CN1087552A - Heat sensitive material vacuum self-loopa rapid evaporation-condensation separation method - Google Patents
Heat sensitive material vacuum self-loopa rapid evaporation-condensation separation method Download PDFInfo
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- CN1087552A CN1087552A CN 93118503 CN93118503A CN1087552A CN 1087552 A CN1087552 A CN 1087552A CN 93118503 CN93118503 CN 93118503 CN 93118503 A CN93118503 A CN 93118503A CN 1087552 A CN1087552 A CN 1087552A
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Abstract
The present invention relates to a kind of heat sensitive material vacuum self-loopa rapid evaporation-condensation separation method.This separation method mainly adopts an inside to be provided with that institute's constituent apparatus such as the destilling tower of compact conformation of bringing-up section, condensation segment and gas-liquid separation chamber and feed liquid basin are realized.It is characterized in that, vacuumize at the bottom of tower that from the cat head charging, discharge at the bottom of by tower by condensate liquid by pull of vacuum in the tower for feed liquid, raffinate is discharged from tower, and the capable of self-circulating evaporation process of repeatedly carrying out.
Apparatus of the present invention leakage point is few, very easily obtains the high vacuum operation, does not have the static pressure elevation of boiling point, and evaporation is fast, and heated time is short, need not establish the feed liquid circulating pump, small investment, and operation is reliable.
Description
The invention belongs to liquid mixture evaporation-condensation separation method, or rather, is the evaporation-condensation separation method with heat sensitive material.
The routine distillation of heat sensitive material is that the realization vacuumizing is finished on the device of being made up of reboiler (heater), destilling tower and condenser.Shortcoming has three: 1, whole apparatus structure complexity, tie point is many, valve is many, is difficult for obtaining higher vacuum; 2, heating kettle adopts the liquid storage type structure, and then fluid pressure causes the feed liquid elevation of boiling point; 3, heating kettle adopts the membrane type heating, then need be equipped with circulating pump, and the forced-circulation boiling feed liquid has not only increased installation cost, maintenance cost but also increased leakage point, and vacuum is reduced, and is unfavorable for the separation of heat sensitive material.
Purpose of the present invention is to overcome existing above-mentioned weak point when separating heat sensitive material with conventional distillation technique, and a kind of vacuum self-loopa rapid evaporation-condensation separation method is provided, and this method is specially adapted to the very separation of sensitive materials of temperature.
Technical essential of the present invention is, one vertical, top is provided with bringing-up section, the bottom is provided with condensation segment, is provided with devices such as the destilling tower of gas-liquid separation chamber and feed liquid basin between two sections and goes up and implement the evaporation-condensation separation process.It is characterized in that: one, at the bottom of tower, vacuumize.Two, feed liquid basin to be separated and raffinate basin, by transfer valve separately with cat head charging aperture and tower in the raffinate outlet connect into closed circuit loop.Three, feed liquid to be separated relies on pull of vacuum in the tower, and by the cat head charging, epimere is evaporated in tower, and steam is condensed at the hypomere of tower, and condensate liquid is discharged at the bottom of by tower.Four, unevaporated raffinate cools off storage after separating by gas-liquid separation chamber in the tower outside tower is discharged in the tower middle part.
Accompanying drawing is apparatus of the present invention schematic diagrames.Wherein 1 is bringing-up section in the tower, and 2 is Ta Nei gas-liquid separation chamber, and 3 is condensation segment in the tower, and 4 is feed liquid basin to be separated, and 5 and 9 is transfer valve, and 6 is cold-trap, and 7 is receiving tank, and 8 is the raffinate basin.
