TianGong Life Cycle Inventory
TianGong Life Cycle Inventory
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Data set: Chemical treatment for Al (including remelting phase), Ag and Si;Al (including remelting phase), Ag and Si;Chemical treatment (01.00.005)

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Full name
Chemical treatment for Al (including remelting phase), Ag and Si;Al (including remelting phase), Ag and Si;Chemical treatment
Location
CN
Reference year
2017
Valid until
Reference flow(s)
Type
Unit process, single operation
Parameterized?
no
LCIA results included?
no
Category
Materials production / Inorganic chemicals
Synonyms
Use advice for data set
When using the LCA data for the described chemical treatment process, ensure that it is applied to scenarios involving the recycling of Al, Ag, and Si in the context of PV module manufacturing. Use the data in line with environmental impact assessments and industry reports for the polysilicon and PV sectors in China. If multiple data sources provide inventory information for the same material, utilize the average values to align with the methodological framework outlined in the described process. The inventory data sets should be regularly updated to reflect the latest industry practices and input from multiple photovoltaic enterprises.
Data set use approval
General comment
The remaining silicon metal and the other dissolved metals in theacid solution are successively treated.The recycling framework is shown in Fig. 5. Glass need to be remelted, EVA (Ethylene Vinyl Acetat) need thermal treatment, and aluminum need remetling and chemical treatment before they may substitute virgin materials in the module assembling process. Meanwhile, chemical treatment is necessary for silicon and silver before recycling in polysilicon production and multi-Si PV cell respectively.
LCI Method Principle
LCI Method Approaches
No records found.
Completeness of product model
No statement
Reviews
  • Dependent internal review by
License and access conditions
Copyright
no
License type
Free of charge for all users and uses
Owner of data set
Tiangong LCI Data Working Group
Technical purpose
The described process involves the chemical treatment of aluminum (Al), silver (Ag), and silicon (Si) for recycling purposes. The aluminum undergoes remelting and chemical treatment to enable its use as a substitute for virgin materials during the module assembling process in photovoltaic (PV) production. Similarly, chemical treatment is essential for the recycling of silicon in polysilicon production and for silver in the manufacturing of multi-Si PV cells. This process is specifically geared towards PV industry applications, supplying recycled high-purity materials for use in solar module manufacturing.
Input Products
No records found.
Co-Products
No records found.
Data set version
01.00.005
Time stamp (last saved)
2024-05-12T21:20:00+08:00
Data set format
Compliance systems
No records found.
Tag
Registered in
Process is not registered in any registry
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soda4LCA 7.10.3