Preparation method of liquid potassium ferrate by utilizing ultrasonic electrolysis

Abstract

The invention discloses a preparation method of liquid potassium ferrate by utilizing ultrasonic electrolysis. The method adopts an electrolysis device, which comprises an ultrasonic wave generator and an electrolytic tank, wherein the electrolytic tank is arranged in the ultrasonic wave generator and is divided into a cathode chamber and an anode chamber by a perfluorinated ion membrane. The method comprises the following steps: (1) preparing anode electrolyte, wherein the solvent is water, the potassium hydroxide concentration is 14 to 18 mol / L, and the potassium chloride concentration is 0.5 to 2 mol / L; and preparing cathode electrolyte, wherein the solvent is water, the potassium hydroxide concentration is 1 to 3 mol / L, and the potassium chloride concentration is 0.5 to 2 mol / L; (2) starting the ultrasonic wave generator during the electrolysis process, controlling the current density in a range of 50 to 200 mA / cm2 and the temperature in a range of 30 to 40 DEG C, and obtaining liquid perfluorinated ion membrane after electrolysis. The method has the advantages of simple steps, convenient operation, and high product concentration.

Description

technical field

[0001] The invention relates to the technical field of potassium ferrate preparation, in particular to a method for preparing liquid potassium ferrate by ultrasonic electrolysis. Background technique

[0002] With the rapid development of global industrialization, the world's demand for water is also increasing, resulting in more and more serious water pollution. Water pollution has seriously affected people's health and life, and water pollution control has become one of the most concerned issues in the world's environmental governance. Due to the increase of refractory toxic and harmful substances in water, it is more and more urgent to study new and efficient water treatment technologies. In the past century, chlorine-based disinfectants have been the mainstream products in water treatment, while aluminum-based water purifiers have dominated the purification and flocculation process. However, recent studies have found that chlorine-based disinfectants wil...

Examples

Embodiment 1

[0049] An electrolysis device is adopted, and the electrolysis device comprises: an ultrasonic generator: an electrolytic cell placed in the ultrasonic generator, and the electrolytic cell is separated into a cathode chamber and an anode chamber by a perfluorinated ion membrane;

[0050] Configure 16mol / L potassium hydroxide solution as anolyte, 2mol / L potassium hydroxide solution as catholyte, adopt perfluorinated ion membrane, use one cathode compartment and one anode compartment. The cathode is placed in the cathode chamber, the anode is placed in the anode chamber, the cathode is made of pure nickel plate, the anode is made of iron mesh, the catholyte is added to the cathode chamber, and the anolyte is added to the anode chamber; The voltage is 12V, the power of the ultrasonic generator is 600W, and the frequency is 40kHz. Inside the anode chamber, there is a cooling pipe surrounded by a spiral, and cold water is introduced into the cooling pipe to keep the temperature of ...

Embodiment 2

[0052] An electrolysis device is adopted, and the electrolysis device comprises: an ultrasonic generator: an electrolytic cell placed in the ultrasonic generator, and the electrolytic cell is separated into a cathode chamber and an anode chamber by a perfluorinated ion membrane;

[0053] Configure 16mol / L potassium hydroxide solution as anolyte, 2mol / L potassium hydroxide solution as catholyte, adopt perfluorinated ion membrane, use one cathode compartment and one anode compartment. The cathode is placed in the cathode chamber, the anode is placed in the anode chamber, the cathode is made of pure nickel plate, the anode is made of iron mesh, the catholyte is added to the cathode chamber, and the anolyte is added to the anode chamber; The voltage is 12V, the power of the ultrasonic generator is 600W, and the frequency is 40kHz. Inside the anode chamber, there is a cooling pipe surrounded by a spiral, and cold water is introduced into the cooling pipe to keep the temperature of ...

Embodiment 3

[0055] Using an electrolysis device, the electrolysis device includes:

[0056] Ultrasonic generator:

[0057] Placed in the electrolytic cell of the ultrasonic generator, the electrolytic cell is separated into a cathode chamber and two anode chambers by two perfluorinated ion membranes, and an anode chamber is distributed on both sides of the cathode chamber, that is, the two perfluorinated ion membranes will The electrolytic cell is divided into three parts, which are the anode chamber, the cathode chamber and the anode chamber in sequence.

