第一课 patentII
新概念2第一课教案
新概念2第一课教案教案标题:新概念2第一课教案教案目标:1. 通过本课的学习,学生能够掌握新概念2第一课的词汇和语法知识。
2. 培养学生的听、说、读、写的能力,提高他们的英语综合运用能力。
3. 培养学生的学习兴趣和自主学习能力。
教学重点:1. 掌握新概念2第一课的词汇和句型,能够正确运用。
2. 培养学生的听力和口语表达能力。
教学难点:1. 学生对新概念2第一课的语言知识的理解和运用。
2. 学生的听力理解能力的培养。
教学准备:1. 教材:《新概念英语2》第一课教材、练习册。
2. 多媒体设备:投影仪、音响设备。
3. 教具:单词卡片、图片等。
教学步骤:引入:1. 利用图片或实物引入本课的话题:家庭。
2. 通过提问学生关于家庭的问题,激发学生的兴趣。
听力训练:1. 播放录音,让学生跟读课文,注意语音语调。
2. 播放录音,学生听录音并完成相关的听力练习。
3. 分组进行对话练习,模仿录音中的对话内容,练习听力和口语表达能力。
语言知识讲解:1. 教师介绍本课的重点词汇和句型,并进行解释和示范。
2. 学生跟读词汇和句型,进行口语练习。
语法练习:1. 学生根据教师的指导,完成相关的语法练习。
2. 教师对学生的练习进行纠正和指导。
拓展活动:1. 学生分组进行角色扮演,模拟对话情景,练习语言交际能力。
2. 学生自由发挥,用所学知识编写小短文,展示他们的写作能力。
总结:1. 教师对本课的重点内容进行总结,并进行复习。
2. 学生进行小结,回答教师提出的问题。
作业布置:1. 布置课后作业,包括完成练习册相关练习、背诵课文等。
2. 鼓励学生自主学习,提供相关学习资源和建议。
教学反思:1. 教师对本节课的教学效果进行评估和反思。
2. 教师根据学生的反馈和表现,调整教学策略和方法。
注:以上教案仅为示例,实际教案编写时应根据具体教学内容和学生特点进行调整和完善。
新概念二 第一课课件
课文注释
4.were sitting behind me.They were talking loudly.······坐在我的身后,大声地 这两句的时态为过去进行时。(cf.第7课语法) 5.I got very angry.我非常生气. get在这里有“逐渐变得”的含义,接近become,是个表示过程的动词,表示状态的化。而l was very angry则仅表示当时的状态是生气,并不暗示过程。 6.In the end,最后,终于。 表示一段较长的时间之后或某种努力之后: She tried hard to finish her homework by herself.In the end,she had to ask her brother for help. 她试图自已完成家庭作业,但最后她不得不请她兄弟帮忙。
课文注释
7.none of your business,不关你的事。 (1) sb’s business指某人(所关心的或份内)的事: It is my business to look after your health.我必须照顾你的身体健康。 This is none of his business.这根本不关他的事。 (2)表示否定的代词none意义上相当于not any或no one.但语气较强: She kept none of his letters.他的信件她一封也没有保留。 None of my friends left early.我的朋友没有一个早离开的。 none of这个短语有时可以表达一种断然、甚至粗暴的口气, 尤其是在祈使句中: None of your silly remarks!别说傻话了!
开学季教学通用PPT模板
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03.教学过程计划
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02.教学疑点难点
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04.教学总结分享
persons, legal persons
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04教学总结分享 A company is an association or collection of individuals, whether natural persons, legal persons, or a mixture of both.
新概念英语第二册第一课PPT
7. angry. adj. be angry with sb be angry at sth get angry angrily. adv . say angrily talk angrily anger. n. his anger her mother’s anger express anger control anger
1.Why did the writer complain to the people behind him ?
Because they were talking so loudly that he could not hear the actors .
Read comprehension
A private conversation
Retelling the story
Key structures: word order in simple statements
(6) 1
2
3
4 5 (6)
(Time) Subject /Verb /Object or Complement/ Manner/Place/(Time)
The children played games quietly in their room yesterday .
等级考试(加学分)
在校大学生考试:CETS=College English Test System(Band 4) ---就业 ---提升英语水平 大学生和社会考生: PETS=Public English Tests System (Band 3;
Band 2; ) ---自学考试毕业考试免试 ---口语笔试分考,口语证(旅游、外贸、酒店等) ---提升英语水平 医学英语考试:METS=Medical English Tests System (Band 3;
新概念英语2第一课PPT
语法掌
简单陈述句(declarative sentence)
I am a teacher.
