Carrier model dual metal composite catalyst and method for preparing same
A composite catalyst and bimetal technology, which is applied in the field of carrier-type bimetal composite catalyst and its preparation, can solve the problems of not being chemically combined and unable to be used for preparing alloys in polypropylene kettles, etc.
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[0064] Preparation of the first part metal composite catalyst
[0065] In the present invention, Me=methyl, Ph=phenyl, Cp=cyclopentadienyl, Ind=indenyl, H 4 Ind=4,5,6,7-tetrahydroindene, Flu=fluorenyl, Naph=naphthyl, meso=meso
Embodiment 1
[0066] Embodiment 1, the preparation of metal composite catalyst
[0067] 1. Spherical MgCl 2 Preparation of vector
[0068] 0.25mol of anhydrous MgCl 2 Add 0.5mol of absolute ethanol, 390ml of white vaseline oil, and 10ml of silicone oil into the autoclave, heat to 80°C and stir to obtain a uniform solution, blow nitrogen to raise the pressure to 1MPa, open the valve, and let the mixture in the kettle pass through 1.2mm, length 3.5 M thin tube, sprayed into 2.5L kerosene, washed 5 times with hexane, and dried at room temperature.
[0069] 2. Preparation of spherical Ziegler-Natta catalyst
[0070] Take MgCl 2 Add 2g of the carrier into the preparation bottle, blow in argon after vacuum, then add 100ml of TiCl at -20°C 4 , when the temperature was raised to 60°C with stirring, 0.5 g of 9,9-bis(methoxymethyl)fluorene (BMF) was added, and the mixture was stirred for 2 hours. Vacuum filter, add 100ml TiCl 4 , heated up to 120°C, and treated for 2 hours. Washed 6 times wit...
Embodiment 2
[0073] Embodiment 2, the preparation of metal composite catalyst
[0074] 1. Spherical MgCl 2 Preparation of vector
[0075] 0.25mol of anhydrous MgCl 2 Add 1.25mol of propanol into the autoclave, heat to 150°C and stir to obtain a homogeneous solution, pass nitrogen to raise the pressure to 1MPa, open the valve, let the mixture in the kettle pass through a 1.2mm, 3.5m long thin tube, above 100°C In a vacuum drying container, the powder was washed 5 times with heptane and dried at room temperature.
[0076] 2. Preparation of spherical Ziegler-Natta catalyst
[0077] Take MgCl 2 Add 2g of the carrier into the preparation bottle, blow in argon after vacuum, then add 100ml of TiCl at 0°C 4 , after stirring and raising the temperature to 80° C., 0.5 g of 9,9-bis(methoxymethyl)fluorene (BMF) was added. The temperature was raised to 130° C., and the mixture was stirred for 2 hours. Vacuum filter, add 100ml TiCl 4 , heated to 130° C., treated for 2 hours, washed 6 times with ...
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