FIELD: inorganic compounds technology.
SUBSTANCE: method comprises two-step separation of hydrate suspension in centrifugal field of hydrocyclones to give, as bottom product, "sand-type" hydroxide with content of -4 mcm fractions at most 10%. First-step hydrocyclone discharge is passed to second classification step and second-step classification is effected in hydrocyclones with diameter equal to 0.4-0.7 that of the first-step hydrocyclone. Hydrate suspension is preliminarily diluted with clarified solution or water to content of solids 250 g/l.
EFFECT: increased yield of production part of hydrate and reduced number of hydrocyclones thanks to enabled mounting of more productive apparatuses in the first-step classification.
2 cl, 1 dwg, 1 tbl
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