the word rectification is: rectification j and jīngliú. (1) Purify, especially by repeated distillation or fractional distillation, and sometimes add some condiments. The phonetic notation is: ㄐㄥㄖㄡ _ Pinyin is: j and jīngliú structure is: refined (left and right structure) distillation (left and right structure).
What is the specific explanation of distillation? We will introduce it to you in the following aspects:
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A distillation method. During distillation, part of the slip liquid is refluxed to improve the operation of low-boiling components in the slip liquid, and the effect is equivalent to simple distillation for many times, which can improve the separation degree of each component. Mostly used in petroleum, chemistry, metallurgy and other industries.
ii. network explanation
rectification distillation is a separation process that uses different volatilities of components in a mixture to separate them. The commonly used equipment includes plate distillation column and packed distillation column. The principle and equipment flow of precision distillation are the same as those of ordinary distillation, but the relative volatility between components in the system to be separated is small (<: 1.5~1.1), so high-efficiency precision packing is adopted to realize the separation and purification of the components to be separated. Isomers often coexist in natural essential oil, a raw material for the production of isolated spices. For example, citronellol and rosanol, which coexist in natural essential oils such as geranium oil, rose oil and rose grass oil, are optical isomers. The boiling point difference of these isomers is relatively small, so it is difficult to achieve the effective separation of this isolated perfume by general distillation process, so precision distillation is widely used in the production of isolated perfume. Efficient packDixongs used in precision distillation columns include bulk packings such as Q-ring packing, McMahon packing, and regular packings such as Sulyer packing. These packings have large specific surface area, good wettability, small liquid holdup and fluid resistance, but the diameter of bulk packed tower should not be too large, otherwise the mass transfer and separation efficiency will drop sharply, which is the "amplification effect" of packed tower. The amplification effect of structured packing is small, so the application of wire mesh corrugated structured packing is more and more extensive.
words about rectification
rectifyrectify.
idioms about rectification
strive for perfection, be knowledgeable but not refined
words about rectification
intensive cultivation, exhausted flattery, make a new start's spirit is full of energy, full of research and explanation, exciting and depressing
1. Sentences about rectification.
2. vacuum rectification tower relates to a sulfolane rectification device in sulfolane production equipment.
3. At present, acetic acid production in Jihua Calcium Carbide Factory still adopts acetaldehyde oxidation to produce acetic acid, and the distillation process adopts the high-low double-tower distillation method.
4. Our factory can also undertake rectification processing of pyridine series compounds and various solvents.
5. The experimental process of reactive distillation of methyl acetate hydrolysis was established, and the technological characteristics and feasibility of reactive distillation were discussed.
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