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2 639 244

(13)

(51)

IPC

B22F9/04(2006-01-01)

B22F9/16(2006-01-01)

C01G25/00(2006-01-01)

(21) (22)

Application

2016146397, 2016-11-25

(24)

Start date

2016-11-25

(22)

Actual filing date

2016-11-25

(45)

Published

2017-12-20

(72)

Inventor

Dedova Elena SergeevnaGubanov Aleksandr IridievichBuyakova Svetlana PetrovnaKulkov Sergej NikolaevichPetrushina Mariya Yurevna

(73)

Holder

Federalnoe Gosudarstvennoe Avtonomnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Issledovatelskij Tomskij Gosudarstvennyj Universitet"

METHOD OF PRODUCING ZIRCONIUM TUNGSTATE POWDER Russian patent published in 2017 - IPC B22F9/04 B22F9/16 C01G25/00

Abstract RU 2639244 C1

FIELD: chemistry.

SUBSTANCE: invention relates to the production of zirconium tungstate powder (ZrW₂O₈), which can be used to produce shut-off elements of the oil and gas complex. The method comprises mixing zirconium powders (ZrO₂) and tungsten oxide (WO₃) in the ration 1:2 by mechanical activation with an acceleration of grinding bodies of 30-60 g with the addition of a surfactant in the form of an aqueous solution of sodium chloride. After activation, the powder mixture is placed in a quartz tube and heated at 1200±25°C followed by quenching to room temperature.

EFFECT: producing high-purity zirconium tungstate having a particle size of less than 2 mcm.

5 cl, 5 ex

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RU 2 639 244 C1

Authors

Dedova Elena Sergeevna

Gubanov Aleksandr Iridievich

Buyakova Svetlana Petrovna

Kulkov Sergej Nikolaevich

Petrushina Mariya Yurevna

Dates

2017-12-20—Published

2016-11-25—Filed