Influence of sulfate ions on the interaction between fatty acids and calcite surface

Macroscopic and nanoscale study of wettability alteration of oil-wet calcite surface in presence of magnesium and sulfate ions

“…These results are in line with our previous works [9][10][11][12] where magnesium ions change the wettability of the modified calcite pieces toward water-wet more than sulfate. This was explained based on adsorption/ionic exchange with calcium ions hence, less available active site of Ca 2+ .…”

“…It also investigates possible correlation between macroscopic and microscopic results and to explain some of the obtained results in macroscopic techniques [4,[9][10][11][12].…”

“…Hamouda and co-workers in a series of works [4,[9][10][11][12] have shown that magnesium and sulfate ions present in seawater have reduced the oil-wetness of chalk. They used different techniques such as interfacial tension, partitioning, adsorption and contact angle measurements.…”

Effect of Ca2+, Mg2+ and SO42− ions on the zeta potential of calcite and dolomite particles aged with stearic acid

“…SO 4 2− ions are reported in literature as strong PDIs towards carbonate surfaces. They can partially displace adsorbed carboxylic materials and help in maintaining a state of water wetness on the carbonate surfaces [18,34,45].…”

Fuzzy Statistical Process Control of a Calcite Grinding Plant Using Total Color Difference Parameter (ΔE)

“…For calcite, two main steps are usually visible in the thermal curves in the temperature range of 25-600°C. The third part starts at approximately 580°C and corresponds to the decomposition of calcite [53]. DTA and TG results on micronized calcite samples are presented in Figure 9.…”