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(19)

(11)

2 287 595

(13)

(51)

IPC

C22B7/00(2006-01-01)

C22B15/00(2006-01-01)

C07C63/04(2006-01-01)

C07C51/41(2006-01-01)

(21) (22)

Application

2005108265/02, 2005-03-23

(24)

Start date

2005-03-23

(22)

Actual filing date

2005-03-23

(45)

Published

2006-11-20

(72)

Inventor

Afonin Evgenij Gennadievich

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Nauchno-Issledovatel'Skij Institut Telemekhanicheskikh Ustrojstv"

METHOD OF EXTRACTION OF COPPER (II) FROM WASTE PRINTED CIRCUIT BOARD PICKLING SOLUTIONS Russian patent published in 2006 - IPC C22B7/00 C22B15/00 C07C63/04 C07C51/41

Abstract RU 2287595 C1

FIELD: reagent methods of cleaning waste printed circuit board pickling solutions from copper (II); chemical technology of organic agents.

SUBSTANCE: cleaning is performed by adding to waste solution reagent containing monocarbonic acid of aromatic series or its salt, or anhydride at subsequent forming of sediment of salt of copper (II) with anion of monocarbonic acid of aromatic series.

EFFECT: low cost of method; high purity.

19 cl, 1 tbl,, 7 ex

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RU 2 287 595 C1

Authors

Afonin Evgenij Gennadievich

Dates

2006-11-20—Published

2005-03-23—Filed