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A method for preparing diphenyl ether derivatives by an improved microchannel process

A technology of microchannel and diphenyl ether, which is applied in the preparation of organic compounds, chemical instruments and methods, preparation of amino hydroxyl compounds, etc., can solve the problems of reduced reaction efficiency and achieve the effect of increasing efficiency, improving reaction rate and efficiency

Active Publication Date: 2021-04-30
SHANDONG GUANSEN POLYMER MATERIAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is aimed at the solution of catalyst poisoning itself and the resulting technical problem of reduced reaction efficiency, rather than the problem faced by the application of palladium / carbon catalyst in microchannel reaction equipment

Method used

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  • A method for preparing diphenyl ether derivatives by an improved microchannel process
  • A method for preparing diphenyl ether derivatives by an improved microchannel process
  • A method for preparing diphenyl ether derivatives by an improved microchannel process

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Embodiment Construction

[0037] Hereinafter, the present invention is described in more detail to facilitate understanding of the invention.

[0038] Before the narration of the specific embodiment, the source of some of the main raw materials used in this description has been explained in the basic situation. It should be noted that the sources of raw materials described in the specific embodiments herein are non-limiting, and those skilled in the art can select appropriate raw materials and testing equipment to carry out related tests and obtain corresponding results according to the inspiration and teaching of the present invention , for raw materials that do not specify specific manufacturers or routes, those skilled in the art are more able to select raw materials that meet the corresponding requirements as the reaction starting material according to the disclosure content and requirements of this specification. If the reaction raw materials for synthesizing some compounds come from the primary p...

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Abstract

The invention relates to a method for preparing diphenyl ether derivatives by an improved microchannel process. The method comprises preparing a slurry containing diphenyl ether raw materials, palladium carbon catalyst, and a solvent according to a certain ratio, and the slurry is pumped by a slurry pump. The slurry is continuously input into the microchannel reactor; at the same time, hydrogen is introduced into the microchannel reactor through the hydrogen gas feeding part; wherein in the configured slurry, about 0.1 wt% to 2.0 wt% of diluted alkaline material. According to the process route of the present invention, the continuous production performance of the preparation of diphenyl ether derivatives can be further improved, and the reaction steps of the process can be carried out smoothly and unimpeded under the state of continuous production for a long time. And according to the process of the present invention, there is no need to change the existing production devices and equipment of the existing industrialization or laboratory level.

Description

technical field [0001] The invention relates to and provides a preparation process of chemical raw materials, in particular, relates to a preparation method of organic chemical raw materials (diphenyl ether and derivatives thereof). More specifically, the present invention relates to a method for preparing diphenyl ether derivatives (such as 4,4'-diaminodiphenyl ether) by a microchannel process. Background technique [0002] Diphenyl ether derivatives are an important class of chemical raw materials, which can not only be used as raw materials for terminal chemical products, but also in many fields such as biology and medicine. Among them, 4,4'-diaminodiphenyl ether is referred to as 4,4'-ODA (similarly can be called 4'-diaminophenyl ether; 4,4'-diaminodiphenyl ether p-aminodiphenyl ether; 4, 4-diaminodiphenyl ether; 4,4'-oxydiphenylamine; 4,4'-diaminodiphenyl ether; 4,4'-diaminodiphenyl ether), can be used as the most important polyimide material one of the raw materials....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C213/02C07C217/90B01J19/00
CPCB01J19/0093C07C213/02C07C217/90
Inventor 巴广芝李晓斐盖新世安娜
Owner SHANDONG GUANSEN POLYMER MATERIAL TECH CO LTD
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