Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 7104-7111 |
| Number of pages | 8 |
| Journal | Industrial & Engineering Chemistry Research |
| Volume | 47 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 2008 |
| MoE publication type | A1 Journal article-refereed |
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Steel converter slag as a raw material for precipitation of pure calcium carbonate. / Eloneva, Sanni (Corresponding Author); Teir, Sebastian; Salminen, Justin; Fogelholm, Carl-Johan; Zevenhoven, Ron.
In: Industrial & Engineering Chemistry Research, Vol. 47, No. 18, 2008, p. 7104-7111.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Steel converter slag as a raw material for precipitation of pure calcium carbonate
AU - Eloneva, Sanni
AU - Teir, Sebastian
AU - Salminen, Justin
AU - Fogelholm, Carl-Johan
AU - Zevenhoven, Ron
PY - 2008
Y1 - 2008
N2 - In this work we study the possibility of utilizing steel converter slag, a byproduct of steel manufacturing, for production of pure calcium carbonate. The dissolution of calcium from steel converter slag by using acetic acid as a solvent and the precipitation of pure calcium carbonate from the resulting solution were experimentally investigated. It was found that, while strong solutions of acetic acid dissolve most of the calcium from the slag, weak acetic acid solutions dissolve calcium selectively. Precipitation of any substantial amount of calcium carbonate was found to require the addition of sodium hydroxide. Calcium conversion from the solution into the precipitate was as high as 86%, and the purity of the precipitate was over 99%. The calcium carbonate particles produced at low temperatures were found to have rhombohedral particle shapes, a very high brightness (98.7%), and a small particle size (mean value of 0.6 μm).
AB - In this work we study the possibility of utilizing steel converter slag, a byproduct of steel manufacturing, for production of pure calcium carbonate. The dissolution of calcium from steel converter slag by using acetic acid as a solvent and the precipitation of pure calcium carbonate from the resulting solution were experimentally investigated. It was found that, while strong solutions of acetic acid dissolve most of the calcium from the slag, weak acetic acid solutions dissolve calcium selectively. Precipitation of any substantial amount of calcium carbonate was found to require the addition of sodium hydroxide. Calcium conversion from the solution into the precipitate was as high as 86%, and the purity of the precipitate was over 99%. The calcium carbonate particles produced at low temperatures were found to have rhombohedral particle shapes, a very high brightness (98.7%), and a small particle size (mean value of 0.6 μm).
U2 - 10.1021/ie8004034
DO - 10.1021/ie8004034
M3 - Article
VL - 47
SP - 7104
EP - 7111
JO - Industrial & Engineering Chemistry Research
JF - Industrial & Engineering Chemistry Research
SN - 0888-5885
IS - 18
ER -