A method for preparing ferrate based on carbon sheet iron plating

A technology of ferrate and iron plating, applied in the direction of electrolysis components, electrodes, electrolysis process, etc., can solve the problems of complex operation procedures, difficult production scale, large energy consumption, etc., achieve high activity performance, increase yield, improve The effect of specific surface area

Active Publication Date: 2019-02-22
福建省东吴环保科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Although the fusion method can be mass-produced, the equipment requirements are harsh and the operation is dangerous; the hypochlorite oxidation method is low in cost, but the operation procedure is complicated, the pollution is large, and the production is difficult to scale; the electrolysis method has low yield and high energy consumption. However, compared with the high-temperature melting oxidation method and hypochlorite oxidation method, the electrolysis method is simple to operate and does not have a large operational risk
However, the iron anode is easily passivated in the traditional electrolysis process, which hinders the preparation of ferric acid

Method used

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  • A method for preparing ferrate based on carbon sheet iron plating
  • A method for preparing ferrate based on carbon sheet iron plating
  • A method for preparing ferrate based on carbon sheet iron plating

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preparation example Construction

[0028] Step 1. Preparation of carbon sheet containing iron coating: select the electroplating solution formula: every liter of electroplating formula contains 50-600g ferrous chloride, 2-50g sodium chloride, 0-5g manganese chloride, 0-10g boric acid, The balance is water, preferably, each liter of electroplating formula contains 350g ferrous chloride, 10g sodium chloride, 1g manganese chloride, 5g boric acid, and the balance is water; the temperature is controlled at 25-40°C, and the pH is controlled at 1 -2 or so, the preparation of electroplating solution The present invention adopts the double anode electroplating method, selects rough carbon sheet with pits and cracks on the surface as the iron plating cathode, and the electroplating current density is 10A / dm 2 , electroplating apparatus such as figure 1 As shown, the electroplating device includes an electroplating tank 1, an electroplating solution 2 is contained in the electroplating tank 1, an anode carbon rod 3 is re...

Embodiment 1

[0032] A method for preparing ferrate based on carbon sheet iron plating, comprising the following steps:

[0033] Step 1, the preparation of the carbon sheet that contains iron coating: select electroplating solution formula: contain 350g ferrous chloride, 10g sodium chloride, 1g manganese chloride, 5g boric acid in every liter electroplating formula, surplus is water; Control temperature at 35°C, pH is controlled at about 1.5, and the electroplating solution is prepared. This invention adopts the double anode electroplating method, and selects a rough carbon sheet with pits and cracks on the surface as the iron plating cathode, and the electroplating current density is 10A / dm 2 , electroplating apparatus such as figure 1 As shown, the electroplating device includes an electroplating tank 1, an electroplating solution 2 is contained in the electroplating tank 1, an anode carbon rod 3 is respectively placed in the electroplating solution 2 and at both ends of the electroplati...

Embodiment 2

[0037] A method for preparing ferrate based on carbon sheet iron plating, comprising the following steps:

[0038] Step 1, the preparation of the carbon sheet that contains iron coating: select electroplating solution formula: contain 50g ferrous chloride, 50g sodium chloride, 0g manganese chloride, 10g boric acid in every liter of electroplating formula, surplus is water, control temperature at 25°C, pH control at 2, preparation of electroplating solution This invention adopts double anode electroplating method, selects rough carbon sheet with pits and cracks on the surface as iron plating cathode, and the electroplating current density is 10A / dm 2 , electroplating apparatus such as figure 1 As shown, the electroplating device includes an electroplating tank 1, an electroplating solution 2 is contained in the electroplating tank 1, an anode carbon rod 3 is respectively placed in the electroplating solution 2 and at both ends of the electroplating tank 1, and two anode rods 3...

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Abstract

The invention discloses a method for preparing ferrate based on carbon sheet iron plating, comprising the following steps: preparing an electroplating solution and an electroplating device, adopting a double anode electroplating method, and selecting a rough carbon sheet with pits and cracks on the surface as the plating The iron cathode, that is, the cathode carbon sheet, is electroplated to prepare a carbon electrode containing an iron coating; an electrolytic cell device is made, and the electroplated carbon electrode containing an iron coating is rinsed with distilled water and dried; soaked in NaOH; the obtained material As an anode material, it is placed in the anode chamber; as a cathode material, carbon rods are placed in the cathode chamber; adjust the voltage to control the cathode current density to 135A / m 3 , Electrolyzed in mixed alkali solution to prepare ferrate. The present invention utilizes the rough surface of the carbon sheet and combines the electroplating method to plate iron on the surface of the carbon sheet. The problem of passivation of iron surfaces when using cast iron or wire mesh as an anode.

Description

technical field [0001] The invention belongs to the field of chemistry and chemical engineering, and in particular relates to a method for preparing ferrate based on carbon sheet iron plating. Background technique [0002] Ferrate is an oxygen-containing salt of high-valent iron with positive hexavalent, and has certain application value in the fields of sewage treatment, sterilization and battery energy. At present, the methods for synthesizing ferrate mainly include high temperature melting oxidation, hypochlorite oxidation and electrolysis. Although the fusion method can be mass-produced, the equipment requirements are harsh and the operation is dangerous; the hypochlorite oxidation method is low in cost, but the operation procedure is complicated, the pollution is large, and the production is difficult to scale; the electrolysis method has low yield and high energy consumption. However, compared with the high-temperature melting oxidation method and the hypochlorite oxi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B1/00C25B11/04C25D3/20C25D5/54
CPCC25B1/00C25D3/20C25D5/54C25B11/051C25B11/057C25B11/075
Inventor 曾飞虎
Owner 福建省东吴环保科技有限公司
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