflux ratio 5:2 Collect 1200kg of fractions at 65-88°C, adjust the temperature to 110-125°C to fully open and collect 250kg of tail oil, the total material yield is 97.5%, and the qualified linalool (content ≥ 98%) has a yield of 70.0%.
Embodiment 3
[0039] Step 1)-5) with embodiment 1;
[0040] 6) Put 2T head oil (84% linalool) into the 3T high-efficiency separation and rectification tower, raise the temperature to 50-60°C at ≤100Pa, collect 200kg of fractions at 45-48°C, adjust the temperature to 70-110°C, and the reflux ratio 5:3 Collect 1500kg of fractions at 65-84°C, adjust the temperature to 110-125°C to fully open and collect 290kg of tail oil, the total material yield is 99.5%, and the qualified linalool (content ≥ 98%) has a yield of 87.5%.
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