Nanometer fibre loading transition metallic catalyst

A transition metal and nanofiber technology, applied in physical/chemical process catalysts, catalyst activation/preparation, organic compound/hydride/coordination complex catalysts, etc., can solve the problem of low strength of polymer catalysts, difficulty in industrial application, and stability Poor performance and other problems, to achieve the effect of preventing metal loss, high conversion rate, and preventing catalyst poisoning

Inactive Publication Date: 2007-07-04
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Catalytic hydrogenation is an important processing step in the fields of petroleum, pharmaceuticals, and fine chemicals. Traditional hydrogenation catalysts are generally made of inorganic Al 2 o 3 , MgO, and activated carbon as the carrier, the precious metal is adsorbed on the surface of the carrier by the impregnation method, and the unsaturated organic matter is hydrogenated under the condition of high temperature and high pressure, and the metal is complexed on the macromolecule. It has good selectivity, especially in homogeneous catalytic hydrogenation, because of its structure control, easy sep

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] Take 90kg of styrene-acrylonitrile copolymer dissolved in N-N dimethylformamide solvent and put it into the reactor for stirring, heat to 70℃, add 0.5kg Rh containing RhCl under the protection of inert gas 2 0.83kg for coordination reaction for 24 hours to generate a dark green polymer and Ph complex solution, and then distill under reduced pressure to a solution with a concentration of 25%, and then put the reduced pressure distilled solution into a container with a nozzle and Connected to the output terminal of the high-voltage electrostatic generator, the nozzle is 10cm away from the metal receiving screen, the temperature is controlled at 25℃, the humidity is 20%, and the spinning voltage is 20KV. The silk is hot pressed on a 9.5kg glass fiber fabric to make a nanofiber supported transition metal catalyst. The catalyst catalyzes the hydrogenation of α-ene. The NHA-500 nitrogen-hydrogen-air integrated machine is used to generate hydrogen in a polar sol...

Example Embodiment

[0022] Example 2

[0023] Take 60kg of styrene-acrylonitrile copolymer and dissolve it in N-N dimethylformamide solvent, add it to the reactor and stir, heat to 70℃, add 10kg of Pd containing PdCl under the protection of inert gas 2 17kg for coordination reaction for 24 hours to generate a dark green polymer and Pd complex solution, and then distill under reduced pressure to a solution with a concentration of 30%, and then put the reduced pressure distilled solution into a container with a nozzle and mix it with The output end of the high-voltage electrostatic generator is connected, the nozzle is 10cm away from the metal receiving screen, the temperature is controlled at 25℃, the humidity is 20%, and the spinning voltage is 20KV. The nanowires of polymer and Pd complex are received on the metal screen, and finally the nanowires Hot press on 30kg glass fiber fabric to make nanofiber supported transition metal catalyst. The catalyst is used for catalytic hydrogenation of nitrobenze...

Example Embodiment

[0024] Example 3

[0025] Take 37kg of styrene-acrylonitrile copolymer dissolved in N-N dimethylformamide solvent and add it to the reactor for stirring, heat to 70℃, and add PtCl containing 3kg of Pt under the protection of inert gas 2 4kg for coordination reaction for 24 hours to generate a dark green polymer and Pt complex solution, and then distill under reduced pressure to a solution with a concentration of 25%, and then put the reduced pressure distilled solution into a container with a nozzle and mix it with The output end of the high-voltage electrostatic generator is connected, the nozzle is 10cm away from the metal receiving screen, the control temperature is 25℃, the humidity is 20%, and the spinning voltage is 20KV. The nanowires of polymer and Pt complex are received on the metal screen, and finally the nanowires Hot-pressed on 60kg glass fiber fabric to make nanofiber supported transition metal catalyst. The catalyst catalyzes the oxidation of benzyl alcohol under th...

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PUM

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Abstract

The invention relates to a nano-fiber loading transition metal catalyst, styrene - acrylonitrile copolymer dissolved by adding solvents reactor for mixing, heating, joining Rh, Pt or Pd chloride for the Coordination in an inert gas protection, formation high polymer and Rh, Pt or Pd complexes solution then vacuum distillation, put into the containers with a nozzle and connected with high-voltage electrostatic generator output terminal, screening the metal receive polymers and Rh, Pt or Pd complexes nanowires, nanowires hot pressing in the glass fiber fabric, crank out nanofibers supported transition metal catalysts, it has the advantages and effect of hydrogenation, oxidation reactions are normal temperature and pressure, prevent metal erosion and catalyst poisoning phenomenon occurred, high activity, does not produce harmful gases and easy separation and recovery, will not cause environmental pollution, can greatly simplify the process.

Description

technical field [0001] The invention relates to a transition metal catalyst supported by nanofibers, which is used for the hydrogenation of olefins and nitro compounds and the oxidation of alcohols, and belongs to the field of catalysts. Background technique [0002] Catalytic hydrogenation is an important processing step in the fields of petroleum, pharmaceuticals, and fine chemicals. Traditional hydrogenation catalysts are generally made of inorganic Al 2 o 3 , MgO, and activated carbon as the carrier, the precious metal is adsorbed on the surface of the carrier by the impregnation method, and the unsaturated organic matter is hydrogenated under the condition of high temperature and high pressure, and the metal is complexed on the macromolecule. It has good selectivity, especially in homogeneous catalytic hydrogenation, because of its structure control, easy separation, convenient operation, reduction of corrosion and environmental pollution, simulation of enzyme catalyti...

Claims

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Application Information

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IPC IPC(8): B01J31/22B01J35/06B01J37/34C07C5/03C07C45/29C07C209/32
Inventor 刘太奇于建香
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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