冷冻干燥法 meaning in English
cryochem
freeze-dry
Examples
- For these cases lyophilization or freeze drying is available。
这时可用低压冻干法（或称冷冻干燥法）。 - For these cases lyophilization or freeze drying is available 。
这时可用低压冻干法（或称冷冻干燥法） 。 - In this paper , the principles and the main processing of new methods for preparation of ferrite powders are discussed , including self - propagating high - temperature synthesis , low - temperature combustion synthesis , mechanochemical synthesis , hydrothermal synthesis , freeze drying and supercritical fluid drying
综述了铁氧体粉料的新型制备方法的原理和主要工艺过程，包括自蔓延高温合成法、低温燃烧合成法、机械化学合成法、水热法、冷冻干燥法和超临界流体干燥法等。 - Abstract : in this paper , the principles and the main processing of new methods for preparation of ferrite powders are discussed , including self - propagating high - temperature synthesis , low - temperature combustion synthesis , mechanochemical synthesis , hydrothermal synthesis , freeze drying and supercritical fluid drying
文摘:综述了铁氧体粉料的新型制备方法的原理和主要工艺过程，包括自蔓延高温合成法、低温燃烧合成法、机械化学合成法、水热法、冷冻干燥法和超临界流体干燥法等。 - The ratio of isopropyl alcohol and pure water and temperature in the process of freezing are considerated in the research of the preparation of the pt / c electrocatalysts with freeze - drying method . the result shows , when we use 300ml pure water to wash the carbon ( 40mg ) in isopropyl alcohol ( 20ml ) to alter the ratio of isopropyl alcohol and pure water , we get the electrocatalysts with high catalytic activity ; the use of the liquid nitrogen ( - 196 ) to freeze the suspension ( carbon and precursor solution ) can make the pt / c electrocatalysts in high dispersion
采用300ml纯水对20ml异丙醇中的40mg碳载体进行洗涤抽滤,来改变预冻液中的醇水比例,通过冷冻干燥制备pt / c的性能较好;采用液氮对预冻液进行冷冻(预冻温度为- 196 )制备的pt / c催化剂性能较好;冷冻干燥法可以有效地避免加热干燥过程中前躯体离子在碳载体表面的脱附和团聚,进而制备载量大、分散性好、粒径较小的pt / c催化剂。