A continuous rectification separation method and equipment for a propylene carbonate crude product
A technology for propylene carbonate and rectification separation, which is applied in separation methods, distillation separation, chemical instruments and methods, etc., can solve the problems of difficulty in meeting battery-level purity requirements and high operating costs, and achieves improved mass transfer and separation efficiency. Liquid contact space, the effect of improving product quality
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0034] Embodiment 1: with reference to attached figure 2 , the continuous rectification separation method of a kind of propylene carbonate crude product that the present invention mentions, its technical scheme is to comprise the following steps:
[0035] Step 1: The operating temperature is 90-130°C, and the crude propylene carbonate product with a product purity of 98% enters the middle part of the propylene carbonate rectification tower 1, and the inner cavity of the propylene carbonate rectification tower 1 is provided with a reflux distributor from top to bottom 13. Multiple groups of diamond-shaped reaction promotion units 15, feed distributor 14 and multiple groups of liquid stripping filter discs 16, the outside of the propylene carbonate rectifying tower 1 are respectively connected to the rectifying tower top condenser 2 and the A discharge line condenser 5. B discharge line condenser 7 and rectification column kettle reboiler 9;
[0036] Step 2: After sufficient g...
Embodiment 2
[0046] Embodiment 2: the continuous rectification separation method of a kind of propylene carbonate crude product that the present invention mentions, its technical scheme is to comprise the following steps:
[0047] Step 1: the operating temperature is 90°C, and the propylene carbonate crude product with a product purity of 98% enters the middle part of the propylene carbonate rectification tower 1, and the inner cavity of the propylene carbonate rectification tower 1 is provided with a reflux distributor 13, Multiple groups of diamond-shaped reaction promotion units 15, feed distributors 14 and multiple groups of liquid stripping filter discs 16, the outside of the propylene carbonate rectifying tower 1 are respectively connected to the rectifying tower top condenser 2, the A discharge line condenser 5, B discharge line condenser 7 and rectifying column kettle reboiler 9;
[0048] Step 2: After sufficient gas-liquid exchange in the diamond-shaped reaction promotion unit 15 ...
Embodiment 3
[0052] Embodiment 3: the continuous rectification separation method of a kind of propylene carbonate crude product that the present invention mentions, its technical scheme is to comprise the following steps:
[0053] Step 1: the operating temperature is 130°C, and the propylene carbonate crude product with a product purity of 98% enters the middle part of the propylene carbonate rectification tower 1, and the inner cavity of the propylene carbonate rectification tower 1 is provided with a reflux distributor 13, Multiple groups of diamond-shaped reaction promotion units 15, feed distributors 14 and multiple groups of liquid stripping filter discs 16, the outside of the propylene carbonate rectifying tower 1 are respectively connected to the rectifying tower top condenser 2, the A discharge line condenser 5, B discharge line condenser 7 and rectifying column kettle reboiler 9;
[0054] Step 2: After sufficient gas-liquid exchange in the diamond-shaped reaction promotion unit 15...
PUM
Property | Measurement | Unit |
---|---|---|
height | aaaaa | aaaaa |
porosity | aaaaa | aaaaa |
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