作为一种化学原料，它也被用于制造杀虫剂、提纯水、净化污水和制氨。
As a chemical it's also used in insecticides, water purification, sewage treatment and the production of ammonia.
卵磷脂是一种天然表面活性剂，在许多方面有重要的应用价值。本文详细介绍了大豆卵磷脂的粗提、提纯、测定和改性方面的研究成果。
Lecithin is a natural surfactant. It has important application value aspects. In this paper, the purification, determination and modification of soybean lecithin in research are discussed in detail.
介绍了降凝剂中间体丙烯酸高碳醇酯的合成和产品分离提纯方法。
Synthesis and purification of long chain alkyl acrylate as intermediate of pour point depressant were introduced.
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