第一章 流体流动 第二章 流体输送机械 第三章 传热 第四章 吸收 第五章 蒸馏 第六章 化学反应工程学基本原理

Carboxylic acids are just one member of a class of acyl derivatives, RCOY, where the acyl group is bonded to an electronegatives substituent -Y that can act as a leaving group in substitution reactions. Numerous acyl derivatives are possible, but we’ll be concerned only with four of the more common ones, in addition to carboxylic acids themselves: acid halides, acid anhydrides, esters, and amides

17.1 The Acidity of the α Hydrogens of Carbonyl Compounds: Enolate Anions 17.2 Keto and Enol Tautomers 17.3 Reactions via Enols and Enolate Anions

第二章流体输送机械 第一节概述 流体输送机械为流体提供能量的机械。 泵—输送液体机械; 风机或压缩机一气体输送机械。 第二节离心泵 2—1离心泵的工作原理 1.工作原理:在离心力的作用下,高速流体在涡 形通道截面逐渐增大,动能转变为静压能,液体 获得较高的压力,进入压出管。 2.气缚现象:

本文参考国内外文献总结了近几年来抗生素去除方法的研究近况。主要包括:(1)抗生素的定义及主要分类;(2)环境中抗生素的来源:(3)抗生素的去除方法(传统处理法、氧化法、吸附法、电化学处理法、薄膜法、超声法、微生物降解法等),详细阐述了每一种处理方法的作用机理及去除效果:(4)对各种抗生素处理方法进行优缺点的总结并对未来应用做了展望

Aldehydes are named by replacing the terminal –e of the corresponding alkane name with –al. The longest chain selected as the base name must contain the –CHO group, and the –CHO carbon is always numbered as carbon 1

More reactive than benzene toward electrophilic substitution NO2 An deactivating group Less reactive than benzene toward electrophilic substitution Ortho-para director Meta director

第一节 概述 第二节 流体静力学基本方程式 第三节 管内流体流动的基本方程 第四节 管内流体流动现象 第五节 流体流动阻力 第六节 管路计算 第七节 流量的测定

The most characteristic reactions of benzenoid arenes are the substitution reactions that occur when they react with electrophilic reagents. The electrophiles are either a positive ion (E+) or some other electron-deficient species with a large partial positive charge

A ring that contains at least one heteroatom (an atom other than carbon) is called a heterocycle, and a substance based on a heterocyclic ring is a heterocyclic compound. Heterocyclic compounds containing N, O or S are by far the most common