A kind of production method of ethyl trifluoroacetoacetate

Abstract

The invention provides a production method of ethyl trifluoroacetoacetate, which relates to the technical field of chemical methods, and solves the problem that the defoaming process of ethyl trifluoroacetoacetate cannot be adaptively adjusted according to the height of the liquid level; the foam is also Composed of liquid medicine, the existing method cannot realize the recovery of trace liquid in the foam; it cannot realize the synchronous mixing of multiple structures during mixing, and it cannot be linked to achieve other functions while mixing. A method for producing ethyl trifluoroacetoacetate, comprising a barrel body; a defoaming structure is installed on the barrel body, and an absorption structure is also installed on the barrel body. Because the sliding rod A is welded on the bottom surface of the barrel, and the sliding rod A is also sleeved in the straw; the sliding block is a floating structure, and the sliding block is slidably connected to the sliding rod A; the top surface of the sliding block is flush with the liquid surface, and The sliding block forms the self-adjusting blocking structure of the straw, so that the sliding block can automatically adjust following the height of the liquid level, thereby realizing the self-adjusting suction bubble.

Description

technical field [0001] The invention belongs to the technical field of chemical engineering methods, and more specifically relates to a production method of ethyl trifluoroacetoacetate. Background technique [0002] Ethyl trifluoroacetoacetate, also known as "ethyl-4,4,4-trifluoroethyl ester", is a pesticide intermediate, a colorless and transparent liquid at room temperature, with a boiling point of 130-132°C, soluble in water , ethanol, benzene and other organic solvents. Ethyl trifluoroacetoacetate has an active methylene group, which can form a stable carbanion. [0003] For example, the application number: CN201820723608.0, the utility model discloses a medicament mixing device for medicament production and processing, including a casing, a base and a feeding port, the base is welded to the bottom of the casing, and the feeding port is embedded in the On the top surface of the casing, a driver is inlaid on one side of the casing, and the drive shaft of the driver is s...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above-mentioned technical problems, the present invention provides a kind of production method of ethyl trifluoroacetoacetate, to solve the existing one, the defoaming structure flexibility of the existing method is relatively poor, can not according to the liquid level when defoaming The height is adaptively adjusted; moreover, the foam is also composed of liquid medicine, and the existing method cannot realize the recovery of a small amount of liquid in the foam; finally, the existing method cannot realize synchronous mixing of multiple structures during mixing, and does not The problem of being able to link to achieve other functions while mixing

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