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氟氯交换法分离法

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qq-001 发表于 2006-3-16 13:53:43 | 显示全部楼层 |阅读模式
分离共沸物的一个办法.
反应的原理:
   PhSiF3+SiCl---------PhSiCl3+SiF4
    反应的催化物:R3N
反应在室温下进行.注意温度控制不超过75度.压力在反应后期需有真空.真空度不要太高.
      这个方法还可以用来分离一甲和二甲的混合物.
           :cool:;)
各位欢迎发表意见.

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 楼主| qq-001 发表于 2006-3-16 14:08:27 | 显示全部楼层
以后会慢慢发点东西上来,供应大家参考!

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ashuai 发表于 2006-3-16 18:27:31 | 显示全部楼层
受教了
请问一下这个工艺的成本如何呢?

一般对共沸物的分离,是采用不完全水解或醇解的方法
原理在于两种物质水解和醇解的速度不同,加入计量比的水或者醇,再平衡一段时间,可以较完全的将其中一种反应掉

比如M3SiCl-SiCl4共沸组分的分离,就是用甲醇或乙醇进行醇解,SiCl4可以完全转化为Si(OR)4,沸点升高,可以很容易的分离
对于一甲和二甲的混合物也可以采用类似手段分离

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qq-002 发表于 2006-3-24 08:21:37 | 显示全部楼层

帅哥,帮忙翻译一下

1. Analyze current and future anticipated operational procedures and transactional data to identify and pre-define potential projects for sponsorship submission.
2. Work with project sponsors to define scope and charter for proposed projects so that Voice of current as well as future customer’s are captured and translated into project deliverables. Maintain good documentation and communication to ensure adequate project evaluation can be done and the champions can set priorities.
3. Ensure adequate time-lines of deliverables are determined and managed. Identify and remove bottlenecks and barriers to project progress. Take responsibility for achieving financial and time-line targets.
4. Support the learning and development program for greenbelts and others on the project team to institutionalize Six Sigma.
5. Define, lead and facilitate operational Six-sigma projects in support of 3rd Pillar Siloxane JV project to ensure timely start-up and reliable future operation. Focusing on overall operational aspects of the future integrated site inclusive of safety, security, logistics, day-to-day operational effectiveness as well as IP protection.
6. Building on current operational set-ups elsewhere but modifying these to anticipate China’s and the new site’s special needs. Incumbent would need to interact with operational teams globally as well as the 3rd Pillar design team. The incumbent shall stimulate management by exploring new ways of doing things and challenging the existing paradigms. It’s also the incumbent’s role to actively share “ best practices “ and learning to cultivate a net work Six-Sigma individuals within and outside the company.
7. Eventually become part of the future Siloxane site Operational team to continue with on-going improvement projects or be responsible for some of the key operational activities defined by prior six-sigma projects.

Requirements:
1. Preferably a degree in some kind of discipline
2. Some knowledge of Six-Sigma
Black Belt certification within DCC or from another accredited organization will be an advantage but not a must
3. Good Planning and organizing skills
4. Good Interpersonal, Team building and Team leadership skills
5. Good assertiveness and a Can-do attitude
6. Able to think out-of-the-box and adapt to new environment
7. Able to follow a disciplined methodology
8. Fluent in English and preferably also some knowledge of Mandarin
10. Some experience in chemical plant operation will be a plus

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