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Electric current control method and apparatus for use in gas generators

By measuring the fluctuation amplitude of the electrolysis voltage and adjusting the current input, the high-purity generation of fluorine gas and the improvement of electrolysis efficiency are achieved, which solves the problems of purity decrease and manual operation dependence caused by side reactions in the fluorine gas electrolysis device, and reduces maintenance costs and manpower requirements.

Inactive Publication Date: 2009-07-15
TOYO TANSO KK
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Problems solved by technology

[0029] However, in the method described in this Japanese Patent Document 1, until the gas can be generated in a stable state, the operator needs to monitor the site and control the electrolysis conditions according to the change of the electrolysis state.

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Embodiment Construction

[0054] Hereinafter, an embodiment of the current control method of the gas generator according to the present invention will be described based on the drawings. figure 1 It is a figure which shows the outline structure of the gas generator concerning this invention. Such as figure 1 As shown, the gas generator of the present invention has a gas generator 1 including a constant current source 3 and a current control device 2 connected to the constant current source 3 to control the current applied to the electrode 4 as main components.

[0055]The gas generating part 1 is provided with a constant current source 3 and an electrolytic tank 6, wherein the constant current source 3 is connected to an electrode 4 composed of an anode 4a and a negative electrode 4b formed of carbon electrodes, and the electrolytic tank 6 contains a mixed molten salt containing hydrogen fluoride, etc. Constitute the electrolytic bath5. Electrolyzer 6 is made of metals such as Ni, Monel alloy, pure...

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Abstract

The present invention provides a current control method and a current control device of a gas generating device capable of maintaining an optimal electrolysis state and stably operating, and generating fluorine or fluoride gas without manual labor. The present invention is a kind of electric current control method that makes the electrolytic bath (5) that is made of mixed molten salt containing hydrogen fluoride, use carbon electrode as anode (4a) to electrolyze and generate fluorine or the gas generator of fluoride gas, measure in gas The range of voltage variation between the cathode (4b) and the anode (4a) after a certain current is applied to the generating device, and the current is applied while changing the amount of input current according to the range of voltage fluctuation.

Description

technical field [0001] The present invention relates to a current control method and a current control device of a gas generator generating fluorine or fluoride gas. Background technique [0002] Fluorine can be obtained by electrolysis of a molten salt containing a fluoride such as HF as represented by the conventional formula (1). [0003] f - →1 / 2F 2 +e - Formula (1) (fluorine reacts) [0004] At this time, hydrogen is generated from the cathode as shown in the formula (2). [0005] (2) Hydrogen reacts [0006] 2H + +2e - →H 2 Formula (2) (hydrogen generation reaction) [0007] However, in the reactions of the formulas (1) and (2) shown above, the fluorine generation reaction at the anode is accompanied by extremely complicated side reactions as shown in the following formulas (3) to (10). [0008] xC+F - →(C x + f - )+e - Formula (3) (fluorine-graphite intercalation compound generation reaction) [0009] The reaction of formula (...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B1/24C25B15/02C01B7/20C01B9/08
CPCC25B1/245C25B15/02C25B15/025C25B15/08
Owner TOYO TANSO KK
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