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High-temperature steam-microwave-assisted impinging stream reaction device and composite material preparation method

A technology of impinging flow reaction and high-temperature steam, which is applied in chemical methods, chemical instruments and methods, and manufacturing of hybrid/electric double-layer capacitors for making liquids react with liquids. Slow mixing rate and other problems, to achieve the effect of promoting the kinetics of the precipitation reaction, strengthening the micro-mixing of the body, and improving the uniformity and repeatability

Active Publication Date: 2021-11-09
合肥净龙环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the microscopic mixing rate of the stirred tank reactor is slow, and the nucleation, growth and agglomeration of particles have already started before the formation of uniform supersaturation, so it is difficult to obtain nanoparticles with uniform shape and size.

Method used

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  • High-temperature steam-microwave-assisted impinging stream reaction device and composite material preparation method
  • High-temperature steam-microwave-assisted impinging stream reaction device and composite material preparation method
  • High-temperature steam-microwave-assisted impinging stream reaction device and composite material preparation method

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preparation example Construction

[0052] The present invention also provides a preparation method for synthesizing Fe-Co-S / RGO composite material based on the above-mentioned high-temperature steam-microwave assisted impinging flow reaction device, comprising the following steps:

[0053] (1) Preparation of graphene oxide (GO) dispersion, Fe 2+ / Co 2+ Mixture and Na 2 S 2 o 3 solution. The prepared GO dispersion concentration is 0.2mol / L, Fe 2+ / Co 2+ The solution is FeSO with a total molar concentration of 0.01 mol / L 4 / CoSO 4 Mixed aqueous solution in which the molar ratio of the two metals is Fe 2+ / Co 2+ = 1 / 2. And Na 2 S 2 o 3 The concentration of the solution is 0.01~0.03mol / L, such as 0.01mol / L, 0.015mol / L, 0.02mol / L, 0.025mol / L and 0.03mol / L; wherein the preferred Na 2 S 2 o 3 The concentration is 0.02 mol / L.

[0054] (2) Set the volume flow rate of A-type fluid advection pump 1, B-type fluid advection pump 2 and C-type fluid advection pump 3; set the temperature of high-temperature st...

Embodiment example

[0059] (1) prepare 0.2mol / L graphene oxide (GO) dispersion liquid respectively, the total molar concentration is 0.01mol / L FeSO 4 / CoSO 4 Mixture (Fe 2+ / Co 2+ =1 / 2), and 0.02mol / L of Na 2 S 2 o 3 solution.

[0060] (2) The volume flow rate of A-type fluid advection pump 1, B-type fluid advection pump 2 and C-type fluid advection pump is set to 120mL / min, 120mL / min and 120mL / min, respectively. Start three advection pumps at the same time, Na 2 S 2 o 3 solution, Fe 2+ / Co 2+ The solution and GO dispersion enter the high-temperature steam-microwave-assisted impinging flow reaction device through the A-type fluid conduit 901, B-type fluid conduit 902, and C-type fluid conduit 903, respectively, and collide at a high speed at the four-way body 905 to obtain the precursor. During the whole process, the temperature of the high-temperature steam component 6 is set at 120° C., the temperature of the microwave cavity 401 is set at 160° C.; the power of the microwave cavity 4...

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Abstract

The invention provides a high-temperature steam-microwave-assisted impinging stream reaction device for synthesizing a composite material. The high-temperature steam-microwave-assisted impinging stream reaction device comprises an A-type fluid constant-flux pump, a B-type fluid constant-flux pump, a C-type fluid constant-flux pump, a microwave generation assembly, a thermodetector assembly, a high-temperature steam assembly, a stirrer, a rack and a four-way assembly. The steam-microwave assisted impinging stream reaction device integrates a microwave field and micro impinging stream strengthening, not only promotes movement and mutual collision of reactant molecules, but also can strengthen micromixing of fluids and promote precipitation reaction kinetics, thereby effectively improving the instantaneous high level and uniform distribution performance of supersaturation of a material synthesis reaction system; and and the device has important significance for developing a green, economic and efficient material synthesis technology. The invention also provides a method for synthesizing the composite material based on the high-temperature steam-microwave-assisted impinging stream reaction device.

Description

technical field [0001] The invention belongs to the field of chemical process intensification, and in particular relates to a high-temperature steam-microwave assisted impinging flow reaction device and a composite material preparation method. Background technique [0002] The key to preparing nanomaterials by precipitation method is to allow the reaction system to establish an appropriate and uniform supersaturation before crystal nucleation, and to precisely control it. However, the microscopic mixing rate of the stirred tank reactor is slow, and the nucleation, growth and agglomeration of particles have already started before the formation of uniform supersaturation, so it is difficult to obtain nanoparticles with uniform shape and size. The impinging flow reactor is a new type of process intensification device that improves the microscopic mixing performance of fluids through the coaxial, reverse high-speed impact of two streams of fluids, and can be used for the control...

Claims

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Application Information

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IPC IPC(8): B01J19/12B01J19/00B01J14/00H01G11/86H01G11/36H01G11/30
CPCB01J19/126B01J19/0013B01J19/0093B01J14/00H01G11/86H01G11/36H01G11/30B01J2219/00873B01J2219/00889B01J2219/00977B01J2219/00961
Inventor 张青程雷勇周志明王舜唐兆聪钱宇丹魏鑫磊
Owner 合肥净龙环保科技有限公司