A kind of pharmaceutical carbon dioxide supercritical extraction method
A carbon dioxide and supercritical technology, applied in chemical instruments and methods, separation methods, solvent extraction, etc., can solve the problems of complex equipment composition, slow process, and long extraction time, so as to simplify the extraction process and equipment composition, and speed up recovery The speed, the effect of speeding up the injection speed
Active Publication Date: 2021-12-03
JIANGSU GAOKE PHARM EQUIP CO LTD
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Problems solved by technology
[0003] In the pharmaceutical process, supercritical carbon dioxide is generally used to extract drugs, but at present, the carbon dioxide is still recovered in a liquid state during the extraction process, which makes the equipment composition more complicated, the operation difficulty is increased, and the cost is also increased. Moreover, the extraction in the device Most of the tanks allow supercritical carbon dioxide to mix naturally with the drug, which takes a long time to extract and affects production efficiency. In addition, the structure of the separation tank used to separate the extract is relatively simple, mainly using curved tubes for gas and liquid separation. Not thorough enough, slow process
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Embodiment 1
[0045] see Figure 1-6 , a pharmaceutical carbon dioxide supercritical extraction method, comprising an extraction tank 1, a carbon dioxide storage tank 2, a drug storage tank 3, a pressurizer 4 and a separation tank 5, comprising the following steps:
[0046] S1, the carbon dioxide storage tank 2 sends carbon dioxide into the extraction tank 1, and the medicine storage tank 3 sends the medicine liquid into the extraction tank 1;
[0047] S2, the pressurizer 4 pressurizes the extraction tank 1, cooperates with the temperature control device of the extraction tank 1 to make the carbon dioxide in the extraction tank 1 reach a supercritical state, and the supercritical carbon dioxide extracts the medicinal liquid;
[0048] S3, the mixed liquid after extraction enters the separation tank 5 at normal temperature and pressure. Under normal temperature and pressure conditions, carbon dioxide is a gas, which is easy to separate from the liquid medicine. The carbon dioxide in the gas s...
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The invention discloses a method for supercritical extraction of carbon dioxide for pharmaceutical use, belonging to the field of pharmaceutical equipment. A method for supercritical extraction of carbon dioxide for pharmaceutical use comprises an extraction tank, a carbon dioxide storage tank, a medicine storage tank, a press and a separation tank, including the following Step: S1, the carbon dioxide storage tank sends carbon dioxide into the extraction tank, and the medicine storage tank sends the liquid medicine into the extraction tank, which can realize the recovery of gaseous carbon dioxide under normal temperature and pressure, simplify the extraction process and equipment composition, and reduce costs , and use the first shell to sprinkle the liquid medicine to speed up its mixing speed with supercritical carbon dioxide and improve the extraction efficiency, and a wing plate is also set in the separation tank to beat down the mixture, so as to separate the gas and liquid Complete separation, and at the same time use the reciprocating mechanism to drive the two wings to incite back and forth to improve the hitting effect.
Description
technical field [0001] The invention relates to the field of pharmaceutical equipment, in particular to a pharmaceutical carbon dioxide supercritical extraction method. Background technique [0002] The principle of supercritical carbon dioxide extraction and separation process is to use supercritical carbon dioxide to have a special dissolution effect on some special natural products, and to use the relationship between the dissolving ability of supercritical carbon dioxide and its density, that is, to use the influence of pressure and temperature on the dissolving ability of supercritical carbon dioxide. ongoing. In the supercritical state, supercritical carbon dioxide is contacted with the substance to be separated, so that it selectively extracts components with different polarity, boiling point and molecular weight in sequence. Of course, the extraction corresponding to each pressure range The substance cannot be single, but the conditions can be controlled to obtain t...
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IPC IPC(8): B01D11/04
CPCB01D11/0403
Inventor 黄兴
Owner JIANGSU GAOKE PHARM EQUIP CO LTD