Method of manufacturing manganese tetrafluoride

A technology of manganese tetrafluoride and fluorinating agent, applied in the direction of manganese halide, etc., can solve the problems of difficult commercial production and low conversion rate of MnF4
CN101027255AInactive Publication Date: 2007-08-29SHOWA DENKO KK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHOWA DENKO KK
Publication Date
2007-08-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method of manufacturing manganese tetrafluoride comprises reacting a manganese compound and a fluorinating agent at a temperature of 250-350° C. and a pressure of 1.0-10.0 MPs to fluorinate the compound, while constantly or discontinuously crushing or grinding the starting compound and the manganese compound being reacted. According lo the method, since. fluorine is deeply penetrated into the interior of the manganese salt particles, the ratio of conversion to manganese tetrafluoride, MnF4 can he improved.
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Description

technical field

[0001] The present invention relates to inorganic chemistry and to methods for the preparation of manganese compounds, more particularly to methods for the preparation of their halogenated products, namely the preparation of manganese tetrafluoride MnF 4 Methods. Background technique

[0002] Manganese tetrafluoride is used in the chemical industry as a strong oxidizing agent and as a source for the preparation of pure fluorine gas. As for manganese tetrafluoride, for example, a method for producing fluorine gas is known [Russian Federation Patent 2,221,739, classification number C01B7 / 20, publication date April 1, 2004]. This method uses, for example, salts with high fluorine content (potassium hexafluoride KF 6 and manganese tetrafluoride MnF 4 ) and for example K 3 NiF 7 、K 2 NiF 6 and K 2 CuF 6 Other salts of and compounds like them as starting compounds.

[0003] It is also known to prepare MnF 4 method, which uses terbium tetrafluoride as a f...

Claims

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