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Production device and method for continuously producing 2-bromo-3, 3, 3-trifluoropropene

A technology for trifluoropropene and products, which is applied in the field of continuous production of 2-bromo-3,3,3-trifluoropropene, can solve the problems of low efficiency and yield, poor quality, etc., and improve product quality and The effect of stability, shortening the production cycle, and improving the elimination reaction speed

Active Publication Date: 2020-07-31
新元化学(山东)股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, especially the problems that the current preparation method of 2-bromo-3,3,3-trifluoropropene cannot be produced continuously, resulting in low efficiency yield and poor quality, the present invention provides an environmentally friendly process, preparation Production device and method for industrialized continuous large-scale production of 2-bromo-3,3,3-trifluoropropene with high efficiency and stable product quality

Method used

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  • Production device and method for continuously producing 2-bromo-3, 3, 3-trifluoropropene

Examples

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Effect test

Embodiment 1

[0038] A device for continuously producing 2-bromo-3,3,3-trifluoropropene, which includes an addition reaction system, an elimination reaction system, a rough separation system and a rectification purification system;

[0039] The addition reaction system comprises a bromine metering tank 1, a trifluoropropylene metering tank 2, an addition reactor 3, a Venturi injector 4, a built-in light source 5, an addition reaction circulation pump 6, and the Venturi injection The device 4 is arranged on the upper end of the addition reactor 3, and the built-in light source 5 is arranged in the addition reactor 3; the bromine metering tank 1 and the trifluoropropylene metering tank 2 are respectively communicated with the suction port of the Venturi injector 4, The outlet at the lower end of the addition reactor 3 communicates with the inlet of the Venturi injector 4 through the addition reaction circulation pump 6 to form an injection circulation reaction loop;

[0040] Described elimina...

Embodiment 2

[0045] A device for continuous production of 2-bromo-3,3,3-trifluoropropene as described in Example 1, the difference is: the elimination reactor 10 is composed of a tower reactor, using jacketed steam Heated and has a built-in spoiler. The number of built-in light sources 5 provided inside the addition reactor 3 is three, and the power of the built-in light sources 5 is 2000W.

Embodiment 3

[0047] A kind of continuous production device of 2-bromo-3,3,3-trifluoropropene as described in Example 1, the difference is: the described elimination reactor 10 is made up of tubular reactor, adopts jacketed steam Heated and has a built-in spoiler. The number of built-in light sources 5 provided inside the addition reactor 3 is five, and the power of the built-in light sources 5 is 1500W.

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Abstract

The invention discloses a production device and method for continuously producing 2-bromo-3, 3, 3-trifluoropropene. The device comprises an addition reaction system, an elimination reaction system, acoarse separation system and a rectification purification system; the addition reaction system is a jet loop reaction system, an addition reaction product 1, 2-dibromo-3, 3, 3-trifluoropropane is adopted as a reaction circulating solvent, and an addition reaction circulating pump circulates to form a jet reaction loop; the addition reactor adopts a venturi jet reactor, and at least one light source is arranged in the reactor. The coarse separation system adopts a flash evaporation continuous separation mode. And the rectification purification system adopts a two-tower continuous pressurized rectification device. The method disclosed by the invention is realized through the production device, has the advantages of simple process, high preparation efficiency, high raw material recycling rate, low possibility of deterioration of the product, stable quality and the like, can realize automatic control of the whole process, saves labor, and is suitable for continuous industrial production of2-bromo-3, 3, 3-trifluoropropene products.

Description

technical field [0001] The invention relates to the technical field of bromofluoroolefin production, in particular to a production device and method for continuously producing 2-bromo-3,3,3-trifluoropropene. Background technique [0002] 2-Bromo-3,3,3-trifluoropropene (BTP), a degradable bromocarbon, is a new type of clean and efficient fire extinguishing agent. 2-Bromo-3,3,3-trifluoropropene has superior performance as a fire extinguishing agent, refrigerant and other materials. Compared with currently widely used fire extinguishing materials such as trifluoromethane and heptafluoropropane, its performance is much superior. The consumption potential value (0.0028) and the global warming potential value (0.005) are far lower than the Halon series fire extinguishing agent (7.1 and 1890), and it is easy to degrade in the environment. Conductivity and other advantages, especially when mixed with inert gas for fire extinguishing, the amount of inert gas can be reduced by 50%, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C21/18C07C17/25C07C17/38C07C17/383
CPCC07C17/25C07C17/38C07C17/383C07C17/04C07C21/18C07C19/14
Inventor 解乐福邵军强杜辉周建民丛飞李成林
Owner 新元化学(山东)股份有限公司
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