众文网1.(跪求高手)毕业设计硫酸转化的中文摘要如何英语翻译?
Sulfuric acid is widely used in chemical fertilizer industry, petrochemical industry, iron and steel industry, non-ferrous metallurgical industries. One of the largest consumers of sulfuric acid is a chemical fertilizer industry. Sulfuric acid in the dye industry, chemical fiber industry, plastics industry, the nuclear industry and the aerospace industry, etc. There are some applications. The design is an annual output of 100,000 tons of sulfuric acid into a 100% section. During the design process, first of all, familiar with the sulfuric acid, sulfur dioxide in nature, uses and industrial development. Understanding of the manufacture of sulfuric acid in two ways, contact the Law and nitrification. The design of the main method used in manufacture of sulfuric acid exposure. Familiar with the sulfur dioxide and then into the transformation process theory and process operating conditions and the reasons selected. The process of selection into the type of catalyst used and determine its usage. Finally, determine the process, the use of two three or four paragraphs into a period-style process. Then the process of the selected material and heat balance, as well as the main process equipment, heat exchanger size to carry out the calculation and selection process to determine the general size converter. Conversion projects in order to save energy, reduce costs, the use of sulfur dioxide gas into the cold air preheat furnace, while reducing the transformation temperature, recovery of the heat converter. Determination of heat exchanger is determined in accordance with heat exchanger heat transfer area to meet the requirements of the standard selection of heat exchanger, heat exchanger and heat transfer coefficient and heat transfer to the checking area. Keywords: sulfuric acid, the transformation of sulfur dioxide, catalyst, heat exchanger, process。
2.毕业论文 用英语怎么说?
毕业论文的英文翻译是thesis，音标是英 [ˈθi:sɪs] 美 [ˈθisɪs] 。
thesis
n.论文，毕业论文；论点，论题；命题
扩展例句
1、There is no empirical evidence to support his thesis.
他的论文缺乏实验证据的支持。
2、How well does this thesis stand up to close examination?
这个命题经得起推敲吗？
3、He has finished his thesis.
他的论文完成了。
4、She's finished writing her thesis.
她那篇论文写出来了。
5、Please write an abstract of this article 〔 thesis 〕.
请写一份这本书〔这篇论文〕的摘要。
The article has a clear-cut thesis and arguments, but lacks reasoning.
文章论点、论据鲜明，但缺乏论证。
3.工业上制取硫酸的原理
硫酸最重要的工业制法是接触法。
接触法主要的原料为燃硫或硫化铁尔来的二氧化硫，及空气中的氧，使二氧化硫氧化而为三氧化硫，吸收于水中，即可得任何浓度的硫酸。惟此氧化，须有某种接触剂存在时始有作用；最常用者为铂及钒之氧化物。二氧化硫自燃硫而得者可直接使其氧化，若自燃硫化铁的燃烧，而得者须先降冷，洗之以酸或由滤过法或由沉淀法使之清洁；灰尘，硫蒸汽，砷，磷及其它物质存于气流中者，必须除去免其害及接触剂，为不纯物质对于氧化矾危害较铂轻。
(4)接触法制硫酸的反应原理：燃烧硫或金属硫化物等原料来制取二氧化硫。使二氧化硫在适当的温度后催化剂的作用下氧化成三氧化硫，在使三氧化硫跟水化合生成硫酸。二氧化硫跟氧气在催化剂的表面上接生产过程：以硫铁矿为原料时步骤如下
(a)二氧化硫的制取和净化：硫铁 矿粉碎成细小矿粒在沸腾炉充分燃烧4FeS2+11O2 ===== 2Fe2O3+8SO2 从沸腾炉里出来的气体叫炉气，其中含二氧化硫、氧气、氮气、水以及一些杂质，如砷、硒等化合物矿尘等，杂质和矿尘都会使催化剂作用减弱或失去作用。这种现象叫催化剂幅。水蒸气对设备和生产也有不良影响。为此在进行氧化反应前，炉气必须通过除尘洗涤（除去硒、砷等化合物）干燥等净化设备应除去有害杂质，净化后的混合气体主要含二氧化硫，氧气和氮气。