You are sitting here. He knew.
He gave me one gilt.
句子结构: 1. 主谓
He smiled. I walk. I don’t know. ……
2. 主谓宾
(careful, carefully)
peacefully(peaceful, peacefully) The girl is sleeping____________ lovely The dog is very__ ______ (love, lovely)
Review
A private conversation Go to the theatre Have a seat Pay attention to It’s none of your
n. 座位 meat heat easy …
sit
v. 坐
请坐:
Have/take a seat, please. Sit down, please.
attention [ə'tenʃən] n. focus on sth. 注意,重视
pay attention to sth. pay more/some/no/little attention draw/catch the attention of sb. pay more attention to Tom, you should________________ your pronunciation.
n. 会话,会谈
have a conversation with sb. have a conversation about sth. 与某人谈话 谈论某事
新概念英语2第一课PPT
Completion 1
The sun rises in the east.
Answer
Fill in the blanks to make the following sentence grammatically correct: "I _____ my homework last night."
Consistent practice
02
Regularly practice the language skills you learn through speaking, writing, and listening exercises to improve fluency and accuracy.
Compound Sentence
A sentence that contains two or more simple sentences combined with a conjunction or a semicolon. Example: "The dog chased the cat; the cat hid under the bed."
In both countries, it is important to maintain eye contact during a conversation as a sign of respect and honesty.
In the United Kingdom, it is customary to greet people with a handshake upon meeting, and often a kiss on the cheek is exchanged among close friends and family.
可爱简约风开学第一课主题班会PPT模板
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这里输入本学期的主 要教学安排,如课程 计划、主要事件时间 点等。
PART 04
主题教育总结
Thematic Education Summary
04.主题教育总结
Semester Schedule
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这里输入本学期的主要教学安排,如课程计划、主
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这里输入本学期的主要教学安排,如课程计划、主 要事件时间点等。
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这里输入本学期的主要教学安排,如课程计划、主 要事件时间点等。
03.本学期的安排
02.假期内容分享
Holiday Story Sharing
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Thematic Education
YOUR LOGO
这里输入本次开学第一课的教育主题,进行简单选题说明并进行适当拓展延伸。这里输入本次开 学第一课的教育主题,进行简单选题说明并进行适当拓展延伸。这里输入本次开学第一课的教育 主题,进行简单选题说明并进行适当拓展延伸。
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新人教PEP版四年级上册英语 Unit 1 Part A2 教学课件
5. put up the picture
A. 打开灯
B. 张贴图画 C. 开门
D. 关窗户 E. 擦黑板
第二十页,共二十二页。
Summary
classroom
light
window
picture
blackboard door
— What’s in the classroom?
We have a new classroom
What’s in your new classroom?
Four walls and a floor, Pictures
and windows, and a yellow
door !
点击此处,听原文
第二页,共二十二页。
课前导入
Review Where is the …? It’s in/on/under/near …
短语: clean the blackboard 擦黑板
例句: I clean the blackboard everyday.
我每天擦黑板。
第五页,共二十二页。
单词卡
短语:
window/ˈwɪndəʊ/
(名词) 窗户
open the window 开窗户
close the window 关窗户
例句: This is a window.这是一扇窗户。
( B)
4. I
A.
can see many
desk and chairs
. B. desks and chairs
C. desks and chair
第十九页,共二十二页。
课堂练习
二、把下列英语与相对应的汉语连线。
新概念2册第一课讲解ppt课件
经营者提供商品或者服务有欺诈行为 的,应 当按照 消费者 的要求 增加赔 偿其受 到的损 失,增 加赔偿 的金额 为消费 者购买 商品的 价款或 接受服 务的费 用
Questions
• Where did the writer go last week? • Why didn’t he enjoy the play? • What did the young man say to the writer?
e.g. The play was very interesting
e.g. Last week I went to the theatre
• 人称代词/名词 + was/were + doing+其他 e.g. A young man and a young woman were
sitting behind me e.g. They were talking loudly.
