研究了拜尔法生产氢氧化铝过程中，用溶剂浮选-气相色谱法测定结晶助剂有效成分硬脂酸钠的方法。
A solvent flotation-gas chromatography for the determination of sodium stearate in sodium aluminate solution in aluminium hydroxide production by the bayer process was studied.
研究采用蜡类、溶剂、各种助剂和抛射剂为原料，结合气雾剂包装新技术制备喷雾鞋油。
In this study, the aerosol spray shoe polish was prepared by the emulsifying method of wax, solvent, various additives and propellant.
采用乳化结晶法，研究了粗蒽精制过程中溶剂、温度、助剂及分离时间的作用。
The effects of solvent, temperature, additive and separation time on the refinement process of crude anthracene by using emulsion-crystallization were reported.
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