Catalyst for synthesizing diisooctyl phthalate plasticizer and preparation method and application of catalyst
A technology of diisooctyl phthalate and catalyst is applied to the catalyst for synthesizing diisooctyl phthalate plasticizer and the field of preparation thereof, and can solve the problems of high separation difficulty, low esterification rate, cumbersomeness and the like , to reduce the reaction temperature, improve the esterification rate, and achieve the effect of light color
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0024] Example 1
[0025] Dissolve 11.7g of cesium nitrate (0.06mol) and 6.0g of copper tungstic acid (0.01mol) in 50mL of deionized water, stir and mix evenly, pour into a hydrothermal reactor, react at 100°C for 12h, and then combine the reaction product After cooling to room temperature, filtering, and drying the obtained solid, a cesium copper tungstate catalyst was obtained. The XRF characterization results are shown in Table 1. Through XRF characterization, it is determined that n=6 in the molecular formula, that is, the catalyst is Cs 6 CuW 2 O 10 .
[0026] Add 13.0g isooctyl alcohol and 7.4g phthalic anhydride (molar ratio 2:1) into a four-neck flask with reflux condenser, and then add 0.5g (2.5%) of Cs 6 CuW 2 O 10 The catalyst was protected by nitrogen gas with a flow rate of 5mL / min, heated to 100°C, stirred for 4h, then stopped heating and stirring, distilled under reduced pressure to remove the remaining isooctyl alcohol, and filtered to remove the catalyst to obtain ...
Example Embodiment
[0027] Example 2
[0028] Dissolve 10.7g of cesium nitrate (0.055mol) and 6.0g of copper tungstic acid (0.01mol) in 60mL of deionized water, stir and mix evenly, pour into a hydrothermal reactor, react at 120℃ for 24h, and then combine the reaction product After cooling to room temperature, filtering, and drying the obtained solid, a cesium copper tungstate catalyst was obtained. The XRF characterization results are shown in Table 1. It is determined by XRF characterization that n=5.5 in the molecular formula, that is, the catalyst is H 0.5 Cs 5.5 CuW 2 O 10 .
[0029] Add 22.8g of isooctyl alcohol and 7.4g of phthalic anhydride (molar ratio 3.5:1) into a four-necked flask with reflux condenser, and then add 0.3g (1%) of H 0.5 Cs 5.5 CuW 2 O 10 The catalyst is protected by nitrogen with a flow rate of 10mL / min, heated to 130°C, and after stirring for 6 hours, the heating and stirring are stopped, the remaining isooctyl alcohol is removed by vacuum distillation, and the catalyst is ...
Example Embodiment
[0030] Example 3
[0031] Dissolve 1.0g of cesium nitrate (0.005mol) and 6.0g of copper tungstic acid (0.01mol) in 70mL of deionized water, stir and mix evenly, pour into a hydrothermal reactor, react at 120℃ for 24h, and then combine the reaction product After cooling to room temperature, filtering, and drying the obtained solid, a cesium copper tungstate catalyst was obtained. The XRF characterization results are shown in Table 1. It is determined by XRF characterization that n=0.5 in the molecular formula, that is, the catalyst is H 5.5 Cs 0.5 CuW 2 O 10 .
[0032] Add 15.6g of isooctyl alcohol and 7.4g of phthalic anhydride (molar ratio 2.4:1) into a four-necked flask with reflux condenser, and then add 0.4g of H 5.5 Cs 0.5 CuW 2 O 10 The catalyst was protected by nitrogen gas with a flow rate of 8mL / min, heated to 130°C, stirred for 4h, then stopped heating and stirring, distilled under reduced pressure to remove the remaining isooctyl alcohol, and filtered to remove the catal...
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap