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2 096 329

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Application

96105757/25, 1996-03-26

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Actual filing date

1996-03-26

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Published

1997-11-20

(72)

Inventor

Gitis Ehduard Borisovich[Ua]Beljaeva Nina Vasil'Evna[Ua]Titov Vjacheslav Mikhajlovich[Ru]Voronin Anatolij Vasil'Evich[Ru]Gareev Al'Bert Tazetdinovich[Ru]Bajbulatov Salavat Iskhakovich[Ru]

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD OF BARIUM CARBONATE PRODUCING Russian patent published in 1997 - IPC

Abstract RU 2096329 C1

FIELD: chemical technology, inorganic chemistry. SUBSTANCE: method involves preparing barium-containing solution by treatment of barium sulfide melt an aqueous suspension with nitric acid diluted to mass part of HNO3 20-23% at 60-70 C followed by treatment of the obtained suspension with steam to 85-95 C, impurities removing, treatment of the refined solution with sodium carbonate, separation of barium carbonate, its washing and drying. Method can be used in chemical industry. EFFECT: improved quality, decreased chloride content, simplified procedure. 1 tbl

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RU 2 096 329 C1

Authors

Gitis Ehduard Borisovich[Ua]

Beljaeva Nina Vasil'Evna[Ua]

Titov Vjacheslav Mikhajlovich[Ru]

Voronin Anatolij Vasil'Evich[Ru]

Gareev Al'Bert Tazetdinovich[Ru]

Bajbulatov Salavat Iskhakovich[Ru]

Dates

1997-11-20—Published

1996-03-26—Filed

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