Natural dolomite was sourced from Hebei, China, with a purity of 98.45%. The dolomite has a nearly ideal stoichiometric formula of CaMg(CO3)2. The crushed dolomite particles were wet-ground in alcohol for 5 h in a planetary ball mill. The salt-bearing dolomites were prepared by adding 1.0 wt% of salts to dolomite and the powders were softly ground in a pestle to form homogenous mixtures. The used salts included chlorides (NaCl, LiCl, MgCl2, CaCl2, AlCl3·6H2O, and KCl), sulphates (Na2SO4, K2SO4, and Al2(SO4)3·18H2O), nitrates (KNO3, LiNO3 and Mg(NO3)2·2H2O), and carbonates (Na2CO3, Li2CO3, K2CO3, and Mg2(OH)2CO3). The salts were of analytical purity and used without further treatment.
Protocol detail
Dolomite Modification with Inorganic Salts
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Corresponding Organization : Central South University
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Variable analysis
independent variables
- Salt type (chlorides, sulphates, nitrates, and carbonates)
- Salt concentration (1.0 wt%)
- Not explicitly mentioned
- Dolomite source (Hebei, China)
- Dolomite purity (98.45%)
- Dolomite stoichiometric formula (CaMg(CO3)2)
- Dolomite grinding method (wet-ground in alcohol for 5 h in a planetary ball mill)
- Salt purity (analytical purity)
- Positive control: pure dolomite without any added salts
- Negative control: not mentioned
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