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High-flux filter method of composite polyphase catalysis materials

A technology for heterogeneous catalysis and screening methods, which is applied in chemical instruments and methods, analytical materials, radiation pyrometry, etc., and can solve problems such as imperfect methods and difficult comparisons.

Inactive Publication Date: 2004-06-16
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0013] Although the above HTS technology has solved the screening of the heterogeneous catalyst sample library to a certain extent, the methods are not perfect, and the operating conditions of all reactions are very different from the reaction conditions on the traditional single-tube reactor. Makes it difficult to compare combined screening results with traditional screening results

Method used

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  • High-flux filter method of composite polyphase catalysis materials
  • High-flux filter method of composite polyphase catalysis materials
  • High-flux filter method of composite polyphase catalysis materials

Examples

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Embodiment Construction

[0024] For the device used in this example, see figure 1 and figure 2 . The self-condensation reaction of acetone was investigated. The condensation reaction of acetone is as follows:

[0025]

[0026] In order to verify the feasibility and accuracy of the method, some reaction tubes were filled with the same catalyst, while some reaction tubes were filled with quartz sand for blank comparison. The loading amount of the catalyst was 0.3 g on average. The reaction tube containing the catalyst was loaded into the combined reaction furnace (in this experiment, the combined reaction furnace used was 80 channels), sealed with flexible graphite, and tightened. The upper cover was sealed, argon gas was introduced, and the temperature was raised to 550° C. and kept for 2 hours. After the activation is completed, lower to the reaction temperature (250°C), and use a feed pump to pump acetone into the preheating tube (the temperature of the preheating tube is 300°C), so that the...

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Abstract

A flux screening process of combination heterogeneous catalysis material, wherein the multi-path reacting gas produced in the reaction furnace enters the multi-port valve of the mass spectrum detecting system through the capillary tube, which selects any path of the gas to enter the mass spectrum detector for analysis, each of the capillary tube is connected to each path of the multi-port valve through a six-way valve, and the six-way valve connects to a gas chromatograph simultaneously, the calculation of reaction conversion rate is realized through the comparison of the mass-spectrometric data of each path of reacting gas and margin reaction tube.

Description

technical field [0001] The invention relates to a combined method for rapidly screening heterogeneous catalysts. Background technique [0002] Combinatorial chemistry is a new method for the rapid synthesis of a large number of compounds developed in the past 20 years. Combinatorial chemical synthesis technology has brought revolutionary changes to traditional organic synthetic chemistry, and is another revolution in the history of organic synthesis, so it is called one of the important scientific achievements in recent years. [0003] Attempts at combinatorial methods are not new. In 1963, Merrifield reported solid-phase peptide synthesis, which earned him the Nobel Prize in Chemistry in 1984. In the 1980s, with the introduction of the concept of hybrid splitting by Furka and the optimization of the coding scheme for solid-phase synthesis by Geysen and Houghten, the concept of combination was greatly developed. These early works laid the groundwork for today's successful ...

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Application Information

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IPC IPC(8): B01J37/00G01J3/00G01N1/26G01N33/00
Inventor 王华刘中民沈江汉
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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