经营者提供商品或者服务有欺诈行为 的,应 当按照 消费者 的要求 增加赔 偿其受 到的损 失,增 加赔偿 的金额 为消费 者购买 商品的 价款或 接受服 务的费 用
经营者提供商品或者服务有欺诈行为 的,应 当按照 消费者 的要求 增加赔 偿其受 到的损 失,增 加赔偿 的金额 为消费 者购买 商品的 价款或 接受服 务的费 用
能跟人)
可爱卡通开学第一课PPT模板
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TEAHCING PLANING
开学第一课
< 汇报人:XXX 汇报时间:XXXX年XX月XX日 >
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新概念英语2第一课 (2).ppt
It’s none of your business,” the young
参考译文
上个星期我去戏院看戏。我的座位很好,戏很有意 思,但我却无法欣赏。一青年男子与一青年女子坐 在我的身后,大声地说着话。我非常生气,因为我 听不见演员在说什么。我回过头去怒视着那一男一 女,他们却毫不理会。最后,我忍不住了,又一次 回过头去,生气地说:“我一个字也听不见 了!”“不关你的事,”那男的毫不客气地说, “这是私人间的谈话!”
关键句型:陈述句
英文中有几种句型 :陈述句,疑问句,祈使句, 感叹句和There be句型. 陈述句用来描述,陈述事件的。简单陈述句描述 一件事情。句中只有一套主谓宾的。
其中描述的某人或某事(who,which,what)在 最前面,称为主语。
动作称为:谓语动词。
这个动作的被发生对象风趣的小故事组成,一课 一篇小文章,每节课我们共同学习一篇文章, 每节课我会分成五个部分:
▪ 一:关键词 ▪ 二:课前准备问题 ▪ 三:课文学习 ▪ 四:课文重点内容讲解 ▪ 五:拓展提高
在我们讲第一课之前,送给大家一句话: Rome is not built in one day. 罗马不是一天建成 。
7、attention n.注意 pay attention to sth pay some attention to sth给予一定的注意 some表强调,也可换为 more,close,great,enough,little,no等。 draw one's attention attract one's attention The girl draws our attention. Attention,please. 哈利波特中校长讲话。
新概念英语2第一课PPT
seat business play rudely loudly angry
2021/8/14
10
actors
talk loudly
phone sleep
theatre
pay more
2021/8/14
attention11
Theatre /’θiәtә/ n. 剧场,戏院
thing, think Movie theatre/cinema 电影院
I’m afraid Linda can’t talk to you right now, because she is_o_n_b_u_s_in_e_s_s__.
2021/8/14
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loudly adv 大声地 antonym quietly adv 安静地 loud adj/adv 大声的/大声地 quite adj 安静的 aloud adv 大声地
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bear 1. n. 熊
2. v.容忍 I can’t bear you. (bore, born) stand
2. v.出生(be born) I was born on …
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angry adj 生气的 angrily /’æŋgrili/ adv 生气地
'It's none of your business,' the young man said _________. 'This is a _________ conversation!'
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语法掌
2021/8/14
35
简单陈述句(declarative sentence) I am a teacher. You are sitting here. He knew. He gave me one gilt.
高中英语开学第一课2 PPT课件 图文
Advice on learning English
1. 相信自己能学好英语,不要轻言放弃。 2、多背诵一些好文章和好句子。 3、作业认真按时独立完成。 4. 勤做笔记,及时复习
• recite the text and read the notebook
• Let’s practice right now!
My school
My new class is a place __w_h_e_r_eI will spend the next 2 years. It is a class _w__it_h__ 36 hardworking and kind students. Besides, It is _s_u_c_h_a good class __th_a_t_I like it a lot. I hope I can make _p_r_o_g_r_e_ss__and _r_e_a_li_z_e_ my dream here.
Qualities ...is my favorite.
品质,性格特点I am a person who....
Self-introduction
Hello, everyone. I’m ______and I graduated from_________. As a 17-year-old boy/girl, I’m fond of _____. In my free time, I spend much time in_(d_o_i_n_g_s_t_h)_. In a word, I’m a person who____________.
