Device and process for producing acetaminophen
A technology of acetaminophen and bulk packing, applied in the field of chemical engineering, can solve the problems of many by-products, product oxidation, long reaction time, etc., and achieve the effect of improving reaction efficiency and reducing by-products
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0037] Example 1
[0038] Such as figure 1 As shown, a reactive distillation unit for the production of paracetamol in an enterprise includes split reaction section R101 and rectification section T101, as well as condenser E102 and heat exchanger E101,
[0039] The reaction section R101 is hermetically connected below the rectification section T101,
[0040] The rectification section T101 is provided with trays, and random packing is arranged under the trays or the rectification packing. The top of the rectification section T101 is provided with a production outlet and a reflux port, and the production outlet passes through the The condenser E102 is respectively connected to the reflux outlet and the condensation outlet,
[0041] The reaction section R101 is an enhanced reactor, and the reaction section R101 is provided with a raw material inlet, a circulation outlet, and a circulation inlet. The circulation outlet is connected to the inlet of the circulation pump, and the outlet of ...
Example Embodiment
[0052] Example 2
[0053] This embodiment 2 uses the same reactive distillation device as the embodiment 1. The only difference is that the rectification section is filled with condensed packing; when calculating the distance between the reaction section and the rectification section, the passing time is 0.5 seconds; the diameter of the bottom layer of the random packing is 15 mm, and the middle The diameter of the layered ceramic balls is 7 mm, and the diameter of the top layer is 3 mm; the distance between the bulk filler and the condensed filler is 20 cm.
[0054] During production, the reaction raw materials p-aminophenol and acetic acid are first heated, stirred, dissolved and mixed in the stirred mixing tank V101, and then enter the micro-interface strengthening reactor R101 through the pipeline for reaction, and the reaction materials are circulated through the circulation inlet under the action of the circulating pump , The material heated by the heat exchanger E101 is vap...
Example Embodiment
[0055] Example 3
[0056] In Example 3, the same reactive distillation device as in Example 1 was used. The only difference is that when calculating the distance between the reaction section and the rectification section, the passing time is 0.8 seconds; the diameter of the bottom layer of the random packing is 20 mm, and the diameter of the middle layer is 8 mm. The diameter of the top ceramic ball is 4 mm; the distance between the bulk packing and the condensing packing is 30 cm.
[0057] During production, the reaction raw materials p-aminophenol and acetic acid are first heated, stirred, dissolved and mixed in the stirred mixing tank V101, and then enter the micro-interface strengthening reactor R101 through the pipeline for reaction, and the reaction materials are circulated through the circulation inlet under the action of the circulating pump , The material heated by the heat exchanger E101 is vaporized and then returned to the reactive distillation unit, where the amount o...
PUM
Property | Measurement | Unit |
---|---|---|
Diameter | aaaaa | aaaaa |
Diameter | aaaaa | aaaaa |
Diameter | 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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap