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2 082 826

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IPC

(21) (22)

Application

94037979/02, 1994-10-10

(22)

Actual filing date

1994-10-10

(45)

Published

1997-06-27

(72)

Inventor

Penskij A.V.El'Tsov B.I.Teterin V.V.Bondarev Eh.I.Trapeznikov Ju.F.Djatlov V.V.

(73)

Holder

Aktsionernoe Obshchestvo Nauchno-Issledovatel'Skij I Proektnyj Institut Titana I Magnija"Aktsionernoe ObshchestvoAktsionernoe Obshchestvo Titanomagnievyj Kombinat

METHOD OF MAGNESIUM PRODUCTION Russian patent published in 1997 - IPC

Abstract RU 2082826 C1

FIELD: chemical technology, inorganic chemistry. SUBSTANCE: invention relates to magnesium chloride production using oxide magnesium-containing raw and abgases, dehydration and electrolysis. Abgases containing hydrogen chloride were treated with circulating brucite suspension (particle size is less 1 mm, ratio solid : liquid = (1:350)-(1:550)) at 50-180 C, pH = 2-9 up to magnesium chloride concentration in suspension 18-27 wt.-%. Then suspension is decanted, the cleared part is mixed with salts containing magnesium and potassium chloride up to preparing the mixture containing 30-65 wt.-% H₂O and weight ratio K : Mg = (1.52-1.84). The prepared mixture is added to the enriched carnallite at ratio 10-50% and the obtained raw is dehydrated. EFFECT: improved method of magnesium production. 8 cl

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RU 2 082 826 C1

Authors

Penskij A.V.

El'Tsov B.I.

Teterin V.V.

Bondarev Eh.I.

Trapeznikov Ju.F.

Djatlov V.V.

Dates

1997-06-27—Published

1994-10-10—Filed