Synthesis process of triethylaluminum
A technology of triethylaluminum and synthesis process, applied in the field of synthesis process of triethylaluminum, can solve problems such as being unsuitable for large-scale production, complex production process, low production efficiency, etc., and achieves improvement of single-pass conversion rate and product quality. Productivity, overcoming the effect of many processes, and improving work efficiency
Inactive Publication Date: 2016-05-11
QINGDAO SHOUTAI AGRI SCI & TECH CO LTD
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Problems solved by technology
In the current synthesis process method of triethylaluminum, the process flow is not easy to implement, the purity of the finished triethylaluminum product is low, the single-pass conversion rate of the reactant is low, the production process is complicated, the production efficiency is low and the cost is high, so it is not necessary suitable for mass production
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment
[0011] The synthesis technique of the triethylaluminum of the present embodiment comprises the following steps:
[0012] (1) Mix titanium powder and aluminum powder in white oil, and under the protection of inert gas, add it to the reaction kettle with triethylaluminum as the seed, feed hydrogen gas at 130°C and 10MPa, and react for 7 hours;
[0013] (2) Cool down to 120°C, continuously feed ethylene at 0.3MPa, and react for 6 hours to obtain crude triethylaluminum;
[0014] (3) Distill the crude triethylaluminum and purify ethylene to obtain the final product.
[0015] The synthesis process of triethylaluminum does not require cumbersome post-reaction treatment, the process is simple and feasible, and it is environmentally friendly and pollution-free, the process flow is easy to implement, and the industrial production of the product is realized.
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The invention discloses a synthesis process of triethylaluminum. The synthesis process comprises the following steps: mixing aluminum powder with titanium powder by mass percent to obtain a mixture; adding the mixture into a reaction kettle filled with triethylaluminum as seeds under the protection of an inert gas; performing hydrogenation reaction under the reaction conditions of 120-130 DEG C and 8-12 MPa for 6-7 hours; continuously feeding ethylene into the reaction kettle at the pressure of 0.2-0.3 MPa; finishing the reaction within 5-6 hours to obtain crude triethylaluminum; distilling and ethylene-purifying the crude triethylaluminum to obtain the triethylaluminum. According to the invention, a bulk catalytic reaction method using a triethylaluminum seed material as a dispersion medium is low in reaction temperature and pressure, and has a yield of more than 90%.
Description
technical field [0001] The invention belongs to the technical field of chemical synthesis, and in particular relates to a synthesis process of triethylaluminum. Background technique [0002] Triethylaluminum has high chemical reactivity and will smoke and spontaneously ignite when exposed to air. It is extremely sensitive to trace amounts of oxygen and moisture, and can easily cause combustion and explosion. Violent reaction occurs in contact with acids, halogens, alcohols, amines. When meeting with water, it will decompose strongly, releasing flammable alkane gas. In the current synthesis process method of triethylaluminum, the technological process is not easy to implement, the purity of the finished triethylaluminum product is low, the single-pass conversion rate of the reactant is low, the production process is complicated, the production efficiency is low and the cost is high, so it is not necessary Suitable for mass production. Contents of the invention [00...
Claims
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Inventor 张晶
Owner QINGDAO SHOUTAI AGRI SCI & TECH CO LTD