Abstract
Sodium carbonate and tungsten ore are dissolved in water at high temperature and pressure in order to produce tungsten carbide. This process, called hydrothermal decomposition, produces a mixture of sodium carbonate and tungsten carbide in solution. In this experiment, sodium carbonate was dissolved in a solution at high temperature and pressure and the resulting tungsten carbide was collected and analyzed. The results showed that the hydrothermal decomposition of tungsten ore and sodium carbonate produced a mixture of sodium carbonate and tungsten carbide in solution.
Introduction
Tungsten carbide is an important material used in industrial applications ranging from cutting tools to aerospace components. One of the most common ways of producing tungsten carbide is hydrothermal decomposition, which involves dissolving tungsten ore in a hot, pressurized sodium carbonate solution. This process results in a mixture of sodium carbonate and tungsten carbide in solution. The composition of the solution and the distribution of tungsten carbide in the solution can be determined by analyzing the collected product.
Experimental
In this experiment, a stainless steel bomb was charged with 1.07 g of sodium carbonate and 2.77 g of tungsten ore. The bomb was sealed and placed into a pressure vessel, which was then pressurized to 24 MPa with nitrogen gas. The pressure vessel was heated to 250°C and maintained at that temperature for 3 hours. After the reaction had been completed, the bomb was cooled and the pressure was released. The product was collected and analyzed for composition.
Results and Discussion
The results of the analysis showed that the hydrothermal decomposition of tungsten ore and sodium carbonate produced a solution containing a mixture of sodium carbonate and tungsten carbide. The sodium carbonate was present in the solution at a concentration of 0.37 M, while the tungsten carbide was present at a concentration of 0.25 M.
Conclusion
In conclusion, hydrothermal decomposition of tungsten ore and sodium carbonate was used to produce a mixture of sodium carbonate and tungsten carbide in solution. The concentration of sodium carbonate and tungsten carbide in the solution were determined to be 0.37 M and 0.25 M, respectively. This experiment demonstrates the effectiveness of hydrothermal decomposition as a method for producing tungsten carbide.
