CN101722068A - Lactide and glycollide synthetic reaction glass device - Google Patents
Lactide and glycollide synthetic reaction glass device Download PDFInfo
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- CN101722068A CN101722068A CN201010033622A CN201010033622A CN101722068A CN 101722068 A CN101722068 A CN 101722068A CN 201010033622 A CN201010033622 A CN 201010033622A CN 201010033622 A CN201010033622 A CN 201010033622A CN 101722068 A CN101722068 A CN 101722068A
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- lactide
- boiling
- glycollide
- reaction
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to a lactide and glycollide synthetic reaction glass device, in particular to a glass reaction device for separating and distilling two components with high boiling point. In the invention, the high boiling point refers to when the atmospheric pressure is 760mmHg, and the boiling point is above 100 DEG C. The device mainly comprises three parts, wherein the first part comprises a distillation flask 8 and a four-way fractionation head 3, two ports of the four-way fractionation head are respectively provided with a piston 1 and a piston 1A which are both connected with drag bars; the second part is a unit for receiving low-boiling-point fractions, and comprises a condensing tube 5 and a receiving bottle 7; and the third part is a unit for receiving high-boiling-point fractions, and comprises a condensing tube 9, a cold-heat exchanger 10, a receiving bottle 14 and a condensing tube 15.
Description
The present invention relates to a kind of chemical experimental instrument, relate in particular to a kind of glass material reaction unit that the higher boiling bi-component can be separated distillation.The higher boiling that this narration is related is meant 760mmHg, and boiling point is more than 100 ℃.
Technical background
In chemical experiment, the chemical reactions such as separated of higher boiling bi-component, there are problems in its overall process in same set of apparatus, for example: with collecting the mutual pollution that different component can take place pipeline with a cover condensation; The bi-component boiling point differs greatly, the cooling media difference, sometimes can not shared same set of cooling pipe etc.Because these problems affect, the process of the chemical reactions such as separated of higher boiling bi-component generally adopts two to overlap independently condensation gathering-device, after the low boiling component separation is finished, changes the method for high boiling component condensation gathering-device again.In the process of implementing this " changing again ", the environment of its pressure, temperature all needs to return to normal pressure or normal temperature could be operated, cause a complete reaction overall process to be cut apart, the segmented mode of this " changing again ", a lot of chemical reaction processes are brought inconvenience, even have influence on reaction result.
Summary of the invention:
Purpose: design one cover is used for the device of the separated (or reaction) of higher boiling two ingredient liquids, is implemented in the bi-component separated reaction overall process uninterrupted continuously.
For achieving the above object, the technical solution used in the present invention is:
Bidirectional shunt connector of 1 design is to derive the cut of two different recovered (distilled) temperatures respectively
Two pistons of 2 designs and propelling, the connection control lever of pulling out do not stop reaction to be implemented in the course of reaction, without provision for disengagement, can seal or open the passage of any one cut yet
Cold and hot metal interchanger of 3 designs, vapour phase liquefaction or solid phase liquefaction when helping high boiling fraction to distillate with realization
Advantage of the present invention is:
1 can overlap higher boiling (being higher than 140 ℃) and low boiling (being lower than 120 ℃) bi-component in the reaction unit one, realizes the continuous hitless operation that heating distillates
Closing and opening of 2 pistons can realize the effect of partition, water conservancy diversion, sealing to vapour phase
3 when high boiling fraction still can not liquefy fully by condenser pipe, and the cold and hot metal interchanger can make vapour phase liquefaction by importing cold media
4 occur when solid-state when high boiling fraction condensation too early in condenser pipe, and the cold and hot metal interchanger can make solid-state liquefaction by importing thermal medium.
Description of drawings
Accompanying drawing is a synthetic reaction glass device structural representation
The specific embodiment
Further specify embodiments of the present invention and effect with following non-limiting example.
