This research was to develop technologies to enhance the production of metal powder, tungsten carbide. With hydrothermal Thermal treatments. (Hydrothermal Treatment), under voltage, temperature, concentration factor solution. The results showed that the success of the objectives. Can produce metal powder, tungsten carbide using 0.4V Voltage temperature between 60-80 ° C at a concentration of 3-7 N HCl solution to dissolve fragments cemented carbide 48 hours to produce metallic tungsten. Carbide average of 110.83 grams per day, the efficiency of metal powder, tungsten carbide rose 63.16%.
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