The common production methods of ferric pyrophosphate include the ferric nitrate method and the ferric chloride method. The impacts of the improvement of the production process on the price of ferric pyrophosphate raw materials are as follows:
I. Ferric Nitrate Method
1. In terms of Production Cost
Improvement of Raw Material Utilization Rate: If the improved process can make the reaction between ferric nitrate and anhydrous sodium pyrophosphate more sufficient, increase the conversion rate of raw materials, and reduce the waste of ferric nitrate and anhydrous sodium pyrophosphate, more ferric pyrophosphate can be produced with the same purchase quantity of raw materials. The raw material cost per unit product is reduced. Under the influence of market competition, the product price may tend to decline.
Reduction of Impurity Treatment Cost: Optimizing the process of solution purification links such as arsenic removal and heavy metal removal can more efficiently remove impurities, reduce the dependence on arsenic removal agents and heavy metal removal agents, or decrease the usage amount of these agents, thus reducing the impurity treatment cost and creating room for the price reduction of ferric pyrophosphate.
2. In terms of Production Efficiency
Shortening of Drying Time: If the drying process is improved, the drying time at 80-90°C can be shortened, the production efficiency is improved, the turnover rate of equipment is increased, and the output per unit time is increased. When the market demand is stable, the increase in supply may lead to a price drop.
Optimization of the Overall Process: Optimizing the entire production process of the ferric nitrate method, such as adopting a continuous production process, etc., can reduce the stagnation time and energy consumption during the production process, etc., and also improve the production efficiency, which helps to reduce the product price.
II. Ferric Chloride Method
1. In terms of Production Cost
Optimization of Precipitation Generation: Improving the process conditions of the reaction between ferric chloride or ferric citrate and an aqueous solution of sodium pyrophosphate to form a precipitate, such as optimizing the reaction temperature, pH value, etc., can make the precipitation reaction more complete, reduce the residue of raw materials, lower the raw material cost, and thus may reduce the product price.
Reduction of Washing Cost: Optimizing the filtration and water washing links, adopting more efficient filtration equipment and washing methods, reducing the washing water consumption and washing time, and reducing the washing cost and wastewater treatment cost, providing room for the price reduction of ferric pyrophosphate.
2. In terms of Production Efficiency
Improvement of Drying and Crushing: Making process improvements in the drying and crushing links, such as adopting more advanced drying equipment and crushing technology, can improve the efficiency of drying and crushing, shorten the production cycle, increase the output, and under the influence of the market supply and demand relationship, the price may be under downward pressure.
