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2 433 955

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IPC

C01G35/00(2006-01-01)

C01G21/00(2006-01-01)

C01F5/00(2006-01-01)

(21) (22)

Application

2010107220/05, 2010-02-27

(24)

Start date

2010-02-27

(22)

Actual filing date

2010-02-27

(45)

Published

2011-11-20

(72)

Inventor

Nikishina Elena Evgen'EvnaLebedeva Elena NikolaevnaJachmeneva Marina SergeevnaDrobot Dmitrij Vasil'Evich

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennaja Akademija Tonkoj Khimicheskoj Tekhnologii Imeni M.V. Lomonosova"

METHOD OF PRODUCING LEAD MAGNOTANTALATE POWDER WITH PEROVSKITE STRUCTURE Russian patent published in 2011 - IPC C01G35/00 C01G21/00 C01F5/00

Abstract RU 2433955 C1

FIELD: chemistry.

SUBSTANCE: invention relates to production of oxide powder with composition Pb(Mg_1/3Ta_2/3O₃) having a perovskite structure and can be used in producing materials for piezoelectric engineering. The method involves mixing a tantalum compound with aqueous solutions of lead and magnesium salts in stoichiometric ratio which yields a composition of lead magnotantalate with a perovskite structure - Pb(Mg_1/3Ta_2/3O₃), and then thermal treatment of the obtained suspension. The tantalum compound used is tantalum hydroxide and the solutions of magnesium and lead salts are solutions of magnesium and lead acetates which are added successively, the product being thermally treated at 800-850°C.

EFFECT: low synthesis temperature, high output and purity of the end product.

1 tbl, 1 ex

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RU 2 433 955 C1

Authors

Nikishina Elena Evgen'Evna

Lebedeva Elena Nikolaevna

Jachmeneva Marina Sergeevna

Drobot Dmitrij Vasil'Evich

Dates

2011-11-20—Published

2010-02-27—Filed