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(19)

(11)

2 535 834

(13)

(51)

IPC

C01B25/45(2006-01-01)

C01B25/28(2006-01-01)

C01B25/37(2006-01-01)

C01G53/00(2006-01-01)

(21) (22)

Application

2013113455/05, 2013-03-26

(24)

Start date

2013-03-26

(22)

Actual filing date

2013-03-26

(45)

Published

2014-12-20

(72)

Inventor

Afonin Evgenij Gennadievich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Nauchno-Issledovatel'Skij Institut Telemekhanicheskikh Ustrojstv"

METHOD OF OBTAINING NICKEL (II)-AMMONIUM PHOSPHATES Russian patent published in 2014 - IPC C01B25/45 C01B25/28 C01B25/37 C01G53/00

Abstract RU 2535834 C9

FIELD: chemistry.

SUBSTANCE: invention relates to industrial ecology and chemical technology of inorganic substances, in particular to methods of recycling toxic wastes of production of galvanic (electrochemical) and chemical nickel coatings and to method of obtaining nickel phosphates. Method of obtaining nickel (II)-ammonium phosphates includes preparation of reaction water solution, containing nickel (II), phosphate and ammonium, formation of nickel (II)-ammonium phosphate sediment and its separation from solution. As source of nickel (II) used is liquid wastes of production of nickel coatings - spent solution of galvanic nickel plating and/or spent solution of chemical nickel plating.

EFFECT: method makes it possible to obtain chemical products nickel (II)-ammonium phosphates NH₄NiPO₄·6H₂O and NH₄NiPO₄·H₂O, used in various fields of industry with low cost, extract more than 99,9% of nickel (II) from spent solutions of nickel plating.

14 cl, 12 ex

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RU 2 535 834 C9

Authors

Afonin Evgenij Gennadievich

Dates

2014-12-20—Published

2013-03-26—Filed