[0058] Configure 16 mol / L potassium hydroxide solution as the anolyte, 2 mol / L potassium hydroxide solution as the catholyte, add potassium chloride in both the cathode and anode chambers, and the concentration is 1 mol / L, using perfluorinated ion membrane, One cathode compartment and two anode compartments are used. The cathode is placed in the cathode chamber, the anode is placed in the anode chamber, the cathode is made of pure ni...

technical field

[0001] The invention relates to the technical field of potassium ferrate preparation, in particular to a method for preparing liquid potassium ferrate by ultrasonic electrolysis. Background technique

[0002] With the rapid development of global industrialization, the world's demand for water is also increasing, resulting in more and more serious water pollution. Water pollution has seriously affected people's health and life, and water pollution control has become one of the most concerned issues in the world's environmental governance. Due to the increase of refractory toxic and harmful substances in water, it is more and more urgent to study new and efficient water treatment technologies. In the past century, chlorine-based disinfectants have been the mainstream products in water treatment, while aluminum-based water purifiers have dominated the purification and flocculation process. However, recent studies have found that chlorine-based disinfectants wil...

Examples

Embodiment 1

[0049] An electrolysis device is adopted, and the electrolysis device comprises: an ultrasonic generator: an electrolytic cell placed in the ultrasonic generator, and the electrolytic cell is separated into a cathode chamber and an anode chamber by a perfluorinated ion membrane;

[0050] Configure 16mol / L potassium hydroxide solution as anolyte, 2mol / L potassium hydroxide solution as catholyte, adopt perfluorinated ion membrane, use one cathode compartment and one anode compartment. The cathode is placed in the cathode chamber, the anode is placed in the anode chamber, the cathode is made of pure nickel plate, the anode is made of iron mesh, the catholyte is added to the cathode chamber, and the anolyte is added to the anode chamber; The voltage is 12V, the power of the ultrasonic generator is 600W, and the frequency is 40kHz. Inside the anode chamber, there is a cooling pipe surrounded by a spiral, and cold water is introduced into the cooling pipe to keep the temperature of ...

Embodiment 2

[0052] An electrolysis device is adopted, and the electrolysis device comprises: an ultrasonic generator: an electrolytic cell placed in the ultrasonic generator, and the electrolytic cell is separated into a cathode chamber and an anode chamber by a perfluorinated ion membrane;

[0053] Configure 16mol / L potassium hydroxide solution as anolyte, 2mol / L potassium hydroxide solution as catholyte, adopt perfluorinated ion membrane, use one cathode compartment and one anode compartment. The cathode is placed in the cathode chamber, the anode is placed in the anode chamber, the cathode is made of pure nickel plate, the anode is made of iron mesh, the catholyte is added to the cathode chamber, and the anolyte is added to the anode chamber; The voltage is 12V, the power of the ultrasonic generator is 600W, and the frequency is 40kHz. Inside the anode chamber, there is a cooling pipe surrounded by a spiral, and cold water is introduced into the cooling pipe to keep the temperature of ...

Embodiment 3

[0055] Using an electrolysis device, the electrolysis device includes:

[0056] Ultrasonic generator:

[0057] Placed in the electrolytic cell of the ultrasonic generator, the electrolytic cell is separated into a cathode chamber and two anode chambers by two perfluorinated ion membranes, and an anode chamber is distributed on both sides of the cathode chamber, that is, the two perfluorinated ion membranes will The electrolytic cell is divided into three parts, which are the anode chamber, the cathode chamber and the anode chamber in sequence.

[0058] Configure 16 mol / L potassium hydroxide solution as the anolyte, 2 mol / L potassium hydroxide solution as the catholyte, add potassium chloride in both the cathode and anode chambers, and the concentration is 1 mol / L, using perfluorinated ion membrane, One cathode compartment and two anode compartments are used. The cathode is placed in the cathode chamber, the anode is placed in the anode chamber, the cathode is made of pure ni...

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