absorptive

Energy-saving ethanol dehydration techniques to produce dehydrated alcohol mainly included four measures as azeotropy distillation, extraction distillation, absorptive process and membrane separation.

摘要节能型乙醇脱水制备无水乙醇方法主要有4种：共沸精馏法、萃取精馏法、附法和膜分法。

By 52%-54% denisty indicator of lithium bromide, it is used to be absorptive refrigerant, hypnagogue and mitigative of medicine, and also to be electrolyte in ion-battery.

52%-54%度溴化锂用作收式制冷剂。在医药中，用作催眠剂和镇静剂。还用作锂电池电解质。