Separation of methylamine mixed gas and method for co-production of formamide compounds
A technology of mixed gas and formamide, which is applied in the preparation of organic compounds, chemical instruments and methods, purification/separation of amino compounds, etc., can solve problems such as large energy consumption, achieve low energy consumption, simple preparation, and reduced energy consumption Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0019] Weigh 20g MoO 3 impregnated in 48.6mmol·L -1 hydrated ruthenium trichloride solution, stirred at room temperature for 20h, dried at 130°C, and reduced at 350°C for 3h in a hydrogen atmosphere to obtain 2wt% Ru / MoO 3 , forming a 14-25 mesh catalyst and filling it into the reaction tube, filling the 15mm bed, and under the pressure of 3.0MPa, the flow rate of the mixed gas of methylamine is 10mL·min -1 , wherein monomethylamine: dimethylamine: trimethylamine=1:2:1 (volume ratio), the flow rate of raw material CO is 10mL min -1 . Reaction at 200°C, sampling every 2 hours, the concentration of trimethylamine increased to 73%; chromatographic analysis showed that the total selectivity of formamide compounds was 90%.
Embodiment 2
[0021] Weigh 20g CuO and impregnate in 48.6mmol L -1 in a solution of ruthenium trichloride hydrate, stirred at room temperature for 20 hours, dried at 130°C, and reduced for 3 hours at 350°C in a hydrogen atmosphere to obtain 2wt% Ru / CuO, and filled the reaction tube with a 14-25 mesh catalyst by forming a sieve. 15mm bed layer, after filling the catalyst in the reaction tube, place the reaction tube in a fixed bed reactor, under the pressure of 3.0MPa, the flow rate of the mixed gas of methylamine is 10mL·min -1 , wherein monomethylamine: dimethylamine: trimethylamine=1:2:1 (volume ratio), the flow rate of raw material CO is 10mL min -1 . Reaction at 200°C, sampling every 2 hours, the concentration of trimethylamine increased to 78%; chromatographic analysis showed that the total selectivity of formamide compounds was 92%.
Embodiment 3
[0023] Weigh 20g Co 3 o 4 impregnated in 48.6mmol·L -1 hydrated ruthenium trichloride solution, stirred at room temperature for 20 h, dried at 130 ° C, and reduced for 3 h at 350 ° C in a hydrogen atmosphere to obtain 2wt% Ru / Co 3 o 4 , take 14-25 mesh catalyst and fill it into the reaction tube, fill the 15mm bed layer, put the reaction tube in the fixed bed reactor after filling the catalyst in the reaction tube, under the pressure of 3.0MPa, the mixture gas of methylamine The flow rate is 10mL·min -1 , wherein monomethylamine: dimethylamine: trimethylamine=1:2:1 (volume ratio), the flow rate of raw material CO is 10mL min -1 . Reaction at 200°C, sampling every 2 hours, the concentration of trimethylamine increased to 86%; chromatographic analysis showed that the total selectivity of formamide compounds was 89%.
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More