NOVELTY - A solid electrolyte manufacturing apparatus (1) has a pulverization synthetic unit (10), temperature stabilizing unit (30), synthetic unit (20), temperature stabilizing unit (40), connection unit (50,52) and circulation unit (54). The raw material containing lithium sulfide and other sulfide(s) is pulverized in the pulverization synthetic unit, and reacted with hydrocarbon-based solvent in the synthetic unit to obtain solid electrolyte. The raw material is circulated between pulverization synthetic unit and synthetic unit through the circulation unit during reaction.    USE - Apparatus is used for manufacturing solid electrolyte (claimed) used for lithium secondary battery used as power supply for mobile telephone, portable electronic device, domestic electric power storage apparatus, two-wheeled motor vehicle and hybrid electric vehicle.    ADVANTAGE - The apparatus produces solid electrolyte with high productivity.    DETAILED DESCRIPTION - A solid electrolyte manufacturing apparatus has a pulverization synthetic unit, temperature stabilizing unit (30), synthetic unit, temperature stabilizing unit (40), connection unit and circulation unit. The raw material containing lithium sulfide and other sulfide(s) is pulverized in the pulverization synthetic unit. The temperature stabilizing unit (30) maintains inside temperature of pulverization synthetic unit at 20-80 degrees C. The pulverized raw material containing lithium sulfide and other sulfide(s) is reacted with hydrocarbon-based solvent in the synthetic unit to obtain solid electrolyte. The temperature stabilizing unit (40) maintains inside temperature of synthetic unit at 60-300 degrees C. The pulverization synthetic unit and synthetic unit are connected through the connection unit. The raw material is circulated between pulverization synthetic unit and synthetic unit through the circulation unit during reaction.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of solid electrolyte manufacturing apparatus.    Solid electrolyte manufacturing apparatus (1)    Pulverization synthetic unit (10)    Synthetic unit (20)    Temperature stabilizing units (30,40)    Connection units (50,52)    Circulation unit (54)    Heat-exchange unit (60)