是用硫酸处理油品，可除去某些含硫化合物、含氮化合物和胶质。
Use sulphur acid treatment oil, but divided by some includes the sulphur compound, includes the nitrogen compound and colloid.
研究了以煤系高岭土为原料，经硫酸处理后采用水热转化法合成洗涤剂用4A沸石的方法。
The synthesis of detergent-used 4A zeolite from coal-series Kaolin which was treated with sulfuric acid firstly was studied.
介绍了用热的浓硫酸处理废硬质合金，回收金属钴和碳化钨的方法。
This article reports on a method of retrieving cobalt metal and tungsten carbide from hard alloy scrap by the sulphate method.
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