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2 430 981

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IPC

C22B23/00(2006-01-01)

C22B3/20(2006-01-01)

C22B3/24(2006-01-01)

(21) (22)

Application

2010111866/02, 2010-03-30

(24)

Start date

2010-03-30

(22)

Actual filing date

2010-03-30

(45)

Published

2011-10-10

(72)

Inventor

Gurov Vladimir Alekseevich

(73)

Holder

Gurov Vladimir AlekseevichObshchestvo S Ogranichennoj Otvetstvennost'Ju Kompanija

PROCEDURE FOR EXTRACTION OF NICKEL FROM SOLUTIONS AND FOR PURIFICATION FROM IMPURITIES Russian patent published in 2011 - IPC C22B23/00 C22B3/20 C22B3/24

Abstract RU 2430981 C1

FIELD: metallurgy.

SUBSTANCE: procedure for extraction of nickel from solutions and purification from impurities: Cr³⁺, Fe³⁺, Al³⁺, Cu²⁺, Zn²⁺, Co²⁺, Fe²⁺, Mn²⁺, Ca²⁺, Mg²⁺ consists in bringing pH of solutions to values 4.0-6.5, in sorption of nickel at pH=4.0-6.5 from solutions or pulps on sub-acid cationites, in desorption of nickel from saturated cationites with solution of sulphuric or hydrochloric acid with production of solution of nickel strippant. Before desorption saturated cationite is treated with solution of nickel purified from impurities, also with portion of solution of strippant with concentration of nickel higher, than its concentration in source solution or pulp coming to sorption at a value of pH less, than pH of solution or pulp in the process of sorption. Ratio of C_NI:ΣC_impurity in solution of strippant changes from 7:1 to 500:1.

EFFECT: more deep purification of solution of nickel strippant from impurities.

4 tbl

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RU 2 430 981 C1

Authors

Gurov Vladimir Alekseevich

Dates

2011-10-10—Published

2010-03-30—Filed