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(19)

(11)

2 589 483

(13)

(51)

IPC

B09B3/00(2006-01-01)

C01B31/20(2006-01-01)

C01F11/28(2006-01-01)

C01D7/18(2006-01-01)

(21) (22)

Application

2015114698/05, 2015-04-20

(24)

Start date

2015-04-20

(22)

Actual filing date

2015-04-20

(45)

Published

2016-07-10

(72)

Inventor

Zagidullin Rais NurievichZagidullina Gulnaz RaisovnaMukhametov Askat Akhiyarovich

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Professionalnogo Obrazovaniya Gosudarstvennyj Universitet"

METHOD OF PROCESSING DISTILLED LIQUID FROM SODA PRODUCTION BY AMMONIA Russian patent published in 2016 - IPC B09B3/00 C01B31/20 C01F11/28 C01D7/18

Abstract RU 2589483 C1

FIELD: chemistry.

SUBSTANCE: invention can be used in chemical industry. Method includes treating still waste liquid from soda production, obtained after processing filter liquid calcium hydroxide. For this purpose, said still waste liquid containing solid waste-sludge is treated with hydrochloric acid or hydrogen chloride at temperature 20-100 °C. Carbon dioxide is recovered and returned to process of producing soda.

EFFECT: invention enables to obtain soda without solid wastes, as well as additional amount of carbon dioxide, reducing volume and reducing alkalinity of distilled liquid discharged in sludge filler.

3 cl, 4 ex

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RU 2 589 483 C1

Authors

Zagidullin Rais Nurievich

Zagidullina Gulnaz Raisovna

Mukhametov Askat Akhiyarovich

Dates

2016-07-10—Published

2015-04-20—Filed