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2 045 476

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IPC

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Application

5059143/26, 1992-08-19

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Actual filing date

1992-08-19

(45)

Published

1995-10-10

(72)

Inventor

Alekhin A.M.Balandin O.N.Arkhipova V.M.Gojzman V.P.Kotova N.A.Gurskij A.A.Zavatskij V.I.Konoplitskij V.Ja.

(73)

Holder

Primorskoe Proizvodstvennoe Ob"Edinenie

METHOD OF BORIC ACID PRODUCING Russian patent published in 1995 - IPC

Abstract RU 2045476 C1

FIELD: chemical technology. SUBSTANCE: method involves sulfuric acid decomposition of boron-containing raw, leaching chamber product with reusable solutions, A2B3 extraction from debalanced solutions by their treatment with calcined waste of datolite ore concentration or calcined limestone up to pH 10-12, washing slime with mother liquids of calcium borate, acidification of production liquid after leaching, crystallization of boric acid, drying, package. EFFECT: increased yield of product, simplified technology, decreased exhaust to environment. 2 tbl

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RU 2 045 476 C1

Authors

Alekhin A.M.

Balandin O.N.

Arkhipova V.M.

Gojzman V.P.

Kotova N.A.

Gurskij A.A.

Zavatskij V.I.

Konoplitskij V.Ja.

Dates

1995-10-10—Published

1992-08-19—Filed

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