Isopropanol-methyl isobutyrate azeotrope distillation separation method by using mixed solvent as the extraction solvent
A technology of methyl isobutyrate and mixed solvents, which is applied in the rectification and separation of isopropanol-methyl isobutyrate azeotrope, and in the field of special rectification, which can solve high investment costs, difficulties in industrial application, and high energy consumption costs and other issues, to achieve the effect of reducing production cost and energy consumption, improving product purity and extraction efficiency, and reducing energy consumption for separation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0021] A method for rectifying and separating isopropanol-methyl isobutyrate azeotrope based on a mixed solvent as an extractant. The extractant is selected from ethylene glycol (80wt%) and N-ethylpyridine tetrafluoroborate ([Epy][BF 4 ]) (20wt%), the dosage is 4000kg / h; the raw material processing capacity is 1000kg / h, and the raw material composition is a near azeotropic composition of isopropanol (63wt%) and methyl isobutyrate (37wt%). The number of trays in the extractive distillation column is 60, the feeding position of the extractant is on the 5th tray, and the feeding position of the raw material is on the 45th tray. The reflux ratio is set at 2, the extraction rate at the top of the tower is 370kg / h, and the purity of methyl isobutyrate obtained is 99.5%. The number of trays in the extraction agent recovery tower is 50, the feed position of stream ② is the 30th tray, the reflux ratio is 4, the extraction rate at the top of the tower is 630kg / h, and the purity of isop...
Embodiment 2
[0023] The extractant is selected from ethylene glycol (90wt%) and N-ethylpyridine hexafluorophosphate ([Epy][PF 6 ]) (10wt%), the dosage is 5000kg / h, the number of plates in the extractive distillation column is 65, the reflux ratio is 3, and other conditions are the same as in Example 1. The purity of the obtained methyl isobutyrate and isopropanol products are all above 99.5%.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com