Industrial grade sodium tripolyphosphate(STPP) on the market is divided into two processes, wet process and thermal process, due to different production processes. So how do we choose high quality STPP?
Due to the difference in production process, the source of the wet process raw material is very extensive (directly using phosphate rock), with a large amount of impurities, and inevitably there will be many impurities left in the production of the subsequent STPP product. Although the cost is low, the purity is low, the impurities are many, the quality can only be up to standard, and the stability is general.
The STPP produced by the thermal process has been matured after years of research and improvement. After entering the new century, a number of powerful thermal-process phosphoric acid producers have emerged, and CDchem is undoubtedly one of the best.
Although the cost of STPP produced by thermal method is high, the purity is high, the impurities are less, and the quality is more stable. For example, CDchem, which specializes in producing STPP, has our own phosphate rock from the phosphate mine. The yellow phosphorus produced by the stone, and then the thermal-processed phosphoric acid produced by the thermal process is used as a raw material, the particles are uniform, the impurities are less, the flow rate is better, and the amount is less.
High-quality STPP can be widely used in water treatment, detergent additives, mineral processing industry as flotation agent, refractory material, ceramic important addition, power station, rolling stock, boiler and fertilizer plant cooling water highly effective softener for treatment. The ceramic grade STPP produced by CDchem has a leading position in the ceramic industry.
