Alumina production ; Alumina for metallurgy ; Bayer process ; Bauxite

Categories:
Categories:
Unit processes/Materials production/Inorganic chemicals
Location:
CN - China
Reference year: 2011 -
Description

我国氧化铝生产中拜耳法、烧结法、混联法三种工艺并行。因为我国铝土矿主要为品味较低的一水硬铝,单位资源与能源消耗较高。随着生产技术的进步,拜耳法生产的氧化铝在我国铝产量中的比例已经由2000年的11.4%提升到2010年的75.8%,而烧结法则由2000年的23.65%减至5.9%。拜耳法氧化铝生产过程中主要的能源介质为蒸汽、煤气或重油、电及焦炭。其中蒸汽约占60%,煤气或重油约占20%,电约占10%。 Users of this data set should consider the energy and resource consumption, as well as waste emissions, as these factors significantly impact the environmental footprint during the production of aluminum products. The life cycle boundary for this dataset encompasses the process from bauxite mining to primary aluminum production, including bauxite extraction, alumina production, anode production, and the aluminum electrolysis process. Minor auxiliary materials like limestone and asphalt mining, production, and transportation processes are excluded from the assessment system. Hence, users must not include these auxiliary inputs in the environmental impact assessment related to alumina production when applying this data.

Process type
Unit
LCI modeling approach
Unknown
Multifunctional modeling
NONE
Format
ILCD
Aggregation type
NOT_APPLICABLE
Data provider
TianGong
Review status
Internal
Cost
Free
Contact
Tiangong LCI Data Working Group