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Catalyst Separation Process of Furfuryl Alcohol Reaction Liquid

A technology of reaction liquid and catalyst, applied in the field of catalyst separation process of furfuryl alcohol reaction liquid, can solve the problems of high labor intensity, frequent disassembly of plates and frames, and more volatilization of light components, and achieves the effect of reducing investment and use load

Active Publication Date: 2016-06-15
宏业生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Like this, just cause the light component of furfuryl alcohol and its by-product to volatilize more, not only pollute the environment, but also cause product yield to reduce
[0004] Some manufacturers use pressure filtration to separate the catalyst from the cooled reaction solution containing the catalyst, but because the reaction solution contains furfuryl alcohol resinized similar "sticky oil", the surface of the filter cloth is blocked, and the filter cloth has a short service life. Frequent removal of panels and frames results in high labor intensity and low production efficiency

Method used

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  • Catalyst Separation Process of Furfuryl Alcohol Reaction Liquid
  • Catalyst Separation Process of Furfuryl Alcohol Reaction Liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 2 As shown, a furfuryl alcohol reaction liquid catalyst separation process, furfural and catalyst mixed with hydrogen into the reactor 1, after the reaction into the separator 2 to separate the hydrogen, the reaction liquid into the heat exchanger 3 for cooling, through the heat exchanger 3 The cooled reaction solution enters into the first mixing tank 61, and a flocculant is added, which is made by mixing sodium polystyrene sulfonate and fatty alcohol polyoxyethylene ether AEO-5 in a mass ratio of 3:2, and adding The amount is 1.2% of the weight of the reaction solution, with 60r / min, stirring for 15min; pumped into the hydrocyclone 7 by the first delivery pump 51, and the supernatant in the hydrocyclone 7 enters the storage tank 9, and the hydrocyclone is separated The dope in the lower layer of the device 7 flows into the second mixing tank 62; in the second mixing tank 62, diatomite is mixed with 60 mesh and 200 mesh diatomite at a mass ratio of 2:1,...

Embodiment 2

[0021] Such as figure 2 As shown, a furfuryl alcohol reaction liquid catalyst separation process, furfural and catalyst mixed with hydrogen into the reactor 1, after the reaction into the separator 2 to separate the hydrogen, the reaction liquid into the heat exchanger 3 for cooling, through the heat exchanger 3 The cooled reaction solution enters into the first mixing tank 61, and a flocculant is added, which is formed by mixing sodium lignosulfonate and nonylphenol polyoxyethylene ether NP-10 in a mass ratio of 4:1, and adding The amount is 1.5% of the weight of the reaction solution, with 40r / min, stirring for 30min; pumped into the hydrocyclone 7 by the first delivery pump 51, and the supernatant in the hydrocyclone 7 enters the storage tank 9, and the hydrocyclone is separated The dope in the lower layer of the device 7 flows into the second mixing tank 62; in the second mixing tank 62, diatomite is mixed with 100 mesh and 500 mesh diatomite at a mass ratio of 3:1, and a...

Embodiment 3

[0023] Such as figure 2 As shown, a furfuryl alcohol reaction liquid catalyst separation process, furfural and catalyst mixed with hydrogen into the reactor 1, after the reaction into the separator 2 to separate the hydrogen, the reaction liquid into the heat exchanger 3 for cooling, through the heat exchanger 3 The reaction liquid after cooling enters in the first mixing tank 61, adds flocculant, and flocculant is sodium lignin sulfonate and fatty acid methyl ester ethoxylate FMEE and forms by the mass ratio of 3:1, and addition is 1.4% of the weight of the reaction solution, with 50r / min, stirred for 20min; pumped into the hydrocyclone 7 by the first delivery pump 51, the supernatant in the hydrocyclone 7 entered the storage tank 9, and the hydrocyclone 7 The dope of the lower layer flows into the second mixing tank 62; in the second mixing tank 62, diatomite is mixed by 80 mesh and 350 mesh diatomite in a mass ratio of 3:1, and the addition amount is 4% of the dope weight...

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Abstract

The invention discloses a furfuryl alcohol reaction solution catalyst separation technology and belongs to the technical field of furfuryl alcohol production. The furfuryl alcohol reaction solution catalyst separation technology is characterized in that 1, a Cu-Si catalyst is used in furfuryl alcohol production, the Cu-Si catalyst is CuO carried by SiO2, and according to positive charge characteristic of a metal oxide, a flocculating agent is added into a cooled reaction liquid with the catalyst and through adsorption bridging and net capturing effects, the catalyst in the material liquid and the sticking oil analogue subjected to furfuryl alcohol resinification are twined and coated to form large particles so that the problem that fine particles are separated difficultly by sedimentation is solved, 2, a cyclone hydraulic separator is used for separation and the thickened material on the bottom of the separator is subjected to press filtration so that an investment and a use load of a filter press are reduced, and 3, the thickened material which is obtained by cyclone hydraulic separation and contains the catalyst is added with diatomite so that the problem that the sticking oil analogue subjected to furfuryl alcohol resinification adheres to a filter cloth is solved, a filter cloth service life is prolonged and the filter cloth can be cleaned conveniently and easily.

Description

technical field [0001] The invention belongs to the technical field of furfuryl alcohol production, and in particular relates to a furfuryl alcohol reaction liquid catalyst separation process. Background technique [0002] The furfuryl alcohol reaction solution contains a solid catalyst. In order to recover the catalyst and prevent the reaction solution containing the catalyst from further reacting in the rectification tower to resinify the furfuryl alcohol, resulting in a decrease in the yield of the furfuryl alcohol product, the catalyst must be separated before the liquid can be injected into the rectification column. The column separates furfuryl alcohol. [0003] Such as figure 1 Shown, prior art is to enter reactor 1 after furfural and catalyzer are mixed with hydrogen, enter separator 2 to separate hydrogen after the reaction, and the reaction solution cooled by heat exchanger 3 is driven into settling tank 4 to settle and separate catalyst, separate The final upper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D307/44B01J23/72B01J23/94
CPCY02P20/584
Inventor 许志献周星奎史久亮温银华冯廷杰柳长松孙红献陈志勇魏丽丽
Owner 宏业生物科技股份有限公司