As shown in the figure, the device of the separated of higher boiling two ingredient liquids (or reaction) mainly is made up of three parts, and first comprises cucurbit 8, four-way fractional still head 3, and two mouths of four-way fractional still head are equipped with piston 1 and piston 1A respectively, and piston links pull bar; Second portion is to receive the low boiler cut device, comprises condenser pipe 5, receiving bottle 7; Third part is to accept the high boiling fraction device, comprises condenser pipe 9, cool-heat-exchanger 10, receiving bottle 14, condenser pipe 15 compositions.
Install as shown, the D-lactic acid aqueous solution of packing in cucurbit 8, charge weight are 3/5ths of cucurbit volume; Turn pitch brace 2A, will be pushed into the sealing fractional still head before the piston 1A; Turn pitch brace 2, piston 1 is stepped back to opening fractional still head; Insert vavuum pump at exhaust outlet 6; Condenser pipe 5 is connected the cooling fluid that flows.Afterwards, heating cucurbit 8, starting vavuum pump to cucurbit internal pressure is 100mmHg, the temperature of solution has the steam state material to become liquid through condenser pipe 5 cooling backs, and flows in the receiving flask 7 in the time of 70-140 ℃ in the cucurbit.When fluid temperature in the cucurbit reaches more than 140 ℃, turn pitch brace 2A, piston 1A is stepped back to opening fractional still head; Turn pitch brace 2, will be pushed into the sealing fractional still head before the piston 1; Insert vavuum pump at exhaust outlet 16; Condenser pipe 15 and 11 is connected the cooling fluid that flows.Starting vavuum pump to cucurbit internal pressure is 10mmHg, and the temperature of solution has the steam state material to become liquid through condenser pipe 9 and cooler 10 cooling backs, and flows in the receiving flask 14 in the time of 140-200 ℃ in the cucurbit.In this process, if on cooling tube 11 walls when the solid matter, can add hot liquid from 12 liquid inlets, and derive from 13, adhere to be reduced to the disappearance solid matter.After reaction finished, what obtain in the receiving flask 7 was water, and what obtain in the receiving flask 14 is levorotatory lactide.
Claims (3)
1. one kind can be applied to lactide, glycolide synthetic reaction derivation bi-component cut, has the glass device of the double fluid of piston, pitch brace and cold and hot metal interchanger to reaction
2. piston according to claim 1, have to advance with pulling out and be connected control device
3. the cool-heat-exchanger that is connected on the package unit according to claim 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010033622A CN101722068A (en) | 2010-01-07 | 2010-01-07 | Lactide and glycollide synthetic reaction glass device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010033622A CN101722068A (en) | 2010-01-07 | 2010-01-07 | Lactide and glycollide synthetic reaction glass device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101722068A true CN101722068A (en) | 2010-06-09 |
Family
ID=42443969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010033622A Pending CN101722068A (en) | 2010-01-07 | 2010-01-07 | Lactide and glycollide synthetic reaction glass device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101722068A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837831A (en) * | 2017-11-10 | 2018-03-27 | 西安工程大学 | A kind of distilling apparatus and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB715384A (en) * | 1951-04-23 | 1954-09-15 | Ici Ltd | Process of and apparatus for condensing vaporised phthalic anhydride |
| DE4402499C1 (en) * | 1994-01-28 | 1995-04-27 | Boewe Passat Reinigung | Process and apparatus for distilling a contaminated hydrocarbon solvent liquor |
-
2010
- 2010-01-07 CN CN201010033622A patent/CN101722068A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB715384A (en) * | 1951-04-23 | 1954-09-15 | Ici Ltd | Process of and apparatus for condensing vaporised phthalic anhydride |
| DE4402499C1 (en) * | 1994-01-28 | 1995-04-27 | Boewe Passat Reinigung | Process and apparatus for distilling a contaminated hydrocarbon solvent liquor |
Non-Patent Citations (1)
| Title |
|---|
| 邹学斌: "论有机物质的精制"常压蒸馏"", 《质量天地》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837831A (en) * | 2017-11-10 | 2018-03-27 | 西安工程大学 | A kind of distilling apparatus and method |
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Application publication date: 20100609 |