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Fractionation device, method and system for preparing high-purity fractions by monitoring temperature

A technology for monitoring temperature and fractionation device, applied in fractionation, fractional condensation purification/separation, distillation adjustment/control, etc., can solve the problem of no fractionation column heat preservation and other problems, achieve stable product quality, improve primary yield and improve purity. Effect

Active Publication Date: 2016-07-27
JINGANG PHARMA DALIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the prior art, there is no fractionation device that heats and heats the fractionation column according to the temperature change in the fractionation column so as to realize precise control of the temperature in the fractionation column

Method used

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  • Fractionation device, method and system for preparing high-purity fractions by monitoring temperature
  • Fractionation device, method and system for preparing high-purity fractions by monitoring temperature
  • Fractionation device, method and system for preparing high-purity fractions by monitoring temperature

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Embodiment 1

[0028] Such as figure 1 as well as figure 2 As shown, an embodiment of the present invention divides the fractionation column into upper, middle and lower parts on average, each part is wound with a group of resistance wires 1 respectively, and its material is iron-chromium-aluminum, nickel-chromium electrothermal alloy wire, and the diameter of the resistance wire 1 is 2-3mm, voltage 220V, power 300-1500W. In order to make the part of the corresponding fractionation column 6 covered by the resistance wire 1 be heated evenly, the periphery of the resistance wire 1 can be wrapped with asbestos, and then wrapped with a layer of aluminum foil. The resistance wire 1 is connected to the data line 2 . Three temperature sensors 3 are respectively arranged on the upper, middle and lower parts of the fractionation column 6 , one end of the three temperature sensors 3 is in contact with the outer wall of the fractionation column 6 , and the other end is connected with a temperature c...

Embodiment 2

[0030] Example 2 The preparation method adopted in the present invention can be realized by using the fractionation device described in Example 1. The preparation of elemene is taken as an example for description.

[0031] The preparation method of elemene of the present invention is:

[0032]A. Put 3000 grams of zedoary oil into the tower kettle 5 of the vacuum precision fractionation equipment. The tower kettle 5 starts to set the heating temperature to 270 ° C. Adjust the valve 13 on the vacuum line 11 to control the vacuum degree below 2000 Pa, and the total reflux is 30 Start to receive fractions after 10 minutes, experience crystallization in the middle until all crystals appear, and then fully reflux for 1 hour; continue to receive fractions until the fractions received are clearly stratified, and the above fractions are completely discarded after receiving them;

[0033] B. At this time, adjust the valve 13 on the vacuum pipeline 11 so that the vacuum degree of the sy...

Embodiment 3

[0035] Example 3 The preparation method adopted in the present invention can be realized by using the fractionation device described in Example 1. The preparation of elemene is taken as an example for description.

[0036] A. Put 3000 grams of zedoary oil into the tower kettle 5 of the vacuum precision fractionation equipment. The tower kettle 5 starts to set the heating temperature to 260 ° C. Adjust the valve 13 on the vacuum line 11 to control the vacuum degree below 2000 Pa, and the total reflux is 30 Start to receive fractions after 10 minutes, experience crystallization in the middle until all crystals appear, and then fully reflux for 1 hour; continue to receive fractions until the fractions received are clearly stratified, and the above fractions are completely discarded after receiving them;

[0037] B. At this time, adjust the valve 13 on the vacuum pipeline 11 so that the vacuum degree of the system is below 1000Pa, the temperature in the fractionation column 6 is 8...

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Abstract

The invention relates to a fractionation device, method and system for preparing high-purity fractions by monitoring temperature, and belongs to the technical field of chemical synthesis equipment and a synthesis method. The fractionation device comprises a fractionation column, fillings and temperature sensing control equipment, wherein the fillings are filled in the fractionation column; the temperature sensing control equipment comprises a resistance wire wound on the outer wall of the fractionation column and a data wire connected with the resistance wire; the data wire is connected onto a temperature control instrument; the temperature control instrument is connected with a temperature sensor; the temperature sensor is in contact with the outer wall of the fractionation column. The device, the method and the system have the beneficial effects that the temperature real-time control in the production process is realized; the primary finished product ratio of elemene is improved; the product quality of the elemene is stable; the elemene purity is improved.

Description

technical field [0001] The invention relates to chemical synthesis equipment and a synthesis method, in particular to a fractionation device, method and system for preparing high-purity fractions by monitoring temperature. Background technique [0002] The existing fraction extraction equipment is divided into four main parts: heating kettle, fractionation column, condenser and vacuum system. The heating kettle is mainly to heat the mixture to make it vaporize, and go up to the fractionation column, where the steam with low boiling point in the fractionation column is liquefied when it is cold, and the steam with high boiling point continues to go up, and the steam with low boiling point in the upward steam continues to liquefy when it is cold. The high-boiling steam continues upward, and the liquefied low-boiling substances meet the steam newly entering the fractionation column and are partially vaporized again. Repeatedly, multiple gas-liquid conversions are carried out in...

Claims

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Application Information

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IPC IPC(8): B01D3/14B01D3/42B01D3/32C07C7/09C07C13/19
CPCB01D3/14B01D3/32B01D3/42C07C7/09C07C13/19
Inventor 张立华简卫光余渊刘兴元
Owner JINGANG PHARMA DALIAN
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