Cradle to Consumer
Identity ID
9d2a470d-29fc-44d7-b0da-35dc4a7542b1
Materials
Associated ID
2518dc26-bf25-4883-86f5-be2a96c0c6d9
Included activities starts
Included activities ends
Description
This dataset is a market dataset, representing the consumption market of the region; the dataset includes the transport of the product from the gate to the consumer end, and the transport service is calculated according to the transport situation of this product in this region. Potassium tripolyphosphate is widely used in fields such as food, daily chemicals, electroplating, textiles, water treatment and ceramics; Potassium tripolyphosphate is modelled as a pure substance; when modelling this substance the user needs to add a solvent of their choice in the model; the dataset contains the main raw and auxiliary materials, energy, waste and atmospheric emissions of the production process, and infrastructure such as the manufacture of production equipment and the construction of plant buildings is not included within the dataset boundary; the data inventory is formed by merging data from multiple sources; the production activities of this product include neutralisation, filtration, drying, polycondensation, cooling, and crushing and screening. Sulfur is a by-product of this production process.
Activity Description
The production activities of this product include neutralization, filtration, drying, polycondensation, cooling, crushing and screening and other processes.
Process Description
The chemical formula of potassium tripolyphosphate is K5P3O10, CAS number 13845-36-8. It is usually white crystalline powder or granules, odorless, slightly salty in taste, and easy to absorb moisture. It is easily soluble in water. The aqueous solution is weakly alkaline and insoluble in organic solvents such as ethanol and ether. It has stable chemical properties and is not easily decomposed in the air. It will decompose into potassium pyrophosphate and potassium phosphate when heated to above 620°C. It has good complexing ability and can form stable complexes with calcium, magnesium, iron and other metal ions. It also has certain emulsification, dispersion and water retention properties. Industrially, it is widely used in the food industry (as a quality improver, moisture retaining agent, pH regulator and metal ion chelating agent, etc.), daily chemical industry (preparation of high-end detergents, dishwashing liquids); also used in the electroplating industry (as a complexing agent and buffering agent for electroplating solutions), textile industry (as a dyeing and finishing auxiliary), and can also be used in water treatment (as a water softener) and ceramic manufacturing to adjust glaze properties.
Time period
2017
2026
Geography
China,Hainan
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The two-step method is the advanced mainstream technology for the production of food-grade potassium tripolyphosphate, accounting for more than 85% of the domestic food-grade potassium tripolyphosphate market. This data set represents this mainstream technology: a neutralization reaction between phosphoric acid and potassium hydroxide generates dipotassium hydrogen phosphate and potassium dihydrogen phosphate, which are filtered to remove impurities and then dried. The dried material undergoes a polycondensation reaction at high temperature to generate potassium tripolyphosphate, and finally is cooled, crushed, and screened to obtain the finished product. The main chemical reaction formulas involved: 5KOH + 3H3PO4 → 2K2HPO4 + KH2PO4 + 5H2O, 2K2HPO4 + KH2PO4 → K5P3O10 + 2H2O