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Method for producing fluoride and white carbon black by accelerating hydrolysis of fluosilicate with ultrasonic waves

A fluorosilicate and ultrasonic technology, applied in the chemical industry, can solve the problems of high energy consumption, high equipment material requirements, and high raw material cost, and achieve the effects of lowering the reaction synthesis temperature, easy engineering scale-up, and convenient operation.

Inactive Publication Date: 2014-08-06
SUZHOU HENGRUI BIO PHARMA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods are mostly operated at high temperature, with high energy consumption and high requirements on equipment materials.
Another common method is to use solid KOH or K 2 CO 3 Neutralization via anhydrous HF, but the raw material cost of this method is high

Method used

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  • Method for producing fluoride and white carbon black by accelerating hydrolysis of fluosilicate with ultrasonic waves
  • Method for producing fluoride and white carbon black by accelerating hydrolysis of fluosilicate with ultrasonic waves
  • Method for producing fluoride and white carbon black by accelerating hydrolysis of fluosilicate with ultrasonic waves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] See figure 1 , with K 2 SiF 6 and KOH to prepare KF and SiO 2 .

[0049] The stirring device 6 is a rotor under the action of a magnetic stirrer. The ultrasonic generator is a probe type ultrasonic generator.

[0050] 1. Add 67g KOH and 400g water to Reaction Tank 1 to form a uniformly mixed KOH solution.

[0051] 2. Add 66 g of potassium fluorosilicate and 700 g of water to the reaction tank 5, turn on the stirring device 6, set the stirring intensity of the stirring device 6 to 400 r / min, so that the stirring effect of the solution in the reaction tank 5 on the stirring device 6 Down, mix well.

[0052] 3. Add the lye in the reaction tank 1 to the reaction tank 5 via the metering pump 3 and the flow meter 2.

[0053] 4. Turn on the ultrasonic generator 7, adjust the constant temperature of the ultrasonic wave to 55°C, and make the ultrasonic wave generated by the ultrasonic probe 8 act on the solution in the reaction tank 5.

[0054] 5. When the fluoride ion c...

Embodiment 2

[0062] See figure 2 . with K 2 SiF 6 and KOH to prepare KF and SiO 2 .

[0063] The stirring device 6 is a paddle mixer, and the ultrasonic generator 7 is an ultrasonic cleaning machine.

[0064] 1. Add 6.7g KOH and 20g water to Reaction Tank 1 to form a uniformly mixed KOH solution.

[0065] 2. Add 6.6g potassium fluorosilicate and 90g water to the reaction tank 5, turn on the stirring device 6, set the stirring intensity of the stirring device 6 to 400r / min, so that the solution in the reaction tank 5 can be stirred by the stirring device 6 Down, mix well.

[0066] 3. Turn on the ultrasonic generator 7, the ultrasonic intensity of the ultrasonic cleaning machine is 100 watts, and the ultrasonic temperature is set to a constant temperature of 36 °C.

[0067] 4. Add the solution in the reaction tank 1 to the reaction tank 5, so that the mixed solution reacts under the action of ultrasonic waves to generate potassium fluoride and SiO 2 .

[0068] 5. Measure the fluori...

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Abstract

The invention discloses a method for producing fluoride and silicon dioxide by accelerating hydrolysis of fluosilicate with ultrasonic waves. The method has the advantages that mixing of a solution is accelerated by adopting the aviation effect of the ultrasonic waves, the hydrolysis rate of the fluosilicate is increased, the reaction time is short, the reaction temperature is low, the hydrolysis process is complete, the purity of the generated fluoride and SiO2 products is high and the like. Equipment used by the method disclosed by the invention is simple, and the operation is simple and convenient.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a method for producing fluoride and co-producing silicon dioxide with fluorosilicate under the action of ultrasonic waves. Background technique [0002] Both white carbon black and fluoride are important chemical raw materials. Silica is widely used in tires, silicone rubber, toothpaste, paint industry and new energy and other fields. Potassium fluoride is mainly used as analytical reagent, complex forming agent, glass engraving, food preservation, and insecticide. Ammonium fluoride can be used as a glass etchant, a chemical polishing agent for metal surfaces, a disinfectant for winemaking, an antiseptic, a mordant for fibers, and also for extracting rare elements. A variety of processes are currently available for the production of fluorides. Taking KF as an example, its preparation method includes: using fluorite as raw material, making fluorite and K 2 CO 3 ...

Claims

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Application Information

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IPC IPC(8): C01B33/12C01D3/02
Inventor 何菲吴魁旺邓强
Owner SUZHOU HENGRUI BIO PHARMA TECH
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