化工专业英语论文
化学专业英文作文
化学专业英文作文Studying chemistry is like entering a whole new world. It's all about atoms, molecules, reactions, and the amazing things they can create. It's like magic, but withscientific explanations.Chemistry experiments are both exciting and nerve-wracking. You never know what will happen when you mix different chemicals together. It's a bit like playing with fire, but in a controlled and safe environment.The periodic table is like a map of the chemical world. It's full of elements, each with its own unique properties and behaviors. Learning about each element feels like getting to know a new friend, with its own quirks and characteristics.Lab reports are a big part of studying chemistry.They're like telling a story, but with data and observations instead of characters and plot. It's all aboutdocumenting what happened in an experiment and what it means in the bigger picture of chemistry.Chemistry equations can be intimidating at first, but once you understand the rules, they start to make sense.It's like solving a puzzle, trying to balance the elements on both sides of the equation to make everything work out perfectly.Organic chemistry is like learning a new language. It's full of complex structures and reactions, and it takes time and practice to become fluent in it. But once you do, it opens up a whole new world of possibilities in the field of chemistry.In the end, studying chemistry is all about curiosity and discovery. It's about asking questions, conducting experiments, and uncovering the secrets of the chemical world. It's a journey of constant learning and exploration, and it never fails to amaze and inspire.。
能源化工的英文作文
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化学化工专业英语论文
橡胶是一种伸缩性优异的弹性体，但其综合性能并不令人满意，生产黑的加入使得制品均为黑色，且档次不高。而纳米SiO2在我国的问世为生产出色彩新颖、性能优异的新一代橡胶制品奠定了物质基础。
在普通橡胶中添加少量纳米SiO2后，产品的强度、耐磨性和抗老化性等性能均达到或超过高档橡胶制品，而且可以保持颜色长久不变。纳米改性彩色三元乙丙防水卷材，其耐磨性、抗拉强度、抗折性、抗老化性能均提高明显，且色彩鲜艳，保色效果优异。彩色轮胎的研制工作也取得了一定的进展，如轮胎侧面胶的抗折性能由原来的10万次提高到50万次以上，有望在不久的将来，实现国产汽车、摩托车轮胎的彩色化。
Key words:mono-dispersed; silica;Zeta potential; stability
第1章 前言
二氧化硅无机粉体在光、热、电、磁等方面具有奇特性能，得到广泛应用，但在许多生产加工工艺中，均需要粉末均匀且稳定地分散于液相介质中，近年来，由于新型陶瓷、铜版纸以及水性涂料的发展，其中对无机填料的细度和水中分散性要求日益提高，从而迫切要求无机填料能在水中十分均匀地稳定分散，甚至可以认为是工艺成功的关键所在[1]，但超细粉体比表面积大、表面能高易使粒子相互吸引而具有不稳定的倾向，粒子产生团聚影响其应用效果。而电位的大小是衡量胶体粒子稳定性的重要参数。Zeta电位的重要意义在于它的数值与胶态分散的稳定性相关。Zeta电位是对颗粒之间相互排斥或吸引力的强度的度量。分子或分散粒子越小，电位(正或负)越高，体系越稳定，即溶解或分散可以抵抗聚集。反之，Zeta电位(正或负)越低，越倾向于凝结或凝聚，即吸引力超过了排斥力，分散被破坏而发生凝结或凝聚[2]。SiO2悬浮液的稳定性，与其在水中的电动性质密切相关。粉体表面的电位绝对值高，表明粉体表面电荷密度高，颗粒间的排斥力大，粉体易于稳定分散悬浮。电位的主要用途之一就是研究胶体与电解质的相互作用。由于许多胶质是带电的，特别是那些通过离子表面活性剂达到稳定的胶质，它们以复杂的方式与电解质产生作用。与它表面电荷极性相反的电荷离子（抗衡离子）会与之吸附，而同样电荷的离子（共离子）会被排斥。因此，表面附近的离子浓度与溶液中与表面有一定距离的主体浓度是不同的。靠近表面的抗衡离子的积聚屏蔽了表面电荷，因而Zeta电位降低。Zeta电位的测量使我们能够详细了解分散机理，它对静电分散控制至关重要。对于酿造、陶瓷、制药、药品、矿物处理和水处理等各个行业，Zeta电位是极其重要的参数。
化学工程英语作文
化学工程英语作文Chemical engineering is a discipline that plays a pivotalrole in the development and advancement of modern society. It involves the application of physical science, biology, and chemistry, along with math and economics, to design, develop, and produce useful products and services. This essay will explore the various ways in which chemical engineering has shaped our world, from the pharmaceutical industry to environmental sustainability.Firstly, chemical engineering has been instrumental in the production of pharmaceuticals. The development of life-saving drugs and therapies is heavily reliant on the expertise of chemical engineers who work to create and refine the chemical processes that produce these medications. They are also involved in the design of equipment and facilities that ensure the safe and efficient production of these vital compounds.Secondly, the field of chemical engineering has made significant contributions to the energy sector. Engineers in this field are at the forefront of designing and optimizing processes for the production of fuels, including the development of cleaner and more sustainable energy sources. This includes the advancement of biofuels, solar energy, and other renewable resources, which are crucial in the global shift towards a greener economy.Moreover, chemical engineering is essential in the food and beverage industry. It is responsible for the development of processes that ensure the quality, safety, and longevity of food products. This includes the preservation techniques, packaging innovations, and the development of additives that enhance flavor and shelf life without compromising health.In addition to these areas, chemical engineering is also critical for environmental sustainability. Engineers work on solutions to reduce pollution, manage waste, and develop processes that minimize the environmental impact of industrial operations. This includes the treatment of wastewater, the development of more efficient chemical processes, and the creation of materials that are biodegradable