The production efficiency of the thermal decomposition method of ammonium metatungstate can be evaluated from multiple aspects. The following is a detailed analysis based on the relevant figures and information in the reference article:
- Temperature control range
Temperature range: The suitable temperature range of the thermal decomposition method of ammonium metatungstate is between 210℃ and 265℃.
Efficiency impact: Within this temperature range, it can ensure that ammonium paratungstate is effectively thermally decomposed to form ammonium metatungstate, while avoiding side reactions or product dissolution caused by excessive temperature.
- Decomposition time and conversion rate
Decomposition time: Generally controlled at about 1 hour to ensure that the reaction is fully carried out.
Conversion rate: Under appropriate temperature and time control, the thermal decomposition conversion rate is usually around 80%. However, this depends on the accuracy of the equipment and operating conditions.
- Equipment and process improvement
Traditional equipment: Although the traditional rotary calcining furnace is the main equipment used in my country to produce ammonium metatungstate, the thermal decomposition conversion rate is limited due to low control accuracy.
Technological improvement: In recent years, Americans have made many improvements to the rotary furnace, upgraded the tube-type multi-hearth furnace, and increased the recovery rate of AMT to 95%. This shows that through technological improvements, production efficiency can be significantly improved.
- Production cost
Raw material cost: As a raw material, ammonium paratungstate (APT) has a relatively low cost, which helps to reduce production costs.
Energy efficiency: Under optimized process and lean management, the consumption of steam and waste heat energy can be reduced, further reducing production costs.
- Automation and operating efficiency
Automation: Improving the automation of the production line can reduce labor costs and improve production efficiency.
Operational efficiency: Through employee training and the improvement of multi-position operation skills, human input can be reduced and operational efficiency can be improved.
The production efficiency of the thermal decomposition method of ammonium metatungstate is affected by multiple factors such as temperature control, decomposition time, equipment process, production cost and automation. Under appropriate temperature and time control, combined with technological improvements and lean management, higher production efficiency and recovery rate can be achieved. At the same time, improving the automation and operating efficiency of the production line is also an important way to improve production efficiency. However, the specific production efficiency still needs to be evaluated based on specific equipment and operating conditions.
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