partunitlesson實用教案

1、小測試小測試(csh) 2甲基丁烷(dn wn): 2-methylbutane 環(huán)戊烯:cyclopentene 1,3,5己三烯: 1,3,5-hexatriene 己炔: hexyne 4-hydroxyl-2-butanone： 2-methyl-2-chloropropane:乙醇(y chn): methanol丙酸: Propionic acid 氧化鉀:potacium oxide硫酸鈉:sodium sulfateCH3CCH2CH2CH2OHO第1頁/共10頁第一頁，共11頁。Unit 2 Unit Operations Lesson 5 Classification of

2、 Unit Operations 第2頁/共10頁第二頁，共11頁。 Fluid flow（流體流動） This concerns （關(guān)于）the principles （原理，原則）that determine the flow or transportation of any fluid （流體）from one point to another. Heat transfer（熱傳遞） This unit operation deals with（處理(chl)，涉及） the principles that govern（支配，控制，統(tǒng)制） accumulation and transf

3、er of heat and energy from one place to another.第3頁/共10頁第三頁，共11頁。 Evaporation（蒸發(fā)） This is a special case （特例(tl)，特殊情況）of heat transfer, which deals with the evaporation of a volatile solvent such as water from a nonvolatile solute such as salt or any other material in solution. Drying（干燥） In this op

4、eration volatile（揮發(fā)性的） liquids, usually water, are removed from solid materials第4頁/共10頁第四頁，共11頁。 Distillation（蒸餾）This is an operation whereby （by）components （組分）of a liquid mixture are separated by boiling because of their differences in vapor pressure（蒸汽壓）. Absorption（吸收(xshu)）In this process a com

5、ponent is removed from a gas stream（氣流，氣體主流） by treatment with a liquid.第5頁/共10頁第五頁，共11頁。 Membrane separation（膜分離）This process involves the diffusion（擴散） of a solute（溶質(zhì)(rngzh)） from a liquid or gas through a semipermeable（半滲透的） membrane barrier （薄膜隔層）to another fluid. Liquid-liquid extraction（液液萃?。㊣

6、n this case a solute in a liquid solution is removed by contacting with another liquid solvent which is relatively immiscible（不互溶的） with the solution.第6頁/共10頁第六頁，共11頁。 Liquid-solid leaching（浸取( jn q)） This involves treating a finely divided solid with a liquid that dissolves out （溶出）and removes a so

7、lute or some solutes contained in the solid. Crystallization(結(jié)晶)This concerns the removal of a solute such as a salt from a solution by precipitating （沉淀）the solute from the solution.第7頁/共10頁第七頁，共11頁。 Mechanical physical separation（機械分離(fnl)）These involves separation of solids, liquids, or gases by mechanical means, such as filtration（過濾）, settling（沉降）, and size reduction（破碎）, which are often classified as separate unit operations.第8頁/共10頁第八頁，共11頁。2009/089Homework Common unit operations第9頁/共10頁第九頁，共11頁。謝謝您的觀看(gunkn)！第10頁/共10頁第十頁，共11頁。NoImage內(nèi)容(nirng)總結(jié)小測