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Application

97104451/25, 1997-03-25

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Actual filing date

1997-03-25

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Published

1998-12-20

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Inventor

Safrygin Ju.S.Osipova G.V.Buksha Ju.V.Timofeev V.I.Cherepanova T.I.Poliksha A.M.Papulov L.M.Konoplev E.V.D'Jakov S.P.Konovalov V.I.

(73)

Holder

Aktsionernoe Obshchestvo

METHOD OF DEHYDRATING SYNTHETIC CARNALLITE Russian patent published in 1998 - IPC

Abstract RU 2123475 C1

FIELD: chemical engineering. SUBSTANCE: invention relates to technique of dehydration of synthetic carnallite through multistep drying of product in fluidized-bed apparatus at temperatures within 110 to 250 C range to yield product with moisture content up to 5% and MgO content below 3%. Invention is distinguished by that dehydration is carried out in two separate fluidized-bed apparatuses, in the first one product being dehydrated at 140-160 C and gas flow speed within the bed up to 3 m/s until MgCl2 content not higher than 42%, whereas, in the second apparatus, temperature being maintained at 200-240 C level and gas flow speed being up to 2.5 m/s. EFFECT: minimized magnesium oxide content in product. 2 tbl

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RU 2 123 475 C1

Authors

Safrygin Ju.S.

Osipova G.V.

Buksha Ju.V.

Timofeev V.I.

Cherepanova T.I.

Poliksha A.M.

Papulov L.M.

Konoplev E.V.

D'Jakov S.P.

Konovalov V.I.

Dates

1998-12-20—Published

1997-03-25—Filed

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