Disilane reaction kettle

The invention discloses a disilane reaction kettle. The disilane reaction kettle comprises a feeding system, a storage trough, an outlet in the upper portion of the reaction kettle, a slag discharging opening in the bottom of the reaction kettle and a high-shearing-force blade stirrer installed in the reaction kettle, wherein the feeding system and the storage trough are connected with the reaction kettle. The feeding system is filled with magnesium silicide and ammonium chloride, the storage trough is filled with liquid ammonia, a silane reaction mixture is discharged out of the outlet, and reaction sundries are discharged out of the slag discharging opening; the disilane reaction kettle is characterized in that the included angle between the slag discharging opening and the horizontal plane ranges from 30 degrees to 60 degrees. As the disilane reaction kettle is subjected to optimization design, and particularly, the included angle of the slag discharging opening is designed, the slag discharging speed is i