Preparation method of membrane catalytic reactor for decomposing hydrogen phosphide into yellow phosphorus
A technology of membrane catalysis and phosphine, applied in chemical instruments and methods, separation methods, physical/chemical process catalysts, etc., can solve the problems of increasing gas delivery pressure drop, not using industrial scale applications, and low gas flux , to achieve the effect of reducing pressure drop, reducing catalyst cost and improving gas flux
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Embodiment 1
[0015] A method for preparing a membrane catalytic reactor for decomposing phosphine into yellow phosphorus, comprising the following steps: 1) After mixing 50 g of aluminum oxide powder with 20 mL of propanol, adding 15 g of organic monomer polyvinyl alcohol and 1.5 g of 2,4-diacrylamidobenzenesulfonic acid forms a mixed solution to make a suspension slurry with a solid phase volume fraction of 56% to 60%, which is sintered into a porous ceramic support after drying and demoulding; 2) 1) The porous ceramic support obtained in the method was immersed in mixed solutions of 0.5% and 0.2% nickel nitrate and ferric nitrate for 6 h and pulled at a uniform speed, then dried at 80 °C for 6 h, and then calcined at 500 °C for 6 h, and finally under the condition of hydrogen Reduction at 200 °C for 3 h to obtain Ni-Fe 3 o 4 / Al 2 o 3 Porous membrane catalytic reactor. Wherein Ni content is 0.05%, Fe 3 o 4 The content is 0.02%.
[0016] The obtained catalyst is used for the cataly...
Embodiment 2
[0018] A method for preparing a membrane catalytic reactor for decomposing phosphine into yellow phosphorus, comprising the following steps: 1) After mixing 100 g of aluminum oxide powder with 42 mL of propanol, adding 12 g of organic monomer polyvinyl alcohol and 4 g of 2,4-diacrylamidobenzenesulfonic acid forms a mixed solution to make a suspension slurry with a solid phase volume fraction of 56% to 60%, which is sintered into a porous ceramic support after drying and demolding; 2) 1) The porous ceramic support obtained in the method was immersed in a mixed solution of 0.4% and 0.3% nickel nitrate and ferric nitrate for 6 h and pulled at a uniform speed, then dried at 80 °C for 6 h, and then calcined at 500 °C for 6 h, and finally under the condition of hydrogen Reduction at 200°C for 3 h to obtain Ni-Fe 3 o 4 / Al 2 o 3 Porous membrane catalytic reactor. Wherein Ni content is 0.01%, Fe 3 o 4 The content is 0.008%.
[0019] The obtained catalyst is used for the catalyt...
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