In conjunction with the accompanying drawings the present invention is realized that vacuum self-loopa rapid evaporation-condensation separation heat sensitive material process describes, when at the bottom of the tower by cold-trap with after vacuum system is connected, just form high vacuum in the tower, close under the situation at transfer valve 5, feed liquid to be separated in the basin 4 relies on the pull of vacuum in the tower, flow in the tower from cat head, after process bringing-up section 1 is heated, wherein low boiling component evaporation, evaporation gas and unevaporated raffinate also flow downwards along the bringing-up section pipe, flow to gas-liquid separation chamber 2 through separating, raffinate flows into the 8 interior coolings of raffinate basin by the transfer valve of opening 9 and stores.Be condensed and flow to condensation segment 3 under the steam, condensate liquid is discharged in the receiving tank 7 cooling at the bottom of by tower and stores, when feed liquid to be separated in the basin 4 all flows in the tower, just finished the separation process of circulating and evaporating-condensation for the first time, if do not reach separation requirement as yet, can carry out the separation process that circulates the second time, transfer valve 5 is opened, close transfer valve 9, and regulate other closing valve is arranged, the raffinates that received in the raffinate basin 8 as feed liquid to be separated, are realized evaporation-condensation separation process for the second time in tower, so carry out repeatedly, just can reach the purpose of separating heat sensitive material.
Adopt the present invention that heat sensitive material is implemented to separate, its good effect has following 3 points, and one, whole separation process is to carry out in the tower of a compact conformation, this device leakage point is seldom, valve is few, very easily obtains high vacuum operating condition (residual voltage can reach 1 millimetres of mercury). And feed liquid be membranaceous from overhead streams to tower at the bottom of, do not have hydrostatic pressure, do not cause the rising of feed liquid boiling point, be conducive to protect heat sensitive material not to be damaged. Two, falling film evaporation speed is fast, and material heated time short (can in a minute) is particularly conducive to the separation of heat sensitive material. Three, the feed liquid automatic cycle flows, and does not need the feed liquid delivery pump in the device, and investment and maintenance cost that this has not only reduced equipment have also reduced leakage point, have improved operating reliability.
Adopt separation method of the present invention, laurine is separated, obtained satisfactory result.
This separation method also can be used for the rapid evaporation of heat sensitive material and separates.
Claims (1)
1, a kind of heat sensitive material vacuum self-loopa rapid evaporation-condensation separation method that is applicable to, mainly be that one of employing is vertical, top is provided with bringing-up section, the bottom is provided with condensation segment, be provided with between two sections and realized on the device that the destilling tower of gas-liquid separation chamber and attached basin, cold-trap, valve constitute, it is characterized in that:
A, at the bottom of tower, vacuumize,
B, feed liquid basin to be separated and raffinate basin, by transfer valve separately with cat head charging aperture and tower in raffinate outlet, connect into closed circuit loop,
C, feed liquid to be separated rely on pull of vacuum in the tower, from the cat head charging, and the evaporation back condensation earlier of flowing from top to bottom, condensate liquid is discharged cooling at the bottom of by tower and is stored,
D, do not evaporate raffinate, after gas-liquid separation chamber separates, store by discharging cooling in the tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93118503 CN1087552A (en) | 1993-10-04 | 1993-10-04 | Heat sensitive material vacuum self-loopa rapid evaporation-condensation separation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93118503 CN1087552A (en) | 1993-10-04 | 1993-10-04 | Heat sensitive material vacuum self-loopa rapid evaporation-condensation separation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1087552A true CN1087552A (en) | 1994-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93118503 Pending CN1087552A (en) | 1993-10-04 | 1993-10-04 | Heat sensitive material vacuum self-loopa rapid evaporation-condensation separation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1087552A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706137A (en) * | 2013-12-02 | 2014-04-09 | 福建省邵武市永晶化工有限公司 | Antimony pentafluoride rectification equipment |
| CN110960880A (en) * | 2019-12-17 | 2020-04-07 | 郑州超之肽生物技术有限公司 | Method for purifying volatile chemical organic compounds |
-
1993
- 1993-10-04 CN CN 93118503 patent/CN1087552A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706137A (en) * | 2013-12-02 | 2014-04-09 | 福建省邵武市永晶化工有限公司 | Antimony pentafluoride rectification equipment |
| CN103706137B (en) * | 2013-12-02 | 2015-07-22 | 福建省邵武市永晶化工有限公司 | Antimony pentafluoride rectification equipment |
| CN110960880A (en) * | 2019-12-17 | 2020-04-07 | 郑州超之肽生物技术有限公司 | Method for purifying volatile chemical organic compounds |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |