HCBBS Forum (Português)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

["

2020-07-06View Original

Thread Content

user
Reply #22020-07-06
Translate the following 1 texts from chinese_simplified to portuguese. Return ONLY a valid JSON array of translated strings in the same order. No markdown formatting, no explanations.
Reply #32020-07-06
请教一个共沸的问题
Reply #42020-07-07
生产环氧树脂过程中,需要脱去环氧氯丙烷(沸点 118℃)和水,工艺上是负压升温到 80℃脱去水和环氧氯丙烷,然后冷凝器和分相器分离。但是水和环氧氯丙烷的共沸物沸点是88℃,为什么还要升温到那么高温度浪费能源,理论上88℃不就可以了吗
Reply #52020-07-07
三. 共沸是有一定组成的,脱完共沸物后,还要继续脱环氧氯丙烷啊
Reply #62020-07-07
共沸物不是液相与蒸出去的气相组成比例完全相同吗?按道理应该是同时蒸出去吧?是不是我哪里理解不对,比如环氧氯丙烷和水占比是85%%,那他们共沸蒸出的蒸汽也是85%和15%,那他们应该同时蒸完吧
Reply #72020-07-07
哦哦,为何不试试,看其结果如何:)
Reply #82020-07-07
难道是液相组成正好等于共沸组成?一般不会这么凑巧吧!比如初始液相中环氧氯丙烷和水占比是85%;而它们共沸组成是75%和35%,且共沸组成是体系的固有特性,不随初始液相组成而改变。
Reply #92020-07-09
尳算是到了共沸温度,气化也是要吸热的,88℃气化速度一定很慢,实际运行都需要再升温来提升速度 原物料组成里面水含量应该是偏少的,水蒸发掉了共沸组成破坏,留下重组份沸点升高,需要更高的温度
Reply #102020-07-10
首先,环氧氯丙烷废水中环氧氯丙烷是远远多于的,对于共沸物而言,组分是一定的,因此,在环氧氯丙烷废水精馏的过程中,会有环氧氯丙烷共沸相和环氧丙烷相,环氧丙烷的沸点是高于118℃,就要求精馏塔的操作温度要高一些。
Reply #112020-07-13
学*,最近也遇到共沸问题
Reply #122020-07-14
看水和环氧氯丙烷的组分含量为多少?

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.