This system implements two step direct synthesis to produce aluminium triethyl, this method is easy, the purity is high and with low cost. It will have the broad market prospect in our country. 本系统实行二步法直接合成三乙基铝的,此法具有工艺简单、操作方便、产品纯度高、成本低等优点,在我国将具有广阔的市场前景。