Reaction device suitable for preparing hydrogen fluoride from calcium fluoride

Abstract

The invention relates to a reaction device suitable for preparing hydrogen fluoride from calcium fluoride. The reaction device comprises a reactor and a heat energy device, wherein the reactor is of fully sealed vertical type hollow structure; a first material inlet and a gas outlet are formed in the top part of the reactor; a material output outlet is formed in the bottom part of the reactor; thereactor is also internally provided with a stirrer and a material bearing device; the heat energy device is used for providing heat energy for the material bearing device; the heat energy device comprises a thermal medium input pipe and a thermal medium output pipe; a heat transfer layer of a sealed structure is arranged on the bottom surface of the material bearing device; the thermal medium input pipe and the thermal medium output pipe are respectively communicated with the heat transfer layer. According to the reaction device disclosed by the invention, the heat transfer area is larger, and a heat transfer effect is better; energy consumption is reduced; power consumption is reduced under the same productivity; the reaction device is suitable for producing the hydrogen fluoride from calcium fluoride fine powder; flying dust cannot be generated while entering the reactor, a hydrogen fluoride gas is discharged out of the reactor after passing through wet powder, and dust cannot be taken away.

Description

technical field [0001] The invention relates to the technical field of hydrogen fluoride preparation devices, in particular to a reaction device suitable for preparing hydrogen fluoride from calcium fluoride. Background technique [0002] Hydrogen Fluoride, chemical formula HF, molecular weight 20.01, soluble in water and ethanol. Anhydrous hydrogen fluoride (abbreviated as AHF) is a colorless transparent liquid under low temperature or pressure, with a boiling point of 19.4°C, a melting point of -83.37°C, and a density of 1.008g / cm 3 (water=1). It is highly volatile into white smoke at room temperature and normal temperature. Its chemical properties are extremely active and can react with alkalis, metals, oxides and silicates. Hydrogen fluoride is the basis of modern fluorine chemical industry and the most basic raw material for the production of elemental fluorine, various fluorine refrigerants, new fluorine-containing materials, inorganic fluoride salts, and various or...

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Problems solved by technology

[0007] The present invention also provides a reaction device suitable for preparing hydrogen fluoride from calcium fluoride fine powder, so as to solve the problem that the calcium fluoride fine powder in the prior art is likely to cause blockage of the rotary reactor and subsequent process pipeline equipment

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