H2 generation in wet grinding of granite and single ...
· For experiments using pure water, wet grinding was performed 4 times for different durations (20, 40, 60 and 100 min) for each sample. Grinding was performed for 60 min for all experiments using pHcontrolled media. In pHcontrolled experiments, the suspension obtained after grinding was stirred and poured into polypropylene vessels for measurement of pH (ROSS pH .