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2 152 256

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Application

99106289/12, 1999-03-29

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Start date

1999-03-29

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Actual filing date

1999-03-29

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Published

2000-07-10

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Inventor

Ivonin V.P.Romanova V.V.Skorokhodov V.I.Gorjaeva O.Ju.Romanov A.A.Radionov B.K.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD OF REMOVING SULFURIC ACID FROM ELECTROLYTE SOLUTIONS Russian patent published in 2000 - IPC

Abstract RU 2152256 C1

FIELD: sorption processes. SUBSTANCE: invention relates to sorption processes for removing sulfuric acid from high-concentration electrolyte solutions containing sulfuric acid and nonferrous metal salts. Process involves bringing electrolyte solutions into contact with aminoethanol anionite, removing remaining contact solutions from intergranular space of anionite, and regeneration of the latter with water, said anionite being sorbent containing residues of 2-aminomethylene(N'-bis-beta- hydroxymethyl)pyridine and 2-aminomethylene(N'-mono-beta- hydroxymethyl)pyridine. EFFECT: increased degree of purification. 2 cl, 1 tbl, 4 ex

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RU 2 152 256 C1

Authors

Ivonin V.P.

Romanova V.V.

Skorokhodov V.I.

Gorjaeva O.Ju.

Romanov A.A.

Radionov B.K.

Dates

2000-07-10—Published

1999-03-29—Filed

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