The utility model relates to a device for reducing IV-valent
germanium into a II-valent
germanium compound in a
liquid state. The device for reducing the IV-valent
germanium into the II-valent germanium compound in the
liquid state comprises an electric jacket, a three-neck flask, a circulating cooling
reflux mechanism, a first-stage absorption
bottle and a second-stage absorption
bottle, an inner cavity of the electric jacket is in a concave hemispherical shape, the three-neck flask is arranged in the inner cavity of the electric jacket, a
thermometer is arranged in a left opening of the three-neck flask, a middle opening of the three-neck flask is a feeding opening, a right opening of the three-neck flask is connected with the circulating cooling
backflow mechanism, an upper opening of the circulating cooling
backflow mechanism is an inlet, a lower opening of the circulating cooling
backflow mechanism is an outlet, and a spiral
cooling pipe is arranged in the circulating cooling backflow mechanism. The circulating cooling backflow mechanism is communicated with the first-stage absorption
bottle through a flow guide
pipe, a side opening of the first-stage absorption bottle is communicated with the second-stage absorption bottle through a flow guide
pipe, and a side opening of the second-stage absorption bottle is communicated with the outside. According to the method, the IV-valent germanium can be reduced into the II-valent germanium compound in a
liquid state, the conversion and reduction reaction process is safe, suck-back is avoided, the method is green and
environmentally friendly, and no
tail gas is discharged through two-stage or more absorption.