Nanometer fibre loading transition metallic catalyst

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...

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 separation, convenient operation, reduction of corrosion and environmental pollution, simulation of enzyme catalytic process and improvement of catalyst activity, selectivity and stability and other advantages, so that it has high industrial value. Although the catalysts such as polymer loaded Ph, Pd, and Pt have been studied earlier, they have not been industrialized. The main problems are poor stability, loss of metal ions and destruction of the polymer skeleton. Sometimes metal ions It will also be reduced to microcrystals, and due to the low strength of polymer catalysts, it is difficult to apply industrially