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(19)

(11)

2 500 629

(13)

(51)

IPC

C02F103/16(2006-01-01)

C02F103/40(2006-01-01)

C02F1/72(2006-01-01)

(21) (22)

Application

2011152160/05, 2011-12-20

(24)

Start date

2011-12-20

(22)

Actual filing date

2011-12-20

(45)

Published

2013-12-10

(72)

Inventor

Afonin Evgenij Gennadievich

(73)

Holder

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

METHOD OF DESTRUCTING ANION OF 1-HYDROXYETHANE-1,1-DIPHOSPHORIC ACID IN PRODUCTION WASTES Russian patent published in 2013 - IPC C02F103/16 C02F103/40 C02F1/72

Abstract RU 2500629 C2

FIELD: chemistry.

SUBSTANCE: invention relates to methods of deactivation of toxic wastes of galvanic and radio-electronic production and can be applied for deactivation of waste solutions of galvanic and chemical metal coatings, which contain anion of 1-hydroxyethane-1,1-diphosphonic acid, as well as for neutralisation of waste solutions of etching of printed circuit boards, which contain ammonium perpxodisulphate. Method consists in mutual neutralisation of two liquid wastes of production as a result of oxidation of anion of 1-hydroxyethane-1,1-diphosphonic acid by peroxodisulphate to nontoxic chemical substances.

EFFECT: method makes it possible to convert more than 99% of anion of 1-hydroxyethan-1,1-diphosphonic acid into orthophosphate, reduce material costs for neutralisation of toxic wastes of production of galvanic coatings and printed circuit boards and extend arsenal of methods for utilisation of waste solutions of etching of printed circuit boards, which contain ammonium perpxodisulphate.

11 cl, 4 dwg, 4 ex

Similar patents RU2500629C2

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RU 2 500 629 C2

Authors

Afonin Evgenij Gennadievich

Dates

2013-12-10—Published

2011-12-20—Filed