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Method for extracting and separating blend of organic matters and water by using triethylamine

A technology of organic matter and blends, applied in chemical instruments and methods, extraction water/sewage treatment, liquid solution solvent extraction, etc., can solve problems such as large energy consumption, environmental pollution, solvent volatilization loss, etc., and achieve low vapor pressure and dissolution The effect of good performance and designable structure

Inactive Publication Date: 2018-01-19
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, salting out will produce a large amount of salty organic wastewater, and rectification will consume a lot of energy and cause some solvent volatilization loss and pollute the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0012] (1) Accurately measure 20mL of water, 40mL of triethylamine, and 20mL of tetrahydrofuran with a graduated cylinder.

[0013] (2) Pour the measured solution into a clean beaker, seal it with plastic wrap, and put it in a constant temperature water bath at 283.1K for use.

[0014] (3) High-purity CO 2 Pass it into a beaker, and take the upper layer solution and the lower layer solution every 0.5h for gas chromatography analysis until the composition of the solution does not change and the reaction reaches equilibrium, and the upper layer solution and the lower layer solution are respectively obtained.

[0015] (4) Take 1mL of the upper layer solution and 1mL of the lower layer solution in a 25mL volumetric flask, use toluene as an internal standard, dilute to 25mL, and conduct gas chromatography analysis. The analysis conditions are as follows: detector: hydrogen flame ion detector (FID detector); heater: 493.15K; detection chamber temperature: 523.15K; -1 The rate of h...

example 2

[0018] (1) Accurately measure 20mL of water, 40mL of triethylamine, and 20mL of 1,3-dioxane with a graduated cylinder.

[0019] (2) Pour the measured solution into a clean beaker, seal it with plastic wrap, and put it in a constant temperature water bath at 283.1K for use.

[0020] (3) High-purity CO 2 Pass it into a beaker, and take the upper layer solution and the lower layer solution every 0.5h for gas chromatography analysis until the composition of the solution does not change and the reaction reaches equilibrium, and the upper layer solution and the lower layer solution are respectively obtained.

[0021] (4) Take 1mL of the upper layer solution and 1mL of the lower layer solution in a 25mL volumetric flask, use toluene as an internal standard, dilute to 25mL, and conduct gas chromatography analysis. The analysis conditions are as follows: detector: hydrogen flame ion detector (FID detector); heater: 493.15K; detection chamber temperature: 523.15K; -1 The rate of heati...

example 3

[0024] (1) Accurately measure 20mL of water, 40mL of triethylamine, and 20mL of 1,4-dioxane with a graduated cylinder.

[0025] (2) Pour the measured solution into a clean beaker, seal it with plastic wrap, and put it in a constant temperature water bath at 283.1K for use.

[0026] (3) High-purity CO 2 Pass it into a beaker, and take the upper layer solution and the lower layer solution every 0.5h for gas chromatography analysis until the composition of the solution does not change and the reaction reaches equilibrium, and the upper layer solution and the lower layer solution are respectively obtained.

[0027] (4) Take 1mL of the upper layer solution and 1mL of the lower layer solution in a 25mL volumetric flask, use toluene as an internal standard, dilute to 25mL, and conduct gas chromatography analysis. The analysis conditions are as follows: detector: hydrogen flame ion detector (FID detector); heater: 493.15K; detection chamber temperature: 523.15K; -1 The rate of heati...

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PUM

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Abstract

The invention discloses a method for extracting and separating a blend of organic matters and water by using triethylamine, and relates to the technical field of green and efficient separation of organic matters and water. Triethylamine is mixed with the blend of organic matters and water; CO2 is introduced for reaction; after the reaction is finished, the upper layer is an organic phase containing the organic matters; then the lower layer is heated or reacts with N2; and water and triethylamine are obtained separately. After the reaction, the upper layer is an organic phase containing the organic matters, wherein the mass fraction of the organic matters can reach 75-95%; the lower layer is heated or further reacts with N2, and the triethylamine can be recycled, and can be utilized circularly. According to the invention, a volatile organic solvent and an inorganic salt used in the prior inorganic salt salting-out process can be replaced, and the method leads the direction of the development of green chemistry and chemical industry.

Description

technical field [0001] The invention relates to the technical field of green and efficient separation of organic matter and water. Background technique [0002] Salting out and rectification are common methods for recovering organic substances from products and aqueous solutions. However, salting out will produce a large amount of salty organic wastewater, while rectification consumes a lot of energy and causes some solvent volatilization loss and environmental pollution. [0003] The goal of green chemistry is to develop processes and technologies that are more efficient, less wasteful, and less environmentally polluting than traditional chemical processes. Among the 12 basic principles of green chemistry, one of them requires chemical processes to use as little solvent as possible. Use as harmless solvents as possible. If an additive is added to the water, the ionic strength and / or hydrophilicity of the system can be switched and controlled within a wide range, and the w...

Claims

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Application Information

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IPC IPC(8): B01D11/04C02F1/26C02F101/30
Inventor 王剑徐安莉赵红坤
Owner YANGZHOU UNIV
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