Cradle to Consumer
Identity ID
a7b95506-4d3d-418d-bebd-258a03a31a09
Materials
Associated ID
4400d5a1-ffc8-45dd-bd85-0720e46d127e
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 consumption end, and the transport service is calculated based on the transport situation of the product in the region. Sodium persulfate is widely used in fields such as chemicals, metal surface treatment, textiles, papermaking, pharmaceutical intermediate synthesis and water treatment; sodium persulfate is modeled as a pure substance, and when modeling this substance the user needs to add a solvent of their choice in the model; this dataset includes the main raw and auxiliary materials, energy, wastewater and air emissions of the production process, and infrastructure such as production equipment manufacturing and plant construction is not included within the dataset boundary; the data inventory is formed by merging data from multiple sources; the production activity of this product includes reaction, concentration, centrifugation, drying and other process steps. Ammonium sulfate is a by-product of this production process.
Activity Description
The production activities of this product include reaction, concentration, centrifugation, drying and other processes.
Process Description
Sodium persulfate chemical formula Na2S2O8, CAS number 7775-27-1, is usually white crystalline powder or granules, odorless and easy to absorb moisture. It is easily soluble in water. The aqueous solution is weakly acidic and insoluble in organic solvents such as ethanol and ether. It is chemically active and has strong oxidizing properties. It can oxidize metal ions, organic matter and sulfides. It is easily decomposed when heated (over 180°C) or in contact with reducing agents and organic matter. It releases oxygen and generates sodium sulfate, sulfuric acid and other substances, which is irritating to the skin and mucous membranes. In industry, it is mainly used in the chemical industry (as a polymerization initiator), metal surface treatment (as an etching agent); it is also used in the textile industry (as a bleaching agent, dye oxidation and color development aid), papermaking industry (for bleaching and deinking of paper), and can also be used as an oxidant for the synthesis of pharmaceutical intermediates and water quality treatment (degradation of reducing pollutants and organic matter in water).
Time period
2013
2026
Geography
China,Shaanxi
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Alkaline conversion is one of the mainstream processes for producing sodium persulfate, in which ammonium persulfate reacts with sodium hydroxide to form sodium persulfate. This dataset represents the process: ammonium persulfate and sodium hydroxide solution are charged to a reactor and heated with steam to remove ammonia. The generated ammonia is absorbed with sulfuric acid in an absorption tower. After the reaction solution is separated, part of the mother liquor is recycled, and the separated sodium persulfate is dried to obtain the finished product. The core reaction equation is: (NH4)2S2O8 + 2NaOH → Na2S2O8 + 2NH3↑ + 2H2O.