(b)二氧化硫氧化成三氧化硫，二层催化剂中装有一个热交换器，用来把硫酸的工业制法
(c)三氧化硫的吸收和硫酸的生成：为了更可能把三氧化硫吸收干净并在吸收过程中不形成酸雾，工业上是用98.3%的硫酸来吸收三氧化硫，在吸收塔里一氧化硫从塔下部通入98.3%的硫酸从塔顶喷下，成品硫酸从塔底放出98.3%的硫酸。吸收三氧化硫后浓度增大，然后把它用水稀释成稀硫酸，配制成各浓度的硫酸。
(d)尾气中的二氧化硫回收：从吸收塔上部导出的没有起反应的氧气和少量二氧化硫以及不起反应的氮气等气体工业上称尾气，用尾气中含少量二氧化硫放空气中会造成大气污染，尾气中二氧化硫回收常采用氨吸收法
SO2+2NH3+H2O =====(NH4)2SO3
(NH4)2SO3+SO2+H2O ===== 2NH4HSO3 当吸收液中亚硫酸氢铵达一定浓度后再跟93%的硫酸反应放出二氧化硫气体。放出的二氧化硫可用于制液体二氧化硫，硫酸铵可制成肥料。
盐酸的工业制法之一
工业上制取盐酸时，首先在反应器中将氢气点燃，然后通入氯气进行反应，制得氯化氢气体。氯化氢气体冷却后被水吸收成为盐酸。在氯气和氢气的反应过程中，有毒的氯气被过量的氢气所包围，使氯气得到充分反应，防止了对空气的污染。在生产上，往往采取使另一种原料过量的方法使有害的、价格较昂贵的原料充分反应。
盐酸的工业制法之二
盐酸是氯比氢的水溶液。在制革、印染、食品、医药、化工、冶金等工业部门大量使用盐酸。工业上生产盐酸的主要方法是使氯气跟氢气直接化合，然后用水吸收生成的氯化氢气体。氯化氢是在合成塔里合成的。
近年来，工业上还发展了由生产含氯有机物的副产品氯化氢制盐酸。例如，氯气跟乙烯反应，生成二氯乙烷（C2H4Cl2）。它再经过反应生成氯乙烯，后者是制聚氯乙烯的原料。
C2H4Cl2=C2H3Cl（氯乙烯）+HCl
氯化氢是制氯乙烯的副产品。
4.好心人 帮忙翻译下 毕业设计的摘要部分
This design is dependent on a rapid gentamicin sulfate production of the new methods, the process by changing the culture in the process of fermentation temperature and feeding time, the production process than ever before fermentation greatly shortened the training cycle. In this design, First a brief account of the physical and chemical properties of gentamicin sulfate sulfate, drugs, and drug resistance in the process, then gentamicin sulfate production process outlined. Gentamicin sulfate in the production process in the narrative We know that gentamicin sulfate using fermentation technology training, divided into training and seed bottle fermentation flask culture. Gentamicin sulfate prepared by the fermentation, crude and refined composition of the three Section. Section fermentation tank, including seeds Sterilization, inoculation, seeds can cultivate, fermentation tank training. Extracts Section, including resin and resin adsorption analysis. Refining Section, including the enrichment of desorption, to the salt, decolorizing. After three Section out in front of refined through the liquid and spray drying Packaging the final product. III is the basis for the design of pharmaceutical companies, is designed from quantitative to qualitative, is the basis for the pipeline design, this design is the core content. Centering on the design of a rapid gentamicin sulfate production of the new method A more detailed material balance, energy balance, equipment selection and calculation. Materials accounting, including six parts, namely the fermentation process to account for two, fermentation materials account for an adsorption process to account for, Screening process to account for, anti-washing, elution process to account for, refined the process to account for. Energy ba。
5.急求论文摘要翻译化工方面的
本设计是年产10万吨铬酸酐的合成工艺，采用硫酸法中的单罐法进行生产。
单罐法是硫酸法中较为简单的一种，重铬酸钠和浓硫酸的反应、澄清在同一反应器内完成。配比方面由于副反应消耗硫酸，硫酸与重铬酸钠的摩尔比应比正常计算的稍过量，一般控制摩尔比为2.05 ~ 2.10。