开学第一课卡通可爱PPT模板
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l 请在此处添加详细描述文本,尽量与标题文本 语言风格相符合,语言描述尽量简洁生动。
l 请在此处添加详细描述文本,尽量与标题文本 语言风格相符合,语言描述尽量简洁生动。
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6
5 4.3
中小学开学第一课 (245)
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感谢您de观看
To strengthen the normalization of supervision and management, conscientiously implement scientific prevention and control measures, cinemas should assume the main responsibility of epidemic prevention and co学第一课内容de总结
The summary of the first lesson
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开学第一课内容de总结
The summary of the first lesson
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零三
本学期教学内容de概述
Theme education in the first lesson
小学开学第一课主题班会ppt课件模板更 (3)
LOGO HERER e p o r tP o w e rS e r v e s e开学第一课TMPLATE您的内容打在里,或者通复制您的文本后,在此框中粘。
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P/O/W/E/R/P/O/I/N/T02存在的主要问题Copy paste fonts. Choose the only option to retain text.01年度工作总结Copy paste fonts. Choose the only option to retain text.04 工作计划Copy paste fonts. Choose the only option to retain text.03 解决方案Copy paste fonts. Choose the only option to retain text.目录CONTENTSPART 01输入你的标题ResearchSuitable for all kind business and personal presentation, feel free to edit it this is yourpresentationResearchSuitable for all kindbusiness and personalpresentation, feel free toedit it this is yourpresentationResearchSuitable for all kindbusiness and personalpresentation, feel free toedit it this is yourpresentationResearchSuitable for all kindbusiness and personalpresentation, feel free toedit it this is yourpresentationResearchSuitable for all kindbusiness and personalpresentation, feel free toedit it this is yourpresentationSuitable for all categories business and personal presentation , eaque ipsa quae ab illo inventore veritatiset quasi architecto beatae.CoreSuitable for all categories businessandpersonalpresentation.Element OneSuitable for all categories businessandpersonalpresentation.Element TwoSuitable for all categories business and personalpresentation.Element ThreeSuitable for all categories business and personalpresentation.Element FourSuitable for all categories business and personal presentation , eaque quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo.Element OneSuitable for all categories business and personal presentation , eaque quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo.Suitable for all categories business and personalpresentation , eaque quae ab illo inventore veritatis et quasi architecto beatae vitae dictasunt explicabo.Element TwoElement ThreeSome Details Goes HereDuis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non provident.Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.312For every 6 emails received, we get 3 Phone calls. Suitable for all categories business and personal presentation .OptionOptionOptionFor every 6 emails received, we get 3 Phone calls. Suitable for all categories business and personal presentation.For every 6 emails received, we get 3 Phone calls. Suitable for all categories business and personal presentation.PART 02输入你的标题9For every 6 emails received, we get 3 Phone calls. Suitable for all categories business and personal presentation .Option AFor every 6 emails received, we get 3 Phone calls. Suitable for all categories business and personal presentation .Option CFor every 6 emails received, we get 3 Phone calls. Suitable for all categories business and personal presentation .Option BFor every 6 emails received, we get 3 Phone calls. Suitable for all categories business and personal presentation .Option D标题文字标题文字SWOTStrenghts Opportunity WeaknessThreatsThere are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, or randomized words which don't look even slightly believable.There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, or randomized words which don't look even slightly believable.There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, or randomized words which don't look even slightly believable.There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, or randomized words which don't look even slightly believable.About SWOTLorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla venenatis metus metus, ut congue miiaculis vel. Vestibulum in enim urna. Cras quis venenatis turpis, nonsodales velit. Donec condimentum mi mi, nec lobortis metus porta vulputate. Etiam id lobortis ipsum. Aliquam erat volutpatWeaknessesThreatsOpportunityStrenghtsThere are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form.There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form.There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form.There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form.Positive NegativeInternal FactorsExternal Factors标题文字12Visible CostSuitable for all category, Lorem Ipsum is not simply random text.Visible CostSuitable for all category, Lorem Ipsum isnot simply random text.Visible CostSuitable for all category, Lorem Ipsum isnot simply random text.Suitable for all category, Lorem Ipsum isnot simply random text.