Synthesis technology for triethyl aluminum

A triethylaluminum and synthesis process technology, which is applied in the field of triethylaluminum synthesis process, can solve the problems of high hydrogen raw material consumption, unfavorable production control, and long synthesis time, and achieve low cost, small equipment requirements, and high reaction efficiency. short cycle effect

Active Publication Date: 2014-05-07
营口风光新材料股份有限公司
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Problems solved by technology

The problem existing in the synthesis process of triethylaluminum is that the high temperature and high pressure synthesis takes a long time, which is not conducive to production control, and at the same time, the consumption of hydrogen raw materials is high

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  • Synthesis technology for triethyl aluminum

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Embodiment 1

[0015] Embodiment 1 A kind of synthetic technique of triethylaluminum

[0016] 1) Preparation of catalyst

[0017] Add 200 kg of aluminum powder and 0.5 kg of titanium powder into the mixing kettle, add white oil, control the quality of the white oil to be twice that of the titanium aluminum powder, control the temperature of the kettle at 60-65°C, stir and mix thoroughly, under nitrogen protection Add it into the hydrogenation kettle, and the stirring is always on at this time.

[0018] 2) Hydrogenation reaction

[0019] Under the protection of nitrogen and the pressure of 0.15MPa, the above-prepared catalyst was added to a high-pressure synthesis reactor equipped with 4.5 tons of triethylaluminum as a seed, and the temperature was raised to 130°C. For the synthesis reaction, the pressure of the synthesis reaction is controlled at 8-10MP, and the reaction is continued for 6 hours.

[0020] 3) ene reaction

[0021] The temperature of the reactor is lowered to 100°C, and t...

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Abstract

The invention relates to a synthesis technology for triethyl aluminum. The synthesis technology comprises the following steps of mixing aluminum powder and titanium powder in percentage by mass, under the protection of inert gas, adding the aluminum and titanium powder into a reaction kettle with triethyl aluminum serving as seeds, performing hydrogenation for 6-7 hours under reaction conditions that the temperature is 120-130 DEG C and the pressure is 8-12MPa, continuously feeding ethylene into the reaction kettle under the pressure of 0.2-0.3MPa, terminating the reaction within 5-6 hours to obtain rough triethyl aluminum, performing distillation and ethylene purification on the product to obtain the final product. The synthesis technology for the triethyl aluminum adopts a body catalysis reaction method in which the triethyl aluminum seeds are used as a dispersing medium, so that the reaction temperature and the reaction pressure are low, and the yield of the product is up to over 90 percent.

Description

technical field [0001] The invention relates to an organic synthesis process, in particular to a synthesis process of triethylaluminum. Background technique [0002] Triethylaluminum (Aluminumtriethyl, TEA), the chemical formula is C 6 h 15 Al, Al (C 2 h 5 ) 3 , the molecular weight is 114.16. It is mainly used in organic synthesis, especially as an important component of catalysts in the polymerization of ethylene and propylene, and also as rocket fuel. The problem existing in the synthesis process of triethylaluminum is that the high-temperature and high-pressure synthesis takes a long time, which is not conducive to production control, and at the same time, the consumption of hydrogen raw materials is high. Contents of the invention [0003] The object of the present invention is to provide a kind of synthetic technique of triethylaluminum, comprising the steps: [0004] 1) Mix titanium powder and aluminum powder in white oil, under the protection of inert gas, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/06
Inventor 王磊李化毅于艳敏王振国陈雪张杨
Owner 营口风光新材料股份有限公司
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