Process information
| Key Data Set Information | |
| Location | DE |
| Geographical representativeness description | The data set represents the country specific situation in Germany, focusing on the main technologies, the region specific characteristics and / or import statistics. |
| Reference year | 2022 |
| Name |
Base name
; Quantitative product or process properties
Anodization of aluminium; aluminium anodizing
|
| Use advice for data set | The data set represents a cradle to gate inventory. It can be used to characterise the supply chain situation of the respective commodity in a representative manner. Combination with individual unit processes using this commodity enables the generation of user-specific (product) LCAs. |
| Technical purpose of product or process | This product can be used in construction. |
| Classification number | 4.7.01 |
| Classification |
Class name
:
Hierarchy level
|
| General comment on data set | This data set has been modeled according to the European Standard EN 15804+A2 for Sustainable Building. Results are depicted in modules that allow the structured expression of results over the entire life cycle. |
| Uncertainty margins | 10 |
| Description | Product system almost completely covered. Good technological, temporal and geographic representativeness. |
| Copyright | Yes |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Time representativeness | |
| Data set valid until | 2024 |
| Time representativeness description | Annual average |
| Technological representativeness | |
| Technology description including background system | The dataset includes the process of anodizing of a 2 square meters aluminium profile. Not included is the production of the aluminium extrusion profile, which should be calculated separately. Anodizing is an electrolytic passivation process which increases the thickness of a natural oxide layer on surface of a metal part. The metal is cleaned with a cleaning agent and etched with sodium hydroxides or acids. To grow the aluminium, an electrolysis takes place. Direct current is passed through an electrolytic solution, the aluminium serves as an anode. The cathode consists of carbon, lead, nickel, stainless or other material which is unreactive during the electrolysis. The cathode produces hydrogen, the aluminium anode oxygen forming aluminium oxide. The electrolytic solution chosen depends on which kind of oxide layer has to be produced. Barrier oxide is grown in almost neutral solutions where aluminium oxide is hardly soluble, porous oxide in acidic solutions in which the oxide can also be dissolved. The most widely used solution is dilute sulphuric acid. |
| Flow diagram(s) or picture(s) | |
Modelling and validation
Administrative information
Environmental indicators