Dynamic crystallization equipment for potassium fluotantalate

Abstract

The invention belongs to the technical field of chemical reaction vessels, and relates to dynamic crystallization equipment for potassium fluotantalate. Cold water enters the circuitous hole through the cold medium inlet pipe, the cooling capacity of the cold water is transmitted to the stirring blades and the surrounding potassium fluotantalate solution, and the cold water is discharged from an outlet of the circuitous hole, then enters the connecting vertical pipe, flows upwards, enters the water return ring through the water return elbow and the water passing hole of the sealing ring, and flows into the water receiving ring through the water drainage hole of the water return ring. And the water is buffered and temporarily stored in the space between the water return ring and the water receiving ring, and then flows out of the tank body through the water receiving ring drain hole and the drain pipe. The laser particle analyzer detects the size of particles in the potassium fluotantalate solution in real time and sends information to the PLC, and the PLC controls the rotating speed of the stirring blade assembly through the motor according to the received information. The invention has the advantages of high heat exchange efficiency, uniform size of crystal grains separated by crystallization, good product quality, no serious crystal adhesion, automatic detection of granularity size, automatic adjustment of stirring speed, and small cleaning workload.

Description

technical field [0001] The invention belongs to the technical field of chemical reaction vessels, relates to a crystallizing vessel, and in particular relates to a dynamic crystallizing device for potassium fluorotantalate. Background technique [0002] Potassium fluorotantalate, an inorganic salt with the chemical formula KTa 2 F 7 , is a white crystalline powder, slightly soluble in cold water, hydrofluoric acid, soluble in hot water, mainly used for making metal tantalum and other tantalum compounds, also used as catalyst, reagent, is a very important chemical raw material. [0003] Potassium fluorotantalate is synthesized in water, and the obtained potassium fluorotantalate is an aqueous solution of potassium fluorotantalate. The temperature is between 90 and 100 degrees, and then the aqueous potassium fluorotantalate is cooled slowly and evenly, and the potassium fluorotantalate becomes a saturated solution, and Crystallization out. [0004] In order to obtain potass...

AI Technical Summary

Problems solved by technology

When entering the next process, it is easier for small particles to be dissolved and evenly mixed with other items, while large ones need to be broken first before being dissolved or evenly mixed with other items, which increases the process

However, no one has come up with a better solution so far

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