Abstract: A method of extracting germanium from a germanium deposit using a thermal reduction process is disclosed. The method includes: adding sodium monophosphate to a germanium deposit to obtain a mixed germanium deposit; isolating the mixed germanium deposit from air; increasing the temperature and then baking the mixed germanium deposit; and obtaining a germanium concentrate after volatilization of the mixed germanium deposit.

Abstract: Provided is a method and apparatus for secondary enrichment of germanium from low-grade lignite germanium concentrates in vacuum, and particularly a method and apparatus for secondary enrichment and recovery of germanium from low-grade lignite germanium concentrates with microwave heating in vacuum, which belongs to a germanium extraction method and apparatus in the field of metallurgy.

Abstract: A method of extracting germanium from a germanium deposit using a thermal reduction process is disclosed. The present disclosure relates to a method of extracting germanium, which belongs to the field of metallurgy technologies of nonferrous metal, and particularly relates to a method of extracting germanium from a germanium deposit through thermal reduction, volatilization and concentration using sodium monophosphate as a reducing agent. The method of the present disclosure includes: adding sodium monophosphate to a germanium deposit; isolating from air; increasing the temperature and baking the germanium deposit; and obtaining a germanium concentrate after volatilization and concentration of the germanium deposit. Through baking the germanium deposit at 1,000° C., volatilization and concentration of the germanium deposit, the germanium recycling rate exceeds 96% when sodium monophosphate weighing 2.5% of the germanium depositis added.

Abstract: Provided is a method and apparatus for secondary enrichment of germanium from low-grade lignite germanium concentrates in vacuum, and particularly a method and apparatus for secondary enrichment and recovery of germanium from low-grade lignite germanium concentrates with microwave heating in vacuum, which belongs to a germanium extraction method and apparatus in the field of metallurgy.

Abstract: A clutch is provided with a clutch weight assembly (10), a main driving assembly (20), a plurality of co-rotating elements (30), and a base plate (40). The main driving assembly (20) will be rotated when the power source is activated, and the co-rotating elements (30) are driven synchronously to rotate and then the clutch weight assembly (10) will be driven to rotate synchronously by the co-rotating elements (30). When the speed of the rotation is high enough and the centrifugal force of clutch weight (13) is strong enough to overcome the inward bending strength of the flexible component (14) of the clutch weight assembly (10), then the clutch weight (13) will fly outward to grab the driven part (60) to proceed the slippery engagement.

Abstract: A clutch is provided, comprising a clutch weight assembly (10), a main driving assembly (20), a plurality of corotating elements (30), and a base plate (40). The main driving assembly (20) will be rotated when the power source is activated, and the corotating elements (30) are driven synchronously to rotate and then the clutch weight assembly (10) will be driven to rotate synchronously by the corotating elements (30). When the speed of the rotation is high enough and the centrifugal force of clutch weight (13) is strong enough to overcome the inward bending strength of the flexible component (14) of the clutch weight assembly (10), then the clutch weight (13) will fly outward to grab the driven part (60) to proceed the slippery engagement.