Thermal Process Production Technology and Heavy Metal Control of Food-Grade Disodium Phosphate

Food-grade Disodium Phosphate adopts advanced thermal process neutralization production technology, which is the mainstream green production process for high-purity phosphate products in China. Through precise raw material ratio and high-temperature reaction control, it realizes high-yield and low-impurity production, meeting global food safety grade standards.

 

The production process takes industrial-grade phosphoric acid and soda ash as core raw materials, and undergoes high-temperature neutralization reaction, concentration crystallization, centrifugal dehydration and drying screening. The whole production process adopts closed automated operation to avoid external impurity pollution and ensure stable product purity.

 

Strict heavy metal impurity control is the core advantage of food-grade Disodium Phosphate. Professional manufacturers set up multi-stage filtration and purification procedures to strictly control lead, arsenic, cadmium and other harmful heavy metal ions within ppb level, far lower than international food additive limit standards.

 

After production, each batch of Disodium Phosphate will undergo professional testing for pH value, solubility, impurity content and nutritional indicators, and be equipped with complete food-grade qualification certificates. The product has stable pH buffering performance, no toxic and harmful residues, and is safe and reliable for food and aquaculture industries.

 

Thanks to mature thermal process technology and strict quality control system, Chinese food-grade Disodium Phosphate is widely exported to Europe, America, Southeast Asia and other regions, and has become the preferred high-quality raw material for global food and aquaculture enterprises.