投料方面由于两者反应很快，故应先将反应锅预热后再投料，使重铬酸钠和硫酸接触之始迅即反应。投料方式采用三步投料法，对于本次设计来说，经过物料衡算，具体的操作流程为：第一步，将占总量80%的熔融重铬酸钠1200kg（含铬酸酐67.1%，即100%Na2Cr2O7•2H2O）及768kg 92.5%硫酸加热反应釜内，硫酸与重铬酸钠的摩尔比为1.8。
加热混合物经30min至170℃；第二步，加入320kg重铬酸钠及205.2kg硫酸，硫酸雨重铬酸钠的摩尔比1.95。加热经25min至198℃；第三步，加剩余硫酸至罐内，硫酸与重铬酸钠的摩尔比为2.10。
加热经10min至204~205℃。硫酸此合成工艺关键在于原料的配比、投料时机的把握、反应后的澄清分离和制片等关键流程上。
主要设备包括反应釜、铬酸酐结片机和氯气吸收装置This design is yearly produces 100,000 tons chromic anhydrides the synthesis crafts, uses in the sulfuric acid method the single pot process to carry on the production. The single pot process is in the sulfuric acid method a simpler one kind, the sodium bichromate and the strong sulfuric acid response, clarifies in the identical reactor completes. The allocated proportion aspect as a result of the side reaction consumption sulfuric acid, sulfuric acid and the sodium bichromate mole compared to should compared to the normal computation slightly excessive, generally a control mole of ratio is 2.05 ~ 2.10. Because the batch feeding of aspect both response is very quick, therefore after should respond the pot first preheating, gets ready the materials again, causes beginning of the sodium bichromate and the sulfuric acid contact responded immediately. The batch feeding way uses three step batch feeding law, regarding this design, passes through the material balance, the concrete operation flow is: First step, will occupy total quantity 80% fusing sodium bichromate 1200kg (chromic acid anhydride 67.1%, namely 100%Na2Cr2O72H2O) and in the 768kg 92.5% sulfuric acid heating reaction still, the sulfuric acid and a sodium bichromate mole of ratio is 1.8. Heating mixture after 30min to 170℃； Second step, joins the 320kg sodium bichromate and the 205.2kg sulfuric acid, a sulfur acid rain sodium bichromate mole of ratio 1.95. Heating after 25min to 198℃； Third step, adds the surplus sulfuric acid to the pot, the sulfuric acid and a sodium bichromate mole of ratio is 2.10. Heating after 10min to 204~205℃. After the sulfuric acid this synthesis craft key lies in raw material the allocated proportion, the batch feeding opportunity assurance, the response to clarify the separation and the movie-making and so on the essential flow. The major installation including the reaction still, the chromic anhydride ties the piece machine and the chlorine absorption plant。
6.急,帮忙把化学论文的摘要翻译成英文
reaction time, with water and inhibitor Esterification of the impact of the results showed that: acid ratio of 1, the yield up xx%. Key words: butyl acrylate, catalytic synthesisAbstract: The key to the satisfaction of hydrogen sulfate catalyst of butyl acrylate, the amount of catalyst for the reaction of the total XX % Inhibitor for hydroquinone.5 alcohol. Discussed in detail the amount of catalyst, with water as toluene, temperature control in the 113 ~ 125 ℃ within the scope of the reaction time is 2 h, for alcohol acid ratio:1。