A kind of separation method of acetone, toluene, sodium phenate and water quaternary mixture

A separation method and technology of sodium phenolate are applied in the separation/purification of carbonyl compounds, chemical instruments and methods, purification/separation of hydrocarbons, etc., to achieve the effect of simple process, reduced separation steps and high purity

Active Publication Date: 2022-04-12
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, there is no relevant report on the separation of the four-component mixture of acetone, toluene, sodium phenate and water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for separating a quaternary mixture of acetone, toluene, sodium phenate and water. The mass percentage concentration of each material in the mixture system is respectively 40% acetone, 30% toluene, 5% sodium phenate, and the rest is water, and the acetone is removed by distillation , azeotropic distillation to remove toluene and water, solid-liquid separation, condensation, drying operation, acetone, toluene, sodium phenate, water in the quaternary mixture are separated, it is characterized in that described method step is as follows:

[0031] (1) Distillation to remove acetone: the acetone in the mixture is removed in the distillation still, and the obtained gas phase material enters the fifth step of acetone condensation, and the material after distillation to remove acetone enters the next step;

[0032] (2) Azeotropic distillation to remove toluene and water: in the distillation still, the material after the acetone removal operation in the previous step is ...

Embodiment 2

[0039] A method for separating a quaternary mixture of acetone, toluene, sodium phenate and water. The mass percentage concentration of each material in the mixture system is respectively 20% of acetone, 10% of toluene, 15% of sodium phenate, and the rest is water, and the acetone is removed by distillation , azeotropic distillation to remove toluene and water, solid-liquid separation, condensation, drying operation, acetone, toluene, sodium phenate, water in the quaternary mixture are separated, it is characterized in that described method step is as follows:

[0040] (1) Distillation to remove acetone: the acetone in the mixture is removed in the rectifying tower, and the obtained gas phase material enters the fifth step of acetone condensation, and the material after distillation to remove acetone enters the next step;

[0041] (2) Azeotropic distillation to remove toluene and water: In the rectification tower, the material after the acetone removal operation in the previous...

Embodiment 3

[0048] A method for separating a quaternary mixture of acetone, toluene, sodium phenate and water. The mass percentage concentration of each material in the mixture system is 30% of acetone, 20% of toluene, 10% of sodium phenate, and the rest is water, and the acetone is removed by distillation , azeotropic distillation to remove toluene and water, solid-liquid separation, condensation, drying operation, acetone, toluene, sodium phenate, water in the quaternary mixture are separated, it is characterized in that described method step is as follows:

[0049] (1) Distillation to remove acetone: the acetone in the mixture is removed in the distillation still, and the obtained gas phase material enters the fifth step of acetone condensation, and the material after distillation to remove acetone enters the next step;

[0050] (2) Azeotropic distillation to remove toluene and water: in the distillation still, the material after the acetone removal operation in the previous step is sub...

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Abstract

The invention relates to a method for separating a quaternary mixture of acetone, toluene, sodium phenate and water, especially a separation mass percentage concentration of 20% to 40% acetone, 10% to 30% toluene, 5% to 20% sodium phenate, The rest is a mixed material composed of water. The quaternary mixture is separated by distillation to remove acetone, azeotropic distillation to remove toluene and water, solid-liquid separation, condensation and drying. The method of the invention realizes the resourceful separation and recovery of the mixture of acetone, toluene, sodium phenate and water, the separation process is reasonable and the process is simple. It not only reduces the separation steps and energy consumption, but also has a high utilization rate of valuable components, is easy to realize continuous operation, and the separated products can realize resource utilization. Effective resource separation and recovery technology.

Description

technical field [0001] The invention relates to a separation method of a quaternary mixture containing acetone, toluene, sodium phenate and water produced in the resource utilization process of a high-concentration phenol-containing aqueous solution, through distillation to remove acetone, azeotropic distillation to remove toluene and water, and solid-liquid separation Acetone, toluene, sodium phenate and water are recovered through condensing, drying and drying operations, and the resource separation and recovery of the mixture is realized, which belongs to the field of green chemical process and chemical separation technology. Background technique [0002] The quaternary mixture composed of acetone, toluene, sodium phenate and water originates from the resource utilization process of high-concentration phenol-containing aqueous solution. Toluene is added to the high-concentration phenol-containing aqueous solution as an extractant, sodium hydroxide as a neutralizer, and ace...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C45/78C07C45/82C07C45/84C07C49/08C07C7/00C07C7/04C07C7/06C07C15/06C07C37/68C07C37/74C07C37/78C07C39/235
CPCC07C45/78C07C45/82C07C45/84C07C7/005C07C7/04C07C7/06C07C37/685C07C37/74C07C37/78C07C49/08C07C15/06C07C39/235
Inventor 王雅琼贾全保陈栋吴栓许文林
Owner YANGZHOU UNIV
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