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Effect of liquid circulation in the draft-tube reactor on precipitation of calcium carbonate via carbonation

✍ Scribed by Donata Konopacka-Łyskawa; Zbigniew Cisiak; Bożenna Kawalec-Pietrenko

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
575 KB
Volume
190
Category
Article
ISSN
0032-5910

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✦ Synopsis

Precipitation of calcium carbonate was carried out in a draft-tube reactor by mechanical agitation of calcium hydroxide solution with carbon dioxide. The circulation of a reactive mixture was created by gas flow and a stirrer. It was observed that a higher circulation decreased the precipitation time and improved CO 2 consumption. A higher circulation velocity of liquid contributed to smaller calcium carbonate particles at the end of precipitation.

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