Production method of ethyl trifluoroacetoacetate

Abstract

The invention provides a production method of ethyl trifluoroacetoacetate, relates to the technical field of chemical engineering methods, and solves the problem that the ethyl trifluoroacetoacetate cannot be adaptively adjusted according to the height of a liquid level in a defoaming process in an inspection process, foam is also composed of liquid medicine, and an existing method cannot achieverecovery of trace liquid in the foam, synchronous mixing of multiple structures cannot be achieved in the mixing process, and linkage cannot be achieved while mixing is conducted to achieve other functions. The production method of ethyl trifluoroacetoacetate comprises a barrel body, a defoaming structure is installed on the barrel body, and an absorption structure is further installed on the barrel body. A sliding rod A is welded to the bottom end face of the barrel body and further connected into the suction pipe in a sleeved mode. The sliding block is of a floating structure and is connected to the sliding rod A in a sliding manner; the top end face of the sliding block is flush with the liquid level, the sliding block forms a self-adjusting blocking structure of the suction pipe, and therefore the sliding block can be automatically adjusted along with the height of the liquid level, and self-adjusting type bubble suction is achieved.

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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