METHOD FOR PRODUCING HIGH PURITY STRONTIUM CARBONATE Russian patent published in 2017 - IPC C01F11/18 

Abstract RU 2610775 C2

FIELD: chemistry.

SUBSTANCE: processing of the starting material is performed with the acid followed by calcination. Strontium hydroxide octahydrate is used as a strontium-containing compound. Deposition of strontium formate dihydrate is carried out with formic acid taken from 10 % mass excess at heating. Dedicated strontium formate dihydrate is subjected to, at least, one recrystallization followed by calcination at 600°C under the nitrogen atmosphere for an hour to prepair the desired product - strontium carbonate.

EFFECT: simplification of the process for obtaining high-purity strontium carbonate with a low content of barium, and the exclusion of using hazardous reagents.

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RU 2 610 775 C2

Authors

Vasilchenko Danila Borisovich

Emelyanov Vyacheslav Vladimirovich

Novoselov Igor Ivanovich

Fedotov Valerij Alekseevich

Dates

2017-02-15Published

2015-07-16Filed