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2 550 404

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C2

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IPC

C01G1/06(2006-01-01)

C01G25/04(2006-01-01)

C22B1/08(2006-01-01)

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Application

2013141059/05, 2013-09-06

(24)

Start date

2013-09-06

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Actual filing date

2013-09-06

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Published

2015-05-10

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Inventor

Arzhatkina Oksana AlekseevnaKovaleva Irina Vladimirovna

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Nauchno-Issledovatel'Skij Institut Khimicheskoj Tekhnologii"

METHOD OF CHLORATION OF RARE METAL FEED STOCK IN MOLTEN SALTS Russian patent published in 2015 - IPC C01G1/06 C01G25/04 C22B1/08 

Abstract RU 2550404 C2

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy of rare metals, namely to methods of chloration of rare metal feed stock, and can be used during production of zirconium and hafnium chlorides for nuclear power. Method of chloration of rare metal feed stock includes mixing of the ground feed stock with carbon containing reducing agent, charge treatment by 0.5-2% water solution of the dissoluble potassium and natrium silicates, or their mixture, it granulation and drying to residual moisture content at least 0.5%, high temperature chloration of the charge in melt containing alkali metal chloride or mixture of alkali and alkali-earth metal chlorides. At that melt containing additionally at least 40 wt % of potassium chlorinezirconate (K2ZrCl6) or potassium chlorineluminate (KAlCl4) of melt weight.

EFFECT: increased rate of chlorination of rare metal feed stock and reduced temperature of chlorination.

9 ex

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RU 2 550 404 C2

Authors

Arzhatkina Oksana Alekseevna

Kovaleva Irina Vladimirovna

Dates

2015-05-10—Published

2013-09-06—Filed

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