sulfur acid

基本解釋

The rate of iron recovery of pyrite cinders is up to 90% by maturation treatment after pyrite cinders mixing with sulfur acid.
將硫鐵礦燒渣與硫酸混合后，經過熟化處理可使燒渣中鐵的回收率達到90%以上。
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In this dissertation, the preparation of aluminium anodic oxide films is studied mainly through method of constant voltage oxidation in sulfur acid.
本文主要用恒壓氧化法在硫酸中制備鋁陽極氧化膜；
The wet process consisted of roasting, sulfur acid pretreatment and chlorination leaching of gold is examined. The results show that gold leaching rate is 97.95% and silver leaching rate is 79.86%.
本研究采用焙燒-硫酸預處理-氯化濕法工藝從其中回收金，金浸出率為97.95%，銀浸出率為79.86%，效果令人滿意。

Ferretti, vice president at the Chicago Climate Exchange, extolled emissions trading, noting that the practice had helped bring sulfur dioxide and acid rain under control much less expensively than traditional command-and-control regulation.
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However, it is also applicable in locations where smelter acid is not available by the purchase of sulfuric acid or the manufacture of sulfuric acid from sulfur or pyrite.
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Back then, the concern was sulfur dioxide, the culprit behind acid rain.
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