'Excellent first' in mind, we operate closely with our customers and supply them with efficient and expert services for washing powder plant, STPP equipment, sulphonation equipment. Welcome new and old customers to visit, guide and cooperate. For a long time, our company has accumulated rich practical experience in production, and has advanced production technology and high degree of automation as we actively relied on scientific and technological progress. We always apply the 'client first' principle. Since the establishment of our company, we have gradually established our own quality management system through continuous learning and practice.
Sodium Tripolyphosphate (STPP) Plant
STPP is one of the most important ingredients in detergent powder formulation. Its chemical formula is Na5P3O5.
The STPP preparation process is composed of three steps: preparation of phosphoric acid from phosphate rocks, sodium pyrophosphate from neutralization of the acid, and finally the formation of STPP by condensation and polymerization of the sodium pyrophosphate.
There are two processes now in common use for preparing STPP:
1.Wet process
Converse ingredients in the phosphate rocks into their corresponding sulfuric salt and phosphoric salt. The liquid phosphoric acid is neutralized in next section into sodium pyrophosphate, then the phosphate to be condensed and polymerized into STPP.
2.Thermal process
Feed phosphate rocks, coke and silicate rocks into an electric furnace to obtain phosphorus. The phosphorus is burned, and phosphorus pentoxide is formed. The later is hydrated and polymerized into STPP.
The use of STPP :It is mainly used in the industries of synthetic detergent,water softening,tannage,dye,paint, petroleum ,paper, organic synthesis,chemical,rubber.
If you're satisfied with our stpp production plant, welcome to wholesale the high quality products with competitive price from us. As one of the leading manufacturers and suppliers in this profession, we can assure you of its reliable performance.

Hangzhou ASIA Chemical Engineering Co.,Ltd
The Corporation has supplied household chemicals and inorganic chemicals plants to 200 customers all over the world since 1985. Especially in the household chemicals production field, e.g. detergent powder plants, sulphonation/sulphation plants, liquid detergent production plants, oil and fats refining plants. In the inorganic chemicals e.g. Sodium Sulphate, Caustic Soda, Sodium Carbonate Etc Field. The Corporation has delivered a number of complete plants that are technically advanced, high-efficiency, easy to be operated, and cooperated with many international groups such as P&G, Unilever, Henkel, etc.
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FAQ:
1. What is the chemical formula of Sodium Tripolyphosphate (STPP)?
The chemical formula of STPP is Na5P3O5.
2. Can you explain the STPP preparation process?
The STPP preparation process involves three steps: preparing phosphoric acid from phosphate rocks, obtaining sodium pyrophosphate through acid neutralization, and then condensing and polymerizing sodium pyrophosphate to form STPP.
3. What are the two common processes for preparing STPP?
The two common processes are the wet process, involving the conversion of phosphate rocks into sulfuric and phosphoric salts, and the thermal process, where phosphate rocks, coke, and silicate rocks are used to obtain phosphorus, leading to the formation of STPP.
4. In which industries is STPP commonly used?
STPP finds applications in synthetic detergent manufacturing, water softening, tannage, dyeing, paint production, petroleum, paper, organic synthesis, chemical processes, and rubber production.
5. How can one obtain high-quality STPP products from your production plant?
If interested in our STPP production plant products, you are welcome to wholesale them at a competitive price. As a leading manufacturer, we assure reliable performance in delivering high-quality STPP for various industrial applications.
Relying on the advantages of technology research and development in the field of STPP Washing Powder / Detergent Powder/Laundry Powder and rich production experience, we can provide customers with one-stop comprehensive solutions such as product design and development, testing, mass production, and follow-up tracking services. We have been making great efforts to achieve this win-win situation and sincerely welcome you to join us. Our company insists on trustworthiness of contract, and our production and operation have developed rapidly.
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