Description: technologyComment of brass production (CH): Production is basically done by melting the different metals. Due to the high vapour pressure of zinc and tin, parts of these inputs arise as air emissions. Filters are commonly used to abate these emissions.
Types:
Text {
text_type: Report,
}
Comment: This is a market activity. Each market represents the consumption mix of a product in a given geography, connecting suppliers with consumers of the same product in the same geographical area. Markets group the producers and also the imports of the product (if relevant) within the same geographical area. They also account for transport to the consumer and for the losses during that process, when relevant. This is the market for 'brass', in the geography of Switzerland. The transport distances in this market are taken from a model based on statistics on transport of goods in Switzerland (Valsasina, 2016, Default transport data per commodity group for Switzerland, ecoinvent, www.ecoinvent.org). The amount of brass produced in Switzerland is 3.45E+07 kg. The import is 1.04E+06 kg and the export is 3.65E+05 kg (data for 2014, SwissImpex database, https://www.swiss-impex.admin.ch/, accessed 20160112). Since both import and export represent less than 5% of the production the regional market is created. This market is supplied by the following activities with the given share: brass production, CH: 1.0 generalComment of brass production (CH): This dataset describes the processing of copper and zinc, up to production of 1 kg of molten brass. [This dataset was already contained in the ecoinvent database version 2. It was not individually updated during the transfer to ecoinvent version 3. Life Cycle Impact Assessment results may still have changed, as they are affected by changes in the supply chain, i.e. in other datasets. This dataset was generated following the ecoinvent quality guidelines for version 2. It may have been subject to central changes described in the ecoinvent version 3 change report (http://www.ecoinvent.org/database/ecoinvent-version-3/reports-of-changes/), and the results of the central updates were reviewed extensively. The changes added e.g. consistent water flows and other information throughout the database. The documentation of this dataset can be found in the ecoinvent reports of version 2, which are still available via the ecoinvent website. The change report linked above covers all central changes that were made during the conversion process.] All data are calculated based on assumptions and theoretical models. The overall quality of the dataset is poor, making it of insufficient quality for LCA where these metals play an important role.
Origin: /Bund/UBA/ProBas
Tags: Zinn ? Zink ? Filter ? Metall ? Luftemission ? Dampfdruck ? Messing ? Manufacture of basic metals ? Manufacture of basic precious and other non-ferrous metals ? Manufacturing ?
License: unbekannt
Language: Deutsch
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