China Machine Tool Industry Development Analysis

In recent years, the numerical control rate of China's production machine tools has increased. In 2011, the CNC machine tool rate for metal cutting machines was 29.9%, and the numerical control rate for forming machine tools was 6.29%. In 2012, they fell to 25.8% and 5.8% respec

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Separation of cobalt by oxidative hydrolysis

The use of a low solubility product of trivalent cobalt hydroxide to oxidatively hydrolyze and precipitate cobalt is a common method for producing nickel and cobalt in a separation solution. In the acidic solution, Co 2 + is preferentially oxidized than Ni 2 + , and the solubility product of Co(OH

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