Is it necessary to add sodium hydroxide during the methanol distillation process? Can potassium hydroxide be used instead?

2015-11-09View Original

Thread Content

Is it necessary to add sodium hydroxide during the methanol distillation process? Can potassium hydroxide be used instead?

Reply #22015-11-16

First, it is necessary to understand the purpose of adding alkali: one is to neutralize the acidic substances in crude methanol, mainly dissolved CO2, in order to prevent equipment corrosion. Secondly, it decomposes the amine compounds in crude methanol, which are then released through the pre-distillation tower. It is said that potassium hydroxide and sodium hydroxide have the same functions and effects, but you need to consider cost.

Reply #32015-11-23

The same, but how much is sodium hydroxide, and how much is potassium hydroxide?

Reply #42015-12-21

Cost? Just calculate it and you’ll know

Reply #52015-12-23

If you have money, lithium hydroxide can be used

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.

Quick Links