The report provides a detailed analysis essential for establishing an Ammonium Tungstate production plant. It encompasses all critical aspects necessary for Ammonium Tungstate production, including the cost of Ammonium Tungstate production, Ammonium Tungstate plant cost, Ammonium Tungstate production costs, and the overall Ammonium Tungstate production plant cost. Additionally, the study covers specific expenditures associated with setting up and operating an Ammonium Tungstate production plant. These encompass production processes, raw material requirements, utility requirements, infrastructure needs, machinery and technology requirements, manpower requirements, packaging requirements, transportation requirements, and more.
Ammonium Tungstate, mainly in its form as Ammonium Paratungstate (APT), has various applications across different downstream industries. It is mainly utilized as a source for high-purity tungsten oxides and tungsten metal powders, which makes it important in the production of tungsten-based materials. It has its function as a laboratory reagent and is also used in the manufacture of catalysts, mainly for hydrocracking processes in the petrochemical industry. Additionally, it finds applications in the production of absorbent gels and as a coloring agent in the porcelain industry.
The market demand for Ammonium tungstate is majorly driven by its application in various downstream industries and sectors, such as tungsten-based materials, laboratory reagents, petrochemicals, porcelain, etc. Its applications in the electronics and aerospace industries elevate its market demand. The usage of tungsten-based materials in defense and aerospace industries boosts the market growth for Ammonium Tungstate.
The function of Ammonium Tungstate derived catalysts in various chemical processes contributes to its demand in the petrochemical industry. Additionally, the utilization of tungsten carbide, derived from ammonium tungstate in various downstream industries such as construction, metalworking, mining, and oil and gas drilling industries, fuels the market expansion for Ammonium Tungstate. Also, new mining operations in major producing regions further promote industrial Ammonium Tungstate procurement.
Raw Material for Ammonium Tungstate Production
According to the Ammonium Tungstate production plant project report, the various raw materials for Ammonium Tungstate production include tungsten concentrate-sodium hydroxide.
Production Process of Ammonium Tungstate
The extensive Ammonium Tungstate production cost report consists of the following major industrial production process:
- Production via the extraction process: The production process of Ammonium Tungstate initiates with pretreatment where sodium hydroxide (NaOH) is added to tungsten concentrate to create a coarse sodium tungstate solution. This solution is filtered and purified. In the purification stage, impurities such as silicon, arsenic, phosphorus, and molybdenum are removed by adjusting the pH with dilute sulfuric acid and adding magnesium sulfate to precipitate these impurities as magnesium salts. The resulting purified solution is then transformed into a fine sodium tungstate solution, which is mixed with sodium sulfide in an agitator bath to obtain molybdenum trisulfide, followed by filtration to yield pure sodium tungstate. Finally, in the extraction phase, sulfuric acid is introduced to the pure sodium tungstate solution to adjust the pH to between 2 and 3, which facilitates the aggregation of sodium tungstate into sodium metatungstate. This mixture undergoes extraction using gas and organic phases, resulting in tungsten forming an extract complex that enters the organic phase. The extract complex is washed with water and ammonia solution is added to produce ammonium tungstate as the final product.
Properties of Ammonium Tungstate
Ammonium Tungstate is a white crystalline powder having the molecular formula (NH4)10H2(W2O7)6 or (NH4)10(H2W12O42) and a molecular weight of 2956.30 g/mol. It has a density of 2.3 g/cm³. It has a melting point greater than 300 °C, which indicates its stability at high temperatures. It is soluble in warm water but only somewhat soluble in cold water. It is insoluble in organic solvents like methanol and n-octanol. It is stable under normal conditions but can react with strong oxidizing agents and alkalis to release ammonia gas. It is non-corrosive in the presence of glass but should be handled with care due to its irritant properties upon contact with skin or mucous membranes. Upon heating to a temperature of 600 °C, ammonium tungstate decomposes to form tungsten(VI) oxide (WO3), ammonia (NH3), and water (H2O).
