Production technology for extracting usnic acid from usnea longissima
A production process, the technology of usnic acid, applied in the direction of organic chemistry, etc., can solve the problems that the application effect is not as good as countercurrent extraction, the process is expensive, and the silica gel column chromatography purification, etc., to achieve the effect of reducing content, complete extraction, and high extraction efficiency
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Embodiment 1
[0025] Weigh 500kg of Usnea longissima body, crush it into coarse powder and pass through a 40-mesh sieve, add it at a constant speed of 50kg / h from the feeding port of the elevator, and use a pipeline pump to feed 75% acetone aqueous solution through the liquid inlet pipe at a flow rate of 200kg / h. Join, the frequency of the elevator is set to 20Hz, the frequency of the host 1 is set to 16Hz, the frequency of the juicer 1 is set to 50Hz, the frequency of the host 2 is set to 22Hz, the frequency of the juicer 2 is set to 45Hz, and the usnic acid is obtained Crude extract 2T; The crude extract of usnic acid flows to the temporary storage tank by itself and is continuously pumped to the concentration tank by the outlet pump to concentrate to obtain 200L of the crude concentrate of usnic acid; adjust the valve of the material pump to make the crude concentrate of usnic acid to 1L / min enters the extraction tower, and adjusts the solvent pump valve so that ethyl acetate enters the e...
Embodiment 2
[0027] Weigh 1.4T of Usnea licheniformis, crush it into coarse powder and pass through an 80-mesh sieve, add it at a constant speed of 200kg / h from the feeding port of the elevator, and use a pipeline pump to feed 75% acetone aqueous solution at a flow rate of 600kg / h. The tube is added, the frequency of the elevator is set to 25Hz, the frequency of the host 1 is set to 18Hz, the frequency of the juicer 1 is set to 45Hz, the frequency of the host 2 is set to 20Hz, the frequency of the juicer 2 is set to 40Hz, and the Usnea Crude acid extract 4.2T: The crude extract of usnic acid flows to the temporary storage tank by itself and is continuously pumped to the concentration tank by the outlet pump to concentrate to obtain 400L crude concentrate of usnic acid; adjust the valve of the material pump to make the crude concentrate of usnic acid Liquid enters extraction tower with 0.5L / min, adjusts solvent pump valve, makes ethyl acetate enter extraction tower with 2L / min, obtains usnic...
Embodiment 3
[0029] Weigh 800kg of Usnea longissima body, crush it into a coarse powder and pass through a 60-mesh sieve, add it at a constant speed of 80kg / h from the feeding port of the elevator, and use a pipeline pump to feed 80% acetone aqueous solution through the liquid inlet pipe at a flow rate of 250kg / h. Join, the frequency of the elevator is set to 22Hz, the frequency of the host 1 is set to 18Hz, the frequency of the juicer 1 is set to 50Hz, the frequency of the host 2 is set to 22Hz, the frequency of the juicer 2 is set to 45Hz, and the usnic acid is obtained The crude extract of usnic acid is 2.5T; the crude extract of usnic acid flows automatically to the temporary storage tank and is continuously pumped to the concentration tank through the liquid pump to concentrate to obtain 250L of crude concentrate of usnic acid; adjust the valve of the material pump to make the crude concentrate of usnic acid Enter the extraction tower with 0.8L / min, adjust the solvent pump valve, make ...
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