Method and system for feeding acetone cyanohydrin during preparation of methyl methacrylate
A technology of methyl methacrylate and acetone cyanohydrin, which is applied in the field of feeding methods and systems in the preparation of methyl methacrylate, and can solve the problems of overheating of the droplet surface, increased consumption of acetone cyanohydrin, decomposition of acetone cyanohydrin, etc. problem, to achieve the effect of reducing the degree of decomposition, increasing the conversion rate and reducing consumption
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0035] Concentrated sulfuric acid is continuously added to the amide circulation loop through the sulfuric acid mixer M-2. After that, acetone cyanohydrin was injected into two streams at two locations by spraying. One of acetone cyanohydrin was continuously added to the amide circulation loop through the first acetone cyanohydrin mixer M-1 located at the first location. The acetone cyanohydrin is continuously injected into the amide circulation loop through the second acetone cyanohydrin injector J-1. The first acetone cyanohydrin mixer M-1 is arranged on the pipeline between the outlet of the amide cooler E1 and the inlet of the gas separator V1. The weight ratio of the acetone cyanohydrin passing through the first acetone cyanohydrin mixer M-1 and the acetone cyanohydrin injected through the second acetone cyanohydrin injector J-1 is 3:1. The molar ratio of the concentrated sulfuric acid injected into the amide circuit to the total amount of acetone cyanohydrin is 1.6:1. T...
Embodiment 2
[0038] Concentrated sulfuric acid is continuously added to the amide circulation loop through the sulfuric acid mixer M-2. After that, acetone cyanohydrin was injected into two streams at two locations by spraying. One acetone cyanohydrin was continuously added to the amide circulation loop through the first acetone cyanohydrin mixer M-1 located at the first location. The acetone cyanohydrin is continuously injected into the amide circulation loop through the second acetone cyanohydrin injector J-1. The first acetone cyanohydrin mixer M-1 is arranged on the pipeline between the outlet of the amide cooler and the inlet of the gas separator. The weight ratio of the acetone cyanohydrin passing through the first acetone cyanohydrin mixer M-1 and the acetone cyanohydrin injected through the second acetone cyanohydrin injector J-1 is 1:1. The molar ratio of the concentrated sulfuric acid injected into the amide circuit to the total amount of acetone cyanohydrin is 1.5:1. The operat...
Embodiment 3
[0041] Concentrated sulfuric acid is continuously added to the amide circulation loop through the sulfuric acid mixer M-2. After that, acetone cyanohydrin was injected into two streams at two locations by spraying. One acetone cyanohydrin was continuously added to the amide circulation loop through the first acetone cyanohydrin mixer M-1 located at the first location. The acetone cyanohydrin is continuously injected into the amide circulation loop through the second acetone cyanohydrin injector J-1. The first acetone cyanohydrin mixer M-1 is arranged on the pipeline between the outlet of the amide cooler E-1 and the inlet of the gas separator V1. The weight ratio of the acetone cyanohydrin passing through the first acetone cyanohydrin mixer M-1 and the acetone cyanohydrin injected through the second acetone cyanohydrin injector J1 is 2:1. The molar ratio of the concentrated sulfuric acid injected into the amide circuit to the total amount of acetone cyanohydrin is 1.5:1. The ...
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