Apparatus and method for producing policosanol having specific chromatographic fingerprint

An apparatus for producing a policosanol having a specific chromatographic fingerprint, comprising:

• a melting tank (1);
• a feed tank (2), with an inlet of the feed tank (2) being communicated with an outlet of the melting tank (1);
• a rectifying tower (3) having a rectifying still (4) disposed at a bottom of the rectifying tower, a reflux condenser (5) disposed at a top of the rectifying tower, and a connection section (6) disposed between the top of the rectifying tower and the reflux condenser, with a discharge outlet being formed in the connection section (6), and a feed inlet being formed in the rectifying still (4) and communicated with an outlet of the feed tank (2);
• wherein an inflation inlet is formed in the connection section (6) to charge an inert gas into a system during a rectifying process;
• a first receiving tank (7), a second receiving tank (8) and a third receiving tank (9) that are connected in parallel, with inlets of the first receiving tank (7), the second receiving tank (8) and the third receiving tank (9) being communicated with the discharge outlet of the connection section (6);
• a fourth receiving tank (10) which is communicated with an outlet of the rectifying still (4);
• a first vacuum unit (11) which is communicated with the reflux condenser (5);
• and
• a second vacuum unit (12) which is communicated with the first receiving tank (7), the second receiving tank (8), the third receiving tank (9), the fourth receiving tank (10) and the feed tank (2) separately, to control vacuum degrees in the first receiving tank (7), the second receiving tank (8), the third receiving tank (9), the fourth receiving tank (10), and the feed tank (2).