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1)  series extraction theory
串级萃取理论
1.
Application of series extraction theory in production;
串级萃取理论在生产中的应用
2)  countercurrent extraction
串级萃取
1.
Theoretical analysis of effective separation factor for multi-component rare earths in countercurrent extraction;
多组分稀土串级萃取有效分离系数的理论分析
2.
First, the relative flow rate of each outlet was calculated from the purification indexes, then the mass balance and extraction equilibrium of countercurrent extraction were studied.
研究了多组分、多出口稀土串级萃取体系静态优化设计过程的精确计算方法。
3.
Based on our previous work about the static design algorithm for the multi-component and multi-outlet rare earth countercurrent extraction, the computational program under 32-bit Windows operation system was composed and verified by the dynamic simulation for different rare earth separation systems with satisfactory results.
基于多组分多出口稀土串级萃取优化参数的静态设计算法,设计了相应的计算程序,采用该程序针对某稀土分离实例进行了静态参数计算,并对最优化工艺参数进行了动态仿真验证。
3)  counter current extraction
串级萃取
1.
Equations of optimized extraction factor for minimum production cost in counter current extraction;
串级萃取最低成本优化萃取比方程
4)  cascade extraction
串级萃取分离
5)  rare earth cascade extraction
稀土串级萃取
1.
Soft-sensor of element component content based on multiple models for the rare earth cascade extraction process;
稀土串级萃取分离过程元素组分含量的多模型软测量
2.
Bilinear model of rare earth cascade extraction process and its parameter identification;
稀土串级萃取分离过程的双线性模型及其参数辨识
3.
The process of rare earth cascade extraction separation has the comprehensive complexity of multivariable, nonlinearity, large state delay, complicated working conditions, etc.
稀土串级萃取分离过程具有多变量、非线性、大滞后、工况复杂等综合复杂性,萃取过程元素组分含量难以连续在线检测、产品纯度难以实现优化控制,因此,以提高产品纯度和金属直收率为目标的自动控制技术的研究成为关键。
6)  Counter current micro-column extraction
串级微色谱柱萃取
补充资料:串级冲击式采样器(cascade impact sampler)
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性质:又称串级冲击式采样器(cascade impact sampler)。采集大气中不同粒度颗粒物的采样器。目前常用的有按颗粒物粒径大小分为9级(即9个粒径范围)的和5级的;前者称为安德逊(Anderson)分级采样器,后者称为安德逊大容量分级采样器。它们都是采用串级冲击(cascade impact)的原理设计而成的颗粒粒度分离装置,加上动力抽气泵组成。此外还有双分道采样器(dichromatomous sampler)可采集空气中小于15μm的颗粒物(称可吸入颗粒物),并分成粗粒(2.5~15μm)和细粒(<2.5μm)两种。分级采样器收集的不同粒度颗粒物,可研究其中所含的化学物质和形貌的差异等,这些信息可作为鉴别污染来源、控制可吸入有害物质的重要依据。

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