Method for continuous production of hanging type tetrahydrochysene dicyclopentadiene
A technology of hanging tetrahydrodicyclopentadiene and palladium dichloride, applied in the field of preparation of hanging tetrahydrodicyclopentadiene, achieving the effects of increased yield, simple preparation process and low equipment requirements
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Embodiment 1
[0033] Take the used raw material dicyclopentadiene 13.2g (0.1 mole) of preparing hanging tetrahydrodicyclopentadiene as example, other raw materials used and preparation method are as follows:
[0034] 1. Preparation of metal salt solution
[0035] Palladium dichloride is formulated into the palladium dichloride aqueous solution that weight concentration is 10% by conventional method, and chloroplatinic acid is formulated into the chloroplatinic acid aqueous solution that weight concentration is 10%, and nickel nitrate is formulated into the nickel nitrate that weight concentration is 30%. aqueous solution.
[0036] 2. Preparation of supported catalyst
[0037] Each 3 g of Hβ molecular sieve and silicon dioxide with a silicon-aluminum ratio of 20 are packed into different flasks, and 1.11 g of chloroplatinic acid aqueous solution with a weight concentration of 10% is added per gram of support in each flask, and the addition amount of each gram of support is as follows: The ...
Embodiment 2
[0049] Take the used raw material dicyclopentadiene 13.2g (0.1 mole) of preparing hanging tetrahydrodicyclopentadiene as example, other raw materials used and preparation method are as follows:
[0050] In step 2 of the process for preparing the supported catalyst, 3 g of Hβ molecular sieve and silicon dioxide with a silicon-aluminum ratio of 80 are loaded into different flasks, and chloroplatinic acid with a weight concentration of 10% is added per gram of molecular sieve in each flask Aqueous solution 0.21g, stir 4 hours, use rotary evaporator, temperature is 75 ℃, vacuum degree is 0.09MPa rotary evaporation, takes out and puts into crucible, puts crucible into muffle furnace, roasts in 600 ℃ air atmosphere for 3 hours, naturally After cooling, it is taken out, pressed into tablets, granulated, and passed through a 40-60 mesh sieve to prepare a molecular sieve supported catalyst loaded with 1% platinum and a supported catalyst loaded with 1% platinum loaded on silicon dioxide...
Embodiment 3
[0055] Take the used raw material dicyclopentadiene 13.2g (0.1 mole) of preparing hanging tetrahydrodicyclopentadiene as example, other raw materials used and preparation method are as follows:
[0056] In step 2 of the process for preparing the supported catalyst, 3 g of Hβ molecular sieve and silicon dioxide with a silicon-aluminum ratio of 50 are loaded into different flasks, and 10% chloroplatinic acid with a weight concentration of 10% is added to each flask by per gram of carrier Aqueous solution 0.65g, stir 4 hours, use rotary evaporator, temperature is 75 ℃, vacuum degree is 0.09MPa rotary evaporation, takes out and puts into crucible, puts crucible into muffle furnace, roasts 5 hours in 400 ℃ of air atmosphere, naturally After cooling, it is taken out, pressed into tablets, granulated, and passed through a 40-60 mesh sieve to prepare a molecular sieve supported catalyst supporting 3% platinum and a supported catalyst supporting 3% platinum on silicon dioxide. The weig...
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Abstract
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