Cradle to Consumer
Identity ID
286efefd-066d-49ff-adc3-2dea4b35be07
Materials
Associated ID
bc92b8ba-db1e-4d05-85ee-76de53c2ac62
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. Sulfur hexafluoride is an inert gas that can be used in industries such as the electrical equipment industry, the semiconductor manufacturing industry, the refrigeration industry, non-ferrous metal smelting, aerospace, medical care, meteorology and chemicals; sulfur hexafluoride is modelled as a pure substance, and when modelling this substance in solution the user needs to add a solvent of their choice in the model. The dataset contains the main raw and auxiliary materials, energy, atmospheric emissions, wastewater and solid waste of the production process, in which the wastewater and waste gas treatment processes are included within the dataset scope, 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 potassium bifluoride electrolysis, the reaction of elemental fluorine with sulfur, and rectification purification, as well as utility processes such as refrigeration and nitrogen production, and environmental protection processes such as sewage treatment and waste gas treatment; hydrofluoric acid is a by-product of this production process, allocated using economic value as the allocation basis.
Activity Description
The production activities of this product include processes such as potassium bifluoride electrolysis, reaction of elemental fluorine with sulfur, distillation and purification, as well as utility processes like refrigeration and nitrogen generation, and environmental processes such as wastewater treatment and waste gas treatment.
Process Description
The chemical formula of sulfur hexafluoride is SF6, CAS number 2551-62-4. It is a colorless, odorless, non-toxic, non-flammable, and non-corrosive inert gas under normal pressure. It has a melting point of -50.8°C and a sublimation point of -63.8°C at atmospheric pressure. Sulfur hexafluoride is chemically stable and does not react with acids, alkalis, salts, ammonia, or water at room temperature, but it decomposes above 500°C, producing toxic and corrosive fumes containing sulfur oxides and fluorine compounds. Sulfur hexafluoride can be used in the power equipment industry, semiconductor manufacturing, refrigeration industry, non-ferrous metal smelting, aerospace, medical equipment (X-ray machines and laser systems), meteorology (tracer analysis), the chemical industry, and other fields. Electronic-grade sulfur hexafluoride is mainly used for etching and cleaning in semiconductor and flat-panel display manufacturing processes.
Time period
2024
2026
Geography
China,Liaoning
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
This project adopts a medium-temperature electrolysis method, using carbon plates as anodes at 75-130°C, and electrolyzing potassium hydrogen fluoride to produce elemental fluorine. Subsequently, in the primary and secondary reactors, fluorine reacts with sulfur to produce SF6, and sulfur hexafluoride is subsequently distilled and purified to obtain the product.