Electrolysis device for preparing high-purity metallic sodium

An electrolysis device, metal sodium technology, applied in the direction of electrolysis components, electrolysis process, cells, etc., can solve problems such as difficult to realize controllable feeding and continuous operation, and achieve continuous mass production, high safety factor, and enhanced safety Effect

Pending Publication Date: 2018-06-01
中国东方电气集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On February 27, 2013, the State Intellectual Property Office disclosed an invention with the announcement number CN202755066U and the name "a melting electrolysis device for purifying sodium metal". Realize controllable feeding and continuous operation, not suitable as a mass production device for high-purity metallic sodium

Method used

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  • Electrolysis device for preparing high-purity metallic sodium

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Embodiment 1

[0030] Such as figure 1 As shown, an electrolysis device for preparing high-purity metallic sodium includes a protective gas source 1 (the protective gas source is inert gas or nitrogen), a crude sodium tank 2 and an electrolytic tank 3. The crude sodium tank 2 is crude sodium The upper part of the container is provided with a valve as an inlet for crude sodium, and the crude sodium is raw sodium with a purity lower than the target product. Both the crude sodium tank 2 and the electrolytic tank 3 are equipped with a heating device 5, the heating device 5 is used to heat the liquid sodium inside to prevent it from solidifying; the protective gas source 1 is connected to the crude sodium tank 2 and the electrolytic tank through a pipeline. 3Connect. Unless otherwise specified, all the pipes through which the sodium metal flows are heated to prevent the sodium metal from solidifying in the pipes. The electrolysis device also includes a vacuum pump system 6. During electrolysis, ...

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Abstract

The invention discloses an electrolysis device for preparing high-purity metallic sodium. The electrolysis device for preparing the high-purity metallic sodium comprises a shielding gas source, a crude sodium tank, an electrolytic bath and a filtering tank. The filtering tank is arranged between the crude sodium tank and the electrolytic bath. The bottom of the crude sodium tank is connected withthe filtering tank through a pipeline. The pipeline enabling the crude sodium tank to be connected with the filtering tank is provided with a first stop valve. The bottom of the filtering tank is connected with the electrolytic bath through a pipeline. A second stop valve is arranged on the pipeline enabling the filtering tank and the electrolytic bath to be connected. The filtering tank is provided with a sodium solution flow guide pipe. One end of the sodium solution flow guide pipe communicates with the filtering tank. The other end of the sodium solution flow guide pipe communicates with the crude sodium tank. According to the electrolysis device for preparing the high-purity metallic sodium, the amount of crude sodium added to the electrolytic bath every time is controlled through a transition container and valves, the situation that a large amount of crude sodium swarms into the electrolytic bath and cause accidents can be avoided, and the safety coefficient of the electrolysis device is high.

Description

Technical field [0001] The invention relates to an electrolysis device, more specifically to an electrolysis device for preparing high-purity metallic sodium, belonging to the technical field of solid electrolyte electrolysis devices for preparing metallic sodium. Background technique [0002] Metal sodium is an indispensable material in the construction of the national economy, and it plays an important role in many fields such as industry, energy and national defense. In metallurgy, sodium metal is used to smelt certain precious metals such as titanium, tantalum and niobium due to its strong reducibility; in the field of light industry, sodium metal reacts with ammonia to form sodium amide as an intermediate for the preparation of indigo powder in the dye industry; In the field of medicine, sodium metal is used to produce sodium borohydride as pharmaceutical intermediates such as trimethyl orthoformate and triethyl formate; in the petrochemical field, the alloy of sodium metal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/02C25C7/00C25C7/06
CPCC25C3/02C25C7/005C25C7/06
Inventor 唐光盛朱睿阴宛珊
Owner 中国东方电气集团有限公司
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