A high temperature stable palladium complex in an acetylene atmosphere and its application
A composite, palladium compound technology, applied in chemical/physical process, physical/chemical process catalyst, catalyst activation/preparation, etc., can solve the loss of active components, decrease in catalyst activity, and is not suitable for improving the loss of supported palladium catalyst. problems such as living, to achieve the effect of simple preparation and convenient operation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0045] The particle size of the activated carbon is 40 mesh, the ash content is 5.0wt%, and the specific surface area is 900m 2 / g, pore volume 1.0mL / g, treated with 300ml of hydrochloric acid with a concentration of 10wt% at 20°C for 3h, and then dried at 110°C for 12h to obtain the required carrier.
[0046] Put 50ml of K 2 PdCl 4 Solution (where Pd content is 0.001g / ml) and 10ml Na 2 The S solution (wherein the S content is 0.00015g / ml) is evenly mixed, an appropriate amount of deionized water is added to make the volume to 100ml, and the solution is added dropwise to 100g of spherical activated carbon carrier under the action of ultrasonic wave at 30°C. Impregnated for 5 hours under ultrasonic action, then the catalyst was vacuum dried at 110°C for 5 hours. The catalyst was tested to be PdS 0.1 Cl 1.8 / AC, where Pd loading (relative to carrier mass) is 0.05wt%, and S element loading (relative to carrier mass) is 0.0015wt%.
[0047] 2g of this catalyst is used in the hydrochlorin...
Embodiment 2
[0049] γ-Al 2 O 3 The particle size is 20 mesh, the specific surface area is 200m 2 / g, pore volume 0.6mL / g. Add 20ml of Na 2 PdCl 4 The solution (with Pd content of 0.05g / ml) and 10ml of KHS solution (with S content of 0.03g / ml) mixed uniformly, add an appropriate amount of deionized water to make the volume up to 60ml, and add dropwise under the action of 60℃ and ultrasonic To 100g columnar γ-Al 2 O 3 On the carrier, the catalyst was vacuum dried at 90°C for 10 hours. The catalyst was tested to be PdS 1.9 Cl 0.1 / γ-Al 2 O 3 , Wherein Pd loading (relative to carrier mass) is 1wt%, and S element loading (relative to carrier mass) is 0.3wt%.
[0050] 2g of this catalyst is used in the acetylene hydrochlorination reaction in a fixed bed reactor. The reaction conditions are: temperature 180℃, pressure 0.2MPa, n(HCl) / n(C 2 H 2 )=1.2 / 1, acetylene space velocity 60h -1 . In the initial stage of the reaction, the acetylene conversion rate was 39.4%, and the vinyl chloride selectivity wa...
Embodiment 3
[0052] SiO 2 The particle size is 80 mesh, the specific surface area is 100m 2 / g, pore volume 0.6mL / g. Add 50ml of (NH 4 ) 2 PdCl 4 Solution (where Pd content is 0.008g / ml) and 10ml (NH 4 ) 2 S 2 O 3 The solution (with S content of 0.01g / ml) is mixed uniformly, and added dropwise to 100g columnar SiO under the action of 50℃ and ultrasonic 2 On the carrier, the catalyst was vacuum dried at 80°C for 15 hours. The catalyst was tested to be PdS 0.8 Cl 0.4 / SiO 2 , Wherein Pd loading (relative to carrier mass) is 0.4wt%, and S element loading (relative to carrier mass) is 0.1wt%.
[0053] 2g of this catalyst is used in the hydrochlorination of acetylene in a fixed bed reactor. The reaction conditions are: temperature 150℃, pressure 0.3MPa, n(HCl) / n(C 2 H 2 ) = 1.05 / 1, acetylene space velocity 10h -1 . In the initial stage of the reaction, the acetylene conversion rate was 99.9%, and the vinyl chloride selectivity was 99.9%; after the reaction for 2000 hours, the acetylene conversion r...
PUM
Property | Measurement | Unit |
---|---|---|
specific surface area | aaaaa | aaaaa |
concentration | aaaaa | aaaaa |
concentration | 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