or recyclable.Furthermore, the role of chemical engineering extends to materials science, where it is used to create new materials with specific properties for various applications. This includes the development of polymers for use in medical devices, the creation of stronger and lighter materials for aerospace engineering, and the synthesis of advanced materials for electronics.In conclusion, chemical engineering is a multifaceted discipline that has far-reaching implications for the betterment of society. From healthcare to energy, from food production to environmental protection, the contributions of chemical engineers are integral to the progress and well-being of our modern world. As we continue to face newchallenges, the innovative solutions that chemical engineering can provide will be more important than ever.。
关于化学的专业英语小作文
关于化学的专业英语小作文Chemistry is a fascinating science that delves into the composition and properties of matter. It is the study of how elements interact and transform, revealing the secrets of the universe at a molecular level.In the realm of chemistry, the periodic table stands as a testament to the systematic organization of elements. Each element has its unique atomic structure, and understanding these structures is key to predicting reactions and behaviors.Experimentation is at the heart of chemistry. It is through the meticulous design and execution of experimentsthat we uncover new compounds, reactions, and insights intothe world of matter. The lab is a place of discovery, where hypotheses are tested and knowledge is expanded.Chemical reactions are the cornerstone of this science. They can be simple or complex, exothermic or endothermic. The balance of reactants and products, governed by the law of conservation of mass, is a fundamental principle that guides our understanding.Analytical chemistry is the branch that focuses on the detection, identification, and quantification of chemical substances. It plays a crucial role in various industries,from pharmaceuticals to environmental monitoring, ensuring safety and quality.Organic chemistry, a sub-discipline, deals with carbon-containing compounds. The complexity of organic molecules and their vast array of reactions make it a rich field for innovation and the development of new materials and drugs.Biochemistry, another branch, explores the chemical processes within living organisms. It is the intersection of biology and chemistry, where the understanding of enzymes, proteins, and metabolic pathways is crucial for advancements in medicine and nutrition.Chemistry education is vital for nurturing the next generation of scientists. It equips students with the analytical skills and knowledge base necessary to contribute to scientific research and technological innovation.In conclusion, chemistry is an ever-evolving field with applications that touch every aspect of our lives. From the medicines we take to the materials we use, the study of chemistry is integral to the progress of human civilization.。
化学专业英语结课论文
化学专业英语结课论文摘要;化学科学技术发展战略更加贴近社会和经济需求, 生态环境恶化严重干扰可持续发展。
化学科学技术活动总目标是:提供安全的能量、化学品和制造品, 既不会不可逆转地消耗地球上的稀有原料, 也不会产生有害物质污染地球;发现和创新新物质, 研究物质的化学和物理转化, 检测鉴定各种尺度物质的结构和性质;理论化学、计算化学和过程系统工程的创新应用, 及其与生物学、医药、电子学、信息学协同并在材料、医药、能源、信息、环境以及国家安全领域激励人心的应用。
科学研究和人才培养都充满学科交叉。
关键词:化学科学技术;人与自然协调;可持续发展;创新Chemical Science and Technology and Sustainable DevelopmentAbstract:Development strategy of chemical science and technology depends more and more on the demand of society and economic development nowadays, while the environment deterioration seriously interferes the sustainable development.So the chief objectives of chemical science and technology are:to provide safe energy, chemicals and products;not to consume the rare materials on earth irreversibly;not to produce harmful wastes to pollute the environment;to discover and innovate new compounds;to make research on the chemical and physical transformation of substances;to detect and determine the structures and the properties of materials of various sizes;and to make the innovative application of theoretical chemistry, computer chemistry and processing systematic engineering and their synergies with biology, pharmaceutics, electronic sand informatics for the application in the fields of materials, pharmaceutics, energy resources, information, environment and national security .Subject intersection always penetrates in scientific research and talent cultivation.Key words:chemical science and technology;harmony of human and nature;sustainable development; discover and innovate[1]1 “教”之道1.1 与时俱进，科学合理安排教学内容材料化学的知识面很广，相应的《材料化学专业英语》既要综合非金属材料又要涵盖高分子材料，既要涉及单一材料，又要涉及复合材料，既要涉及结构材料又要涉及功能材料，此外还要与大学基础英语相衔接又要为学生以后毕业论文中摘要的书写及以后研究生深造的英语打好基础，覆盖面广，且各方面的知识更新的很快!所以在教学内容安排上，必须科学合理，与时俱进![2]1.2 走人与自然协调的可持续发展之路通过几年的教学改革,学生对以专业阅读为基础,强调培养专业英语的实际应用能力和学术交流能力的化学专业英语课程的教学内容、培养方式普遍认可。
化工方面引言英语范文
化工方面引言英语范文English:Chemical engineering plays a crucial role in various industries by applying the principles of chemistry, physics, mathematics, and economics to efficiently convert raw materials into valuable products. This field encompasses a wide range of processes including chemical reactions, separations, heat transfer, and fluid dynamics, among others. The expertise of chemical engineers is essential in designing and optimizing processes to ensure the safety, reliability, and sustainability of industrial operations. Additionally, they work towards minimizing waste and environmental impact while maximizing productivity and efficiency. With an increasing focus on sustainable development and the need for innovative solutions to global challenges, the importance of chemical engineering continues to grow in shaping a more sustainable future for generations to come.中文翻译:化学工程通过应用化学、物理、数学和经济学的原理，将原材料高效地转化为有价值的产品，在各个行业中发挥着至关重要的作用。
化工最重要的三本专业课英语作文
化工最重要的三本专业课英语作文The Three Most Important Professional Courses in Chemical EngineeringChemical engineering is a diverse and challenging field that requires a strong foundation in the fundamental principles of chemistry, physics, and mathematics. To succeed as a chemical engineer, it is crucial to have a solid understanding of the key concepts and techniques that are essential for designing, analyzing, and optimizing chemical processes and products. In this article, we will explore the three most important professional courses in chemical engineering, which are crucial for developing the skills and knowledge needed to excel in this field.1. ThermodynamicsThermodynamics is one of the most fundamental and important courses in chemical engineering. It is the study of the relationships between heat, work, and energy in chemical systems, and plays a crucial role in the design and analysis of chemical processes. Thermodynamics provides engineers with the tools and techniques needed to understand and predict how energy is transferred and transformed in chemical reactions andprocesses, and how these processes can be optimized for efficiency and sustainability.In a thermodynamics course, students learn about the laws of thermodynamics, heat transfer, phase equilibria, and reaction kinetics. They also develop skills in using thermodynamic models and software to analyze and design chemical processes. Thermodynamics is essential for a wide range of applications in chemical engineering, including the design of heat exchangers, reactors, and distillation columns, as well as the optimization of energy efficiency and environmental sustainability in chemical processes.2. Fluid MechanicsFluid mechanics is another key course in chemical engineering that is essential for understanding the behavior of fluids in motion. It is the study of how fluids such as liquids and gases flow and interact with solid boundaries, and is crucial for the design and analysis of processes involving fluid flow, such as pumps, piping systems, and chemical reactors. Fluid mechanics provides engineers with the tools and techniques needed to predict and control the behavior of fluids in chemical processes, and to optimize them for efficiency and performance.In a fluid mechanics course, students learn about the fundamental principles of fluid flow, viscosity, turbulence, and pressure drop. They also develop skills in using fluid mechanics models and software to analyze and design fluid systems. Fluid mechanics is essential for a wide range of applications in chemical engineering, including the design of mixing and separation equipment, the analysis of reaction kinetics and mass transfer, and the optimization of flow rates and pressures in chemical processes.3. Reaction EngineeringReaction engineering is the third key course in chemical engineering, and is essential for understanding and optimizing chemical reactions in processes. It is the study of how chemical reactions occur, how they are affected by factors such as temperature, pressure, and concentration, and how they can be optimized for efficiency and selectivity. Reaction engineering provides engineers with the tools and techniques needed to design and analyze chemical reactions, and to optimize them for performance and sustainability.In a reaction engineering course, students learn about the kinetics of chemical reactions, chemical reactor design, and reactor performance analysis. They also develop skills in usingreaction engineering models and software to analyze and design chemical reactions. Reaction engineering is essential for a wide range of applications in chemical engineering, including the design of catalytic converters, polymerization reactors, and bioreactors, as well as the optimization of reaction conditions and selectivity in chemical processes.In conclusion, thermodynamics, fluid mechanics, and reaction engineering are the three most important professional courses in chemical engineering, and are essential for understanding and optimizing chemical processes and products. By mastering these courses, chemical engineers can develop the skills and knowledge needed to excel in this challenging and rewarding field, and to make a positive impact on society and the environment through their work.。
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Lubricating oil clay refining process Clay refining as the effective method of improving oil color, anti-emulsification degree, anti-oxidation stability and insulation performances, is widely used in the process of lubricating oil, wax and waste lubricating oil regeneration. Although the lube oil hydro-treating process has many advantages, and has been partially replaced the clay refining, the latter is still necessary for some special lubricating oil processing, and occupy a certain position in the new lubricating oil factory. Lubricating oil clay refining unit is using activated clay has good selective adsorption, fully mixed with oil in high temperature, the adsorption of colloid and asphaltene in oil is not ideal component, thereby improving the oil color, carbon residue, anti-oxidation stability, corrosion resistance, anti-emulsification degree, improve their performances. Lubricating oil carclazyte purification device is the key device to improve the quality of lubricating oil production process. This paper mainly introduces the process and characteristics of Chinese oil Karamay Petrochemical Company lube oil clay refining unit. Technological process: Clay refining process is a powdery clay mixing the feedstock to form a suspension, which heated to a certain temperature by a heating furnace, then into the evaporator to maintain a certain time to reach adsorption equilibrium after filtration to remove the spent bleaching earth, finally refined oil has been got. The process mainly includes 3 main processes, which are the raw material oil and clay mixing, heating refining and filtration separation. Processes raw oil into the oil from the clay refining feedstock tank, the material pumped into the mixing tank, white clay soil from the tank through the clay feeder system add into a mixing tank and mix with oil proportionally. The mixture of clay and oil in the mixing tank are pumped into the furnace ,after heated to the required temperature, into the evaporation stripper. Oil and clay to maintain a certain contact time in the tower , the vacuum system generates negative pressure, evaporating the water and light components in the mixture of clay and oil, then the light fraction and water through the steam out of top cooler cooling to 45 ℃, flow to the vacuum liquid separation tank for oil-water separation.The non-condensable gas in vacuum liquid separation tank top is extracted by vacuum pump, to maintain the system vacuum. Vacuum liquid separation tank below the oil and water into the oil-water separation tank, oil and water separation by density difference of oil and water, dehydrated oil flows into the dirty oil tank regularly output from the device. After the stripping, tower bottom oil pumped out, through a heat exchanger and exchange heat with the feedstock, after cooler, and then to conduct a primary plate filter to filter out most of the clay in slurry oil. Once oil slurry filtered into the transition tanks, pumping by the pump to the secondary filter to filter out the remaining clay or other impurities in the oil into semi-finished product tank, and then pumped out ,finally, after a cooler cooling to 60 ~70 ℃ output from the device. Technological characteristics: The first: Clay uesing negative pressure suction mode, which uses a vacuum pump to generate a negative pressure, the clay from the warehouse direct inhalation hopper to avoid positive operating result in dust flying, working to improve the feeding environment. The second: In order to ensure that qualified mechanical impurities content of products, filtration system uses a two-stage filtration. Primary filter using frame filter, this filter filtered through filter cloth , most of the clay in the primary filter be filtered out, but not able to make the clay content in the oil dropped to the specified index , in order to ensure oil quality, also need to use filter paper as a filter medium for further filtration,that is two level filter. The third: Clay feed metering system adopts sensors weighing feeder, using PLC programmable controller automatically control, weighing system used precision pneumatic weighing technology, making feeder accurate measurement, and easy to operate. Anyhow, lubricating oil clay refining technology still has some advantages, there are still widely using in some special processing, as long as the further improvements, its usefulness will be greatly increased.