标题文字DescriptionSuitable for all categories business and personal presentationDescription Suitable for all categories business and personalpresentation DescriptionSuitable for all categories business and personal presentationDescriptionSuitable for all categoriesbusiness and personalpresentation 标题文字标题文字14 ArrayDescriptionContrary to It has roots in a piece of classical Latinliterature from 45 BC. Contrary to popular belief It hasroots in a piece of literature from 45 BC.Content 1Suitable for all categoriesbusiness and personalpresentationContent 2Suitable for all categoriesbusiness and personalpresentationContent 3Suitable for all categoriesbusiness and personalpresentationPART 03输入你的标题DescriptionSuitable for all categoriesbusiness and personalpresentationDescriptionSuitable for all categoriesbusiness and personalpresentationDescriptionSuitable for all categoriesbusiness and personalpresentationDescriptionSuitable for all categoriesbusiness and personalpresentationSuitable for all any kind categories business and personal presentation.Suitable for all any kindcategories business andpersonal presentation.Suitable for all any kindcategories business andpersonal presentation.Suitable for all any kindcategories business andpersonal presentation.Suitable for all any kindcategories business andpersonal presentation.Suitable for all any kindcategories business andpersonal presentation.Suitable for all categories business and personalpresentation, eaque ipsa inventore veritatis.StrengthSuitable for all categories business and personalpresentation, eaque ipsa inventoreveritatis.WeaknessSuitable for all categories business and personal presentation, eaque ipsa inventoreveritatis.OpportunitySuitable for all categories business and personal presentation, eaque ipsa inventoreveritatis.Threat标题文字PART 04输入你的标题201 2 3 4For every 6 emails received, we get 3Phone calls. Suitable for all categoriesbusiness and personal presentation.For every 6 emails received, we get 3Phone calls. Suitable for all categoriesbusiness and personal presentation.For every 6 emails received, we get 3Phone calls. Suitable for all categoriesbusiness and personal presentation.For every 6 emails received, we get 3Phone calls. Suitable for all categoriesbusiness and personal presentation.Some Details Goes HereDuis aute irure dolor in reprehenderit involuptate velit esse cillum dolore eu fugiatnulla pariatur. Excepteur sint occaecatcupidatat non provident.Excepteur sint occaecat cupidatat nonproident, sunt in culpa qui officia deseruntmollit anim id est laborum.标题文字21IdeaSuitable for all kindbusiness and personalpresentation, feel free toedit it this is yourpresentationResearchSuitable for all kindbusiness and personalpresentation, feel free toedit it this is yourpresentationBrainstromingSuitable for all kindbusiness and personalpresentation, feel free toedit it this is yourpresentationSearchSuitable for all kindbusiness and personalpresentation, feel free toedit it this is yourpresentationStrategySuitable for all kindbusiness and personalpresentation, feel free toedit it this is yourpresentation标题文字CoffeeMoodCreativitySuitable for all categoriesbusiness and personalpresentation, eaque ipsa inventoreveritatis.MoodSuitable for all categoriesbusiness and personalpresentation, eaque ipsa inventoreveritatis.CoffeeSuitable for all categories business and personalpresentation, eaque ipsa inventore veritatis.Creativity标题文字23Politics•Sed non ipsum in lectus convallis rutrum eget •tincidunt odio pulvinar ex hendrerit•Phasellus nec urna eget risus mattis vulputate.Economical•Sed non ipsum in lectus convallis rutrum eget •tincidunt odio pulvinar ex hendrerit•Phasellus nec urna eget risus mattis vulputate.SocialLorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla venenatis metus metus, ut congue mi iaculis vel. Vestibulum in enim urna. Cras quis venenatis turpis.TechnicalInvoices are abandoned before the transaction its completed. Suitable for all categories For every 6 emails received.标题文字THANK YOU 感谢聆听。
新概念第二册第一课词汇课件lesson1Aprivateconversation-Part2
I got very angry! I looked at them angrily!
It’s none of your business!
Answer the questions.
1 Where did I go?
1
2
2 Did I enjoy it?
5
3 4
Who were sitting behind
5
What did the young man say to the writer?
Read and answer.
1
Where did the writer go last
week?
Last week I went to the theatre. I had a very good seat. The play was very interesting. I did not enjoy it. A young man and a young woman were sitting behind me. They were talking loudly. I got very angry. I could not hear the actors. I turned round. I looked at the man and the woman angrily. They did not pay any attention. In the end, I could not bear it. I turned round again. ‘I can't hear a word!’ I said angrily. ‘It's none of your business, ’ the young man said rudely. ‘This is a private conversation!’
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A drawback of this method is the long time the process 缺点,弊端 of dehydration takes to perform, the water of crystallization being released extremely slowly. In both cases it is impossible quantitatively to control the quantitatively 定量地; qualitatively 定性地
第三讲
PATENT SPECIFICATION
851,690
专利说明书
NO DRAWINGS
Date of Application and filing Complete Specification:
June 26, 1959 No. 22094/59. Application made in Germany on Aug. 21, 1958. Complete Specification Published: Oct. 19, 1960.
degree of dehydration attained in the course of the process. 脱水 n. 过程,进程
这种方法的缺点是所进行的脱水过程时间长,结晶水释放非常缓慢。 两种情况下都不可能在工艺过程中定量地控制脱水的程度。
It has now been found that the water of crystallization can be withdrawn from the barium hydroxide hydrate 提取,抽出 either by heating the same in an organic solvent, the water being azeotropically distilled off with the solvent, 共沸蒸馏 or by removing it from the barium hydroxide hydrate merely by digestion in a suitable solvent at elevated 浸提 升温 temperature.
现在发现可以通过两种方法把氢氧化钡水合物中的结晶水除去:将其在 某一有机溶剂中加热,水可以通过与溶剂一起共沸蒸馏而除去;或在升温 条件下用合适的溶剂将水从氢氧化钡水合物中浸提出去。
It is, however, necessary to select a solvent which is chemically inert to barium hydroxide, 化学惰性的 but the selected solvent may be a solvent mixture.
ห้องสมุดไป่ตู้
延长的
process is accompanied by troublesome spattering and incrustation phenomena. 飞溅
结壳,积垢
八水合氢氧化钡共熔融于其结晶水中。(八水合氢氧化钡与其结晶 水共熔融。) 除非在 300℃以上的温度下长时间的加热,否则这些水无法从溶液中除去。 (这些水只有通过在300℃以上的温度下长时间的加热才能从溶液中除去。) 这个过程伴随着令人讨厌的飞溅和结壳现象。
对于八水合氢氧化钡而言,所选择的溶剂必须具有与同成分熔点即78℃ 相近的沸点和低于此熔点的共沸点。
The process of dehydration can be discontinued when a desired quantity of water has been removed so that barium hydroxides in any desired stage of hydration can thus be obtained.
液相时以任意比例都不能和水互溶的有机溶剂在进行共沸蒸馏时是特别 有用的,因此使用装有溢流口的接收器可以连续并完全地将水分离出去。
It is then possible to dehydrate relatively large quantities of barium hydroxide hydrate with the aid of a constant quantity of solvent.
因而使用一定量的溶剂就可能使相当大量的氢氧化钡水合物脱水。
In the case of barium hydroxide octahydrate a solvent must be selected which has a boiling point 沸点 near the congruent melting point of 78℃,and an 共熔点,同成分熔点 azeotropic boiling point which below this melting point. 共沸点 熔点
脱水 钡 氢氧化物 水合物
氢氧化钡水合物的脱水方法
We, Kali-CHEMIE AKTIENGESELLSCHAFT, of Hans
苛性钾 化学 股份公司(德语) – Böckler – Allee 20, Hannover, Germany, a body corporate organized under the laws of 法人团体 Germany, do hereby declare the invention, for 特此 which we pray that a patent may be granted to us, 请求 授予,准予 and the method by which it is to be performed, to be particularly described in and by the following 详细地 我们,——,德国法律下组织的一个法人团体,特此 我们,————,德国法律下组织的一个法人团体, 宣布一项我们申请并希望授予专利的发明以及在下列 statement: 特此宣布一项发明以及本发明的实施方法,希望能授 地址 公司名
Index at Acceptance: -------Class 1(3), Ain46A.
International Classification: ----C01f.
国际(专利)分类号
COMPLETE SPECIFICATION
Method of Dehydrating Barium Hydroxide Hydrate
当一定量的水被除去时,脱水过程可以随时中止,因此可以获得所 希望的结晶水数目的氢氧化钡。
For lower hydrates of barium hydroxide the selection of a suitable solvent is not determined in the above manner, and the boiling point of pure solvent and of the azeotropic mixture should be above and as close as possible respectively to the boiling point of water. 分别地
对于结晶水数目较少的氢氧化钡,合适溶剂的选择与上述方式不同:纯 溶剂和共沸混合物的沸点应分别高于和尽可能接近水的沸点。
In an alternative procedure of heating the barium hydroxide hydrates with an organic solvent, the water of crystallization is removed by digestion in an anhydrous organic solvent or solvent mixture which is chemically inert with respect to barium hydroxide but miscible in the liquid phase with water in any proportion, the process being performed at a temperature above the congruent melting point of the barium hydroxide octahydrate and below the boiling point of the solvent or solvent mixture.
结晶水
mono- and the octahydrate are also industrially used.
八水合、一水合氢氧化钡和无水氢氧化钡都是明确界定的化合物。
结晶水含量在一到八之间的产物(氢氧化钡)也是工业上常用的。
Barium hydroxide octahydrate congruently melts in 共熔融 its own water of crystallization. The water cannot be removed from this solution otherwise than by 除了···之外 ··· prolonged heating at temperatures up to 300℃. The
的陈述中将被详细描述的该发明的实施方法。 予我们专利。相关的详细描述的声明如下:
涉及
This invention relates to a method of dehydrating barium hydroxide hydrates.