Green extraction process for artemisinin
An extraction process, artemisinin technology, applied in the direction of organic chemistry, can solve the problems of no market competitiveness, high operating costs, low production capacity, etc., to delay the decline of artemisinin content, reduce production costs, and improve the extraction rate Improved effect
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Embodiment 1
[0025] The artemisinin green extraction process of the present invention comprises the following steps:
[0026] (1) Raw material drying treatment: The raw materials of Artemisia annua (the raw material of Artemisia annua is the directly purchased medicinal plant Artemisia annua, with a water content of 14%) are put into microwave energy-saving drying equipment for drying treatment. During the drying process, microwave energy-saving drying equipment The temperature is set to 45°C, and the drying time is 30 minutes. When the moisture of the raw materials of Artemisia annua drops to 7%, the raw materials of Artemisia annua are taken out and bagged, and stored in storage;
[0027](2) Primary preparation of artemisinin: put 1000kg of the dried artemisinin raw material in step (1) into the extraction tank, close the feeding port of the extraction tank, open the oil inlet valve of the extraction tank, and add petroleum into the extraction tank Ether, heating countercurrent extractio...
Embodiment 2
[0045] The technological process of the present embodiment is the same as that of the first embodiment, and only part of the technological parameters are different. The artemisinin green extraction process of the present invention includes the following steps:
[0046] (1) Raw material drying treatment: put the raw materials of Artemisia annua into the microwave energy-saving drying equipment for drying treatment. During the drying process, the temperature of the microwave energy-saving drying equipment is set to 60°C, and the drying treatment time is 35 minutes, until the moisture of the raw materials of Artemisia annua drops to 60°C. At 6%, take out the raw materials of Artemisia annua, pack them in bags, and store them in storage;
[0047] (2) Primary preparation of artemisinin: (1) 1000kg of the dried artemisinin raw material was put into the extraction tank, the feeding port of the extraction tank was closed, the oil inlet valve of the extraction tank was opened, and petro...
Embodiment 3
[0052] The technological process of the present embodiment is the same as that of the first embodiment, and only part of the technological parameters are different. The artemisinin green extraction process of the present invention includes the following steps:
[0053] (1) Raw material drying treatment: put the raw materials of Artemisia annua into the microwave energy-saving drying equipment for drying treatment. During the drying process, the temperature of the microwave energy-saving drying equipment is set to 65°C, and the drying treatment time is 25 minutes, until the moisture of the raw materials of Artemisia annua drops to 65°C. At 5%, take out the raw materials of Artemisia annua, pack them in bags, and store them in storage;
[0054] (2) Primary preparation of artemisinin: (1) 1000kg of the dried artemisinin raw material was put into the extraction tank, the feeding port of the extraction tank was closed, the oil inlet valve of the extraction tank was opened, and petro...
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