METHOD OF RECOVERING STRONTIUM-CONTAINING CONCENTRATE Russian patent published in 2005 - IPC

Abstract RU 2250197 C1

FIELD: inorganic compounds technology.

SUBSTANCE: invention relates to production of strontium compounds and can be used in manufacture of complex fertilizers. Apatite is decomposed by nitric acid, nitric acid extract is diluted with water, concentrated, and filtered. Consumption of water 0.03-0.12 t per 1 t apatite is maintained in apatite decomposition reactor.

EFFECT: reduced loss of strontium nitrate with clarified solution more by 20% during operation under optimum conditions.

3 cl, 3 ex

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RU 2 250 197 C1

Authors

Abramov O.B.

Bojkov S.V.

Afanasenko E.V.

Garaev R.M.

Gonchar Ju.M.

Zakharova O.M.

Mukhacheva T.E.

Sezemin V.A.

Koshcheev V.A.

Dates

2005-04-20Published

2003-11-20Filed