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2 490 209

(13)

(51)

IPC

C01G9/00(2006-01-01)

B82B1/00(2006-01-01)

B82Y99/00(2011-01-01)

(21) (22)

Application

2012109708/05, 2012-03-15

(24)

Start date

2012-03-15

(22)

Actual filing date

2012-03-15

(45)

Published

2013-08-20

(72)

Inventor

Dobrydnev Sergej VladimirovichSolomatina Julija AleksandrovnaMolodtsova Marija Jur'EvnaDorogov Aleksandr Vladimirovich

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju

METHOD OF OBTAINING BASIC ZINC CARBONATES Russian patent published in 2013 - IPC C01G9/00 B82B1/00 B82Y99/00

Abstract RU 2490209 C1

FIELD: chemistry.

SUBSTANCE: invention can be used in chemical industry. Method of obtaining basic zinc carbonates includes chemical conversion of coarse-dispersed zinc oxide in water solution of carbon dioxide and ammonia, further formation of target product, its filtration, drying, condensation and return of gaseous products to the stage of chemical conversion. Chemical conversion of zinc oxide into basic zinc carbonate is performed in ammonia-carbonate water solution in heterogenic conditions with molar ratio carbon dioxide:ammonia, equal 1:(5-9), temperature 15-50 °C and atmospheric pressure.

EFFECT: invention makes it possible to obtain amorphous sediments of pentazinc hexahydroxodicarbonate Zn₅(CO₃)₂(OH)₆of stoichiometriccomposition with particle size, which does not exceed 50 nm, to simplify the process, reduce energy consumption and ecological load on the environment.

1 dwg, 3 tbl, 5 ex

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RU 2 490 209 C1

Authors

Dobrydnev Sergej Vladimirovich

Solomatina Julija Aleksandrovna

Molodtsova Marija Jur'Evna

Dorogov Aleksandr Vladimirovich

Dates

2013-08-20—Published

2012-03-15—Filed