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Electrothermal microreactor preparation system

A micro-reactor, preparation system technology, applied in chemical instruments and methods, chemical/physical/physical chemical processes, chemical/physical processes, etc., can solve the problems of uneven heating, bulky equipment, unfavorable integration, etc. The effect of heating time, friendly working environment and convenient control

Inactive Publication Date: 2011-06-08
NANJING TECH UNIV
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to design a microreactor with low cost, good working environment, easy control of operating conditions and favorable processing in view of the shortcomings of uneven heating and large equipment volume that are not conducive to integration in existing microreactors that use oil bath heating. electrothermal microreactor preparation system

Method used

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  • Electrothermal microreactor preparation system
  • Electrothermal microreactor preparation system
  • Electrothermal microreactor preparation system

Examples

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Effect test

reference example 1

[0039] Cadmium precursor preparation: get 0.6ml oleic acid (0A, 90%) and 3.4ml octadecene (ODE, 90%), dissolve 25.68mg cadmium oxide powder (Cd0, 99.9%), heat to 200 on the magnetic heating stirrer °C (conducive to full dissolution), a yellow transparent solution was obtained and cooled to about 40 °C. Selenium precursor preparation: take n-trioctylphosphine (TOP, 90%) 1.8ml and 2.2ml ODE, dissolve selenium powder (Se, 99.5%) 78.96mg, heat to 100 ℃ on the magnetic heating stirrer, obtain colorless transparent solution, and cooled to about 40°C. When the reaction temperature is set to 260°C and the reaction residence time is 30s, 45s, 60, and 120s, the diameters of the obtained quantum dots are 4.2nm, 4.3nm, 4.4nm, and 4.6nm. As a result, the color gradually deepened to reddish-brown with the prolongation of the reaction residence time, indicating that under different reaction time conditions, CdSe quantum dots with different particle sizes were obtained.

reference example 2

[0041] Cadmium precursor preparation: get 0.6ml oleic acid (0A, 90%) and 3.4ml octadecene (ODE, 90%), dissolve 25.68mg cadmium oxide powder (CdO, 99.9%), heat to 200 on the magnetic heating stirrer °C (conducive to full dissolution), a yellow transparent solution was obtained and cooled to about 40 °C. Selenium precursor preparation: take n-trioctylphosphine (TOP, 90%) 1.8ml and 2.2ml ODE, dissolve selenium powder (Se, 99.5%) 78.96mg, heat to 100 ℃ on the magnetic heating stirrer, obtain colorless transparent solution, and cooled to about 40°C. When the reaction temperature is set to 300°C and the reaction residence time is 30s, 45s, 120s, the diameters of the obtained quantum dots are 4.2nm, 4.2nm, 4.6nm. The results are similar to those of Reference Example 1, and the color gradually deepens to reddish-brown with the prolongation of the reaction residence time, indicating that CdSe quantum dots with different particle sizes are obtained under different reaction time conditi...

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Abstract

The invention relates to an electrothermal microreactor preparation system which is characterized by comprising a peristaltic pump, a micro-mixer, an intelligent PID temperature controller, a micro fluid reactor and an electric heater, wherein the input end of the peristaltic pump is connected with different reaction material containers through two or more than two connecting pipes; the output end of the peristaltic pump is connected with the input end of the micro-mixer through a connecting pipe; the output end of the micro-mixer is connected with the input end of the micro fluid reactor through a connecting pipe; the micro fluid reactor (8) is connected with a product collecting device and mounted on the electric heater; and the electric heater is electrically connected with the intelligent PID temperature controller; and a liquid supply channel in the micro fluid reactor is provided with a micro temperature sensor. The invention can be used as a tool for the production and researchof continuous quantum points. In the production and research of continuous quantum points, the invention heats evenly, can work in the environment with high temperature, has environmental friendly working conditions, is stable and safe, and has low cost.

Description

technical field [0001] The invention relates to a micro-chemical process machinery, especially a micro-reactor-based medical and chemical product preparation system with low cost, simple control and high precision, and a friendly working environment. Experiments and fabrication of electrothermal microreactor preparation systems. Background technique [0002] As we all know, the strengthening channel of the current process is divided into two branches, one is the super-large equipment, the application of high temperature and high pressure and critical conditions; the other is the development of miniaturization of equipment. The former has a large capital investment, and the actual production capacity data and small batch test data will have a large discrepancy, while the miniaturization has the advantages of less investment and stable reaction, especially the conversion rate and selectivity of the reaction at the micro scale are significantly improved. The thermal coefficien...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00
Inventor 张锴涂善东巩建鸣
Owner NANJING TECH UNIV
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