coolant salt

Aimed at the leaking and tube blasting of melt salt cooler,analyzes various reasons for the corrosion,and presents relative countermeasures,obtaining good results.

针对熔盐冷却器发生泄漏及产生爆管的现象,分析可导致腐蚀的各种原因,并提出了相应的对策措施,取得了良好效果。

The methods of alkali salt freezing precipitation and urea entraping are used to concentrate and to purify polyunsaturated fatty acid of DHA and EPA.

研究了以碱金属盐冷冻沉淀法和尿素包埋法纯化鱼油多烯脂肪酸ＤＨＡ和ＥＰＡ的工艺条件，认为钾盐冷冻沉淀法具有操作简单，产品收率高的优点，而尿素包埋法则具有显著的富集效果，产品的ＤＨＡ和ＥＰＡ含